/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:49:22,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:49:22,466 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:49:22,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:49:22,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:49:22,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:49:22,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:49:22,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:49:22,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:49:22,482 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:49:22,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:49:22,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:49:22,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:49:22,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:49:22,483 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:49:22,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:49:22,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:49:22,484 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:49:22,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:49:22,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:49:22,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:49:22,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:49:22,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:49:22,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:49:22,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:49:22,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:49:22,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:49:22,486 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:49:22,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:49:22,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:49:22,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:49:22,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:49:22,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:49:22,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:49:22,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:49:22,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:49:22,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:49:22,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:49:22,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:49:22,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:49:22,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:49:22,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:49:22,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:49:22,490 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:49:22,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:49:22,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:49:22,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:49:22,699 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:49:22,700 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:49:22,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2023-12-15 22:49:23,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:49:23,906 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:49:23,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2023-12-15 22:49:23,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c196c2282/08b0e686d79643b483066a53e45fe156/FLAG4647a75bd [2023-12-15 22:49:23,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c196c2282/08b0e686d79643b483066a53e45fe156 [2023-12-15 22:49:23,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:49:23,936 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:49:23,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:49:23,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:49:23,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:49:23,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:49:23" (1/1) ... [2023-12-15 22:49:23,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fd0717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:23, skipping insertion in model container [2023-12-15 22:49:23,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:49:23" (1/1) ... [2023-12-15 22:49:23,997 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:49:24,326 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c[51398,51411] [2023-12-15 22:49:24,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:49:24,382 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:49:24,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-15 22:49:24,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [414] [2023-12-15 22:49:24,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [758] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1826] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1861] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2273] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2321] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2330] [2023-12-15 22:49:24,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2552] [2023-12-15 22:49:24,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2569] [2023-12-15 22:49:24,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2674] [2023-12-15 22:49:24,460 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c[51398,51411] [2023-12-15 22:49:24,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:49:24,491 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:49:24,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24 WrapperNode [2023-12-15 22:49:24,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:49:24,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:49:24,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:49:24,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:49:24,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,561 INFO L138 Inliner]: procedures = 132, calls = 210, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1063 [2023-12-15 22:49:24,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:49:24,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:49:24,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:49:24,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:49:24,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,600 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:49:24,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:49:24,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:49:24,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:49:24,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:49:24,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (1/1) ... [2023-12-15 22:49:24,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:49:24,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:24,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:49:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-15 22:49:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-15 22:49:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-15 22:49:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-15 22:49:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-15 22:49:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-15 22:49:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-15 22:49:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-15 22:49:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-15 22:49:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-15 22:49:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:49:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:49:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-15 22:49:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-15 22:49:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:49:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:49:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:49:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:49:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-15 22:49:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-15 22:49:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:49:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:49:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:49:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:49:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-15 22:49:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-15 22:49:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:49:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:49:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-15 22:49:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:49:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:49:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:49:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-15 22:49:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-15 22:49:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:49:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:49:24,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:49:24,922 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:49:24,924 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:49:25,519 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:49:25,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:49:25,575 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:49:25,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:49:25 BoogieIcfgContainer [2023-12-15 22:49:25,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:49:25,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:49:25,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:49:25,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:49:25,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:49:23" (1/3) ... [2023-12-15 22:49:25,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135a6d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:49:25, skipping insertion in model container [2023-12-15 22:49:25,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:49:24" (2/3) ... [2023-12-15 22:49:25,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135a6d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:49:25, skipping insertion in model container [2023-12-15 22:49:25,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:49:25" (3/3) ... [2023-12-15 22:49:25,582 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2023-12-15 22:49:25,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:49:25,593 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:49:25,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:49:25,637 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17db1888, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:49:25,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:49:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 383 states, 290 states have (on average 1.606896551724138) internal successors, (466), 295 states have internal predecessors, (466), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-15 22:49:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 22:49:25,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:25,659 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:25,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:25,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:25,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1525052132, now seen corresponding path program 1 times [2023-12-15 22:49:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:25,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553313827] [2023-12-15 22:49:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:49:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:49:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:49:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:49:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:49:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:49:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:49:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:49:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:49:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:49:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:49:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:49:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:49:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 22:49:26,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:26,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553313827] [2023-12-15 22:49:26,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553313827] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:26,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475266174] [2023-12-15 22:49:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:26,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:26,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:26,235 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) [2023-12-15 22:49:26,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:49:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:26,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:49:26,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-15 22:49:26,575 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:49:26,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475266174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:26,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:49:26,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:49:26,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571748] [2023-12-15 22:49:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:26,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:49:26,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:26,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:49:26,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:49:26,617 INFO L87 Difference]: Start difference. First operand has 383 states, 290 states have (on average 1.606896551724138) internal successors, (466), 295 states have internal predecessors, (466), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:26,698 INFO L93 Difference]: Finished difference Result 578 states and 888 transitions. [2023-12-15 22:49:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:49:26,701 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 116 [2023-12-15 22:49:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:26,712 INFO L225 Difference]: With dead ends: 578 [2023-12-15 22:49:26,713 INFO L226 Difference]: Without dead ends: 380 [2023-12-15 22:49:26,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:49:26,719 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:26,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:49:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-15 22:49:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2023-12-15 22:49:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 288 states have (on average 1.59375) internal successors, (459), 292 states have internal predecessors, (459), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 22:49:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 590 transitions. [2023-12-15 22:49:26,787 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 590 transitions. Word has length 116 [2023-12-15 22:49:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:26,788 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 590 transitions. [2023-12-15 22:49:26,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 590 transitions. [2023-12-15 22:49:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 22:49:26,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:26,797 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:26,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:26,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:49:26,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:26,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1181536300, now seen corresponding path program 1 times [2023-12-15 22:49:26,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:26,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420187560] [2023-12-15 22:49:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:49:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:49:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:49:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:49:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:49:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:49:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:49:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:49:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:49:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:49:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:49:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:49:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:49:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 22:49:27,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:27,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420187560] [2023-12-15 22:49:27,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420187560] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:27,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093147676] [2023-12-15 22:49:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:27,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:27,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:27,262 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) [2023-12-15 22:49:27,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:49:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:27,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:49:27,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-15 22:49:27,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:49:27,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093147676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:27,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:49:27,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:49:27,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174214990] [2023-12-15 22:49:27,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:27,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:49:27,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:49:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:49:27,565 INFO L87 Difference]: Start difference. First operand 380 states and 590 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:27,626 INFO L93 Difference]: Finished difference Result 574 states and 872 transitions. [2023-12-15 22:49:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:49:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2023-12-15 22:49:27,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:27,632 INFO L225 Difference]: With dead ends: 574 [2023-12-15 22:49:27,632 INFO L226 Difference]: Without dead ends: 382 [2023-12-15 22:49:27,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:49:27,639 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 0 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1145 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 [2023-12-15 22:49:27,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1145 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:49:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-15 22:49:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2023-12-15 22:49:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 290 states have (on average 1.589655172413793) internal successors, (461), 294 states have internal predecessors, (461), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 22:49:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 592 transitions. [2023-12-15 22:49:27,655 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 592 transitions. Word has length 117 [2023-12-15 22:49:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:27,655 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 592 transitions. [2023-12-15 22:49:27,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 592 transitions. [2023-12-15 22:49:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 22:49:27,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:27,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:27,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:27,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:49:27,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:27,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:27,875 INFO L85 PathProgramCache]: Analyzing trace with hash -435335341, now seen corresponding path program 1 times [2023-12-15 22:49:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:27,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622030384] [2023-12-15 22:49:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:49:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:49:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:49:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:49:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:49:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:49:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:49:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:49:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:49:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:49:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:49:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:49:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:49:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:49:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:49:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-15 22:49:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 22:49:28,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:28,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622030384] [2023-12-15 22:49:28,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622030384] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:28,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756394842] [2023-12-15 22:49:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:28,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:28,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:28,090 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) [2023-12-15 22:49:28,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:49:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:49:28,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-15 22:49:28,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:49:28,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756394842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:28,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:49:28,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:49:28,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731378365] [2023-12-15 22:49:28,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:28,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:49:28,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:28,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:49:28,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:49:28,357 INFO L87 Difference]: Start difference. First operand 382 states and 592 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:28,415 INFO L93 Difference]: Finished difference Result 816 states and 1283 transitions. [2023-12-15 22:49:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:49:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-12-15 22:49:28,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:28,418 INFO L225 Difference]: With dead ends: 816 [2023-12-15 22:49:28,418 INFO L226 Difference]: Without dead ends: 456 [2023-12-15 22:49:28,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:49:28,421 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 136 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:28,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1115 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:49:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-12-15 22:49:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 451. [2023-12-15 22:49:28,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 345 states have (on average 1.608695652173913) internal successors, (555), 349 states have internal predecessors, (555), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-15 22:49:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 714 transitions. [2023-12-15 22:49:28,445 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 714 transitions. Word has length 142 [2023-12-15 22:49:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:28,446 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 714 transitions. [2023-12-15 22:49:28,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 714 transitions. [2023-12-15 22:49:28,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-15 22:49:28,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:28,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:28,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:28,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:28,660 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:28,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1010141695, now seen corresponding path program 1 times [2023-12-15 22:49:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174603454] [2023-12-15 22:49:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:28,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:49:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:49:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:49:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:49:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:49:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:49:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:49:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:49:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:49:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:49:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:49:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:49:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:49:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:49:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:49:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:49:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 22:49:28,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174603454] [2023-12-15 22:49:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174603454] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059411484] [2023-12-15 22:49:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:28,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:28,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:28,821 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) [2023-12-15 22:49:28,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:49:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:49:29,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-15 22:49:29,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:49:29,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059411484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:29,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:49:29,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:49:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405458178] [2023-12-15 22:49:29,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:29,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:49:29,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:49:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:49:29,110 INFO L87 Difference]: Start difference. First operand 451 states and 714 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:49:29,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:29,202 INFO L93 Difference]: Finished difference Result 897 states and 1422 transitions. [2023-12-15 22:49:29,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:49:29,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2023-12-15 22:49:29,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:29,205 INFO L225 Difference]: With dead ends: 897 [2023-12-15 22:49:29,205 INFO L226 Difference]: Without dead ends: 453 [2023-12-15 22:49:29,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:29,212 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 8 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:29,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2245 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:49:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-12-15 22:49:29,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2023-12-15 22:49:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 346 states have (on average 1.606936416184971) internal successors, (556), 351 states have internal predecessors, (556), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2023-12-15 22:49:29,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 717 transitions. [2023-12-15 22:49:29,225 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 717 transitions. Word has length 143 [2023-12-15 22:49:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:29,225 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 717 transitions. [2023-12-15 22:49:29,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:49:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 717 transitions. [2023-12-15 22:49:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 22:49:29,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:29,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:29,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:29,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:29,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:29,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash 316465877, now seen corresponding path program 1 times [2023-12-15 22:49:29,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:29,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413941442] [2023-12-15 22:49:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:29,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:49:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:49:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:49:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:49:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:49:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:49:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:49:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:49:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:49:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:49:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:49:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:49:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:49:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 22:49:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 22:49:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413941442] [2023-12-15 22:49:29,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413941442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307604570] [2023-12-15 22:49:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:29,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:29,626 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) [2023-12-15 22:49:29,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:49:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:29,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:49:29,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-15 22:49:29,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:49:29,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307604570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:29,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:49:29,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:49:29,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107280366] [2023-12-15 22:49:29,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:29,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:49:29,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:29,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:49:29,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:49:29,970 INFO L87 Difference]: Start difference. First operand 453 states and 717 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:49:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:30,060 INFO L93 Difference]: Finished difference Result 899 states and 1427 transitions. [2023-12-15 22:49:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:49:30,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2023-12-15 22:49:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:30,063 INFO L225 Difference]: With dead ends: 899 [2023-12-15 22:49:30,064 INFO L226 Difference]: Without dead ends: 455 [2023-12-15 22:49:30,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:49:30,065 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 8 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:30,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2231 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:49:30,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-15 22:49:30,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2023-12-15 22:49:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 347 states have (on average 1.6051873198847262) internal successors, (557), 353 states have internal predecessors, (557), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2023-12-15 22:49:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 723 transitions. [2023-12-15 22:49:30,081 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 723 transitions. Word has length 144 [2023-12-15 22:49:30,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:30,081 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 723 transitions. [2023-12-15 22:49:30,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:49:30,082 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 723 transitions. [2023-12-15 22:49:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 22:49:30,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:30,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:30,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:30,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:30,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:30,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash 500783677, now seen corresponding path program 1 times [2023-12-15 22:49:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:30,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276107203] [2023-12-15 22:49:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:49:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:49:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:49:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:49:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:49:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:49:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:49:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:49:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:49:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:49:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:49:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:30,418 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:49:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276107203] [2023-12-15 22:49:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276107203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:30,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:30,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:49:30,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859369631] [2023-12-15 22:49:30,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:30,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:49:30,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:30,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:49:30,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:49:30,420 INFO L87 Difference]: Start difference. First operand 455 states and 723 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 22:49:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:32,408 INFO L93 Difference]: Finished difference Result 1058 states and 1715 transitions. [2023-12-15 22:49:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:49:32,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 127 [2023-12-15 22:49:32,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:32,413 INFO L225 Difference]: With dead ends: 1058 [2023-12-15 22:49:32,413 INFO L226 Difference]: Without dead ends: 622 [2023-12-15 22:49:32,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:49:32,415 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1288 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:32,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 1242 Invalid, 3459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 22:49:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-12-15 22:49:32,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 455. [2023-12-15 22:49:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 347 states have (on average 1.6051873198847262) internal successors, (557), 353 states have internal predecessors, (557), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2023-12-15 22:49:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 722 transitions. [2023-12-15 22:49:32,455 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 722 transitions. Word has length 127 [2023-12-15 22:49:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:32,456 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 722 transitions. [2023-12-15 22:49:32,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 22:49:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 722 transitions. [2023-12-15 22:49:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 22:49:32,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:32,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:32,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:49:32,458 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:32,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash -185531087, now seen corresponding path program 2 times [2023-12-15 22:49:32,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:32,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036705231] [2023-12-15 22:49:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:32,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:49:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:49:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:49:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:49:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:49:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:49:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:49:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:49:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:49:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:49:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:49:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:49:32,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:32,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036705231] [2023-12-15 22:49:32,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036705231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:32,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:32,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:49:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298876073] [2023-12-15 22:49:32,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:32,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:49:32,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:32,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:49:32,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:49:32,643 INFO L87 Difference]: Start difference. First operand 455 states and 722 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 22:49:34,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:34,649 INFO L93 Difference]: Finished difference Result 1060 states and 1718 transitions. [2023-12-15 22:49:34,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:49:34,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2023-12-15 22:49:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:34,654 INFO L225 Difference]: With dead ends: 1060 [2023-12-15 22:49:34,654 INFO L226 Difference]: Without dead ends: 624 [2023-12-15 22:49:34,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:49:34,656 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1283 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:34,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1240 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 22:49:34,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-15 22:49:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 457. [2023-12-15 22:49:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 348 states have (on average 1.603448275862069) internal successors, (558), 355 states have internal predecessors, (558), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2023-12-15 22:49:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 725 transitions. [2023-12-15 22:49:34,684 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 725 transitions. Word has length 128 [2023-12-15 22:49:34,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:34,684 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 725 transitions. [2023-12-15 22:49:34,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-15 22:49:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 725 transitions. [2023-12-15 22:49:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-15 22:49:34,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:34,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:34,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:49:34,687 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:34,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1360130600, now seen corresponding path program 1 times [2023-12-15 22:49:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628254288] [2023-12-15 22:49:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:49:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:49:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:49:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:49:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:49:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:49:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:49:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:49:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:49:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:49:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:49:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:49:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:49:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:34,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:34,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628254288] [2023-12-15 22:49:34,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628254288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:34,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:34,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:49:34,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029988140] [2023-12-15 22:49:34,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:34,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:49:34,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:49:34,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:49:34,926 INFO L87 Difference]: Start difference. First operand 457 states and 725 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:49:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:37,566 INFO L93 Difference]: Finished difference Result 1058 states and 1713 transitions. [2023-12-15 22:49:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:49:37,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-15 22:49:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:37,571 INFO L225 Difference]: With dead ends: 1058 [2023-12-15 22:49:37,571 INFO L226 Difference]: Without dead ends: 624 [2023-12-15 22:49:37,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:49:37,573 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1304 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 4810 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 4810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:37,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 1717 Invalid, 5304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 4810 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 22:49:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-15 22:49:37,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 457. [2023-12-15 22:49:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 348 states have (on average 1.603448275862069) internal successors, (558), 355 states have internal predecessors, (558), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2023-12-15 22:49:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 724 transitions. [2023-12-15 22:49:37,595 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 724 transitions. Word has length 147 [2023-12-15 22:49:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:37,595 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 724 transitions. [2023-12-15 22:49:37,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:49:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 724 transitions. [2023-12-15 22:49:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 22:49:37,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:37,597 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:37,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:49:37,597 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:37,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -678583588, now seen corresponding path program 1 times [2023-12-15 22:49:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426001188] [2023-12-15 22:49:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:37,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:49:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:49:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:49:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:49:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:49:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:49:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:49:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:49:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:49:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:49:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:49:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426001188] [2023-12-15 22:49:37,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426001188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:37,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:37,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:49:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555230038] [2023-12-15 22:49:37,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:37,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:49:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:37,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:49:37,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:49:37,788 INFO L87 Difference]: Start difference. First operand 457 states and 724 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-15 22:49:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:40,332 INFO L93 Difference]: Finished difference Result 1060 states and 1719 transitions. [2023-12-15 22:49:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:49:40,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 130 [2023-12-15 22:49:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:40,335 INFO L225 Difference]: With dead ends: 1060 [2023-12-15 22:49:40,335 INFO L226 Difference]: Without dead ends: 626 [2023-12-15 22:49:40,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:49:40,337 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1296 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 4941 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 4941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:40,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 1718 Invalid, 5415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 4941 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 22:49:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-12-15 22:49:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 459. [2023-12-15 22:49:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 349 states have (on average 1.6017191977077363) internal successors, (559), 357 states have internal predecessors, (559), 80 states have call successors, (80), 25 states have call predecessors, (80), 29 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2023-12-15 22:49:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 730 transitions. [2023-12-15 22:49:40,358 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 730 transitions. Word has length 130 [2023-12-15 22:49:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:40,359 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 730 transitions. [2023-12-15 22:49:40,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-15 22:49:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 730 transitions. [2023-12-15 22:49:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 22:49:40,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:40,360 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:40,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:49:40,361 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:40,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash 764781981, now seen corresponding path program 1 times [2023-12-15 22:49:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655546162] [2023-12-15 22:49:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:40,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:49:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:49:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:49:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:49:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:49:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:49:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:49:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:49:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:49:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:49:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:49:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:49:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 22:49:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-15 22:49:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655546162] [2023-12-15 22:49:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655546162] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:49:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877007240] [2023-12-15 22:49:40,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:40,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:40,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:49:40,528 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) [2023-12-15 22:49:40,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:49:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:40,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:49:40,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:49:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:40,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:49:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:40,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877007240] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:49:40,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:49:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-15 22:49:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569378442] [2023-12-15 22:49:40,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:49:40,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 22:49:40,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 22:49:40,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:49:40,921 INFO L87 Difference]: Start difference. First operand 459 states and 730 transitions. Second operand has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2023-12-15 22:49:43,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:43,658 INFO L93 Difference]: Finished difference Result 1499 states and 2530 transitions. [2023-12-15 22:49:43,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 22:49:43,658 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 149 [2023-12-15 22:49:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:43,663 INFO L225 Difference]: With dead ends: 1499 [2023-12-15 22:49:43,663 INFO L226 Difference]: Without dead ends: 1066 [2023-12-15 22:49:43,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-15 22:49:43,665 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 2625 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 4702 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2646 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 5648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 4702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:43,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2646 Valid, 1999 Invalid, 5648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 4702 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 22:49:43,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-12-15 22:49:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 884. [2023-12-15 22:49:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 695 states have (on average 1.6503597122302158) internal successors, (1147), 703 states have internal predecessors, (1147), 159 states have call successors, (159), 25 states have call predecessors, (159), 29 states have return successors, (180), 157 states have call predecessors, (180), 158 states have call successors, (180) [2023-12-15 22:49:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1486 transitions. [2023-12-15 22:49:43,699 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1486 transitions. Word has length 149 [2023-12-15 22:49:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:43,700 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1486 transitions. [2023-12-15 22:49:43,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2023-12-15 22:49:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1486 transitions. [2023-12-15 22:49:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-15 22:49:43,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:43,703 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:43,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:49:43,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:49:43,915 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:43,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1466040042, now seen corresponding path program 1 times [2023-12-15 22:49:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717721746] [2023-12-15 22:49:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:49:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:49:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:49:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:49:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:49:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:49:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:49:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:49:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:49:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:49:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:49:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:49:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-15 22:49:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:43,985 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:43,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:43,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717721746] [2023-12-15 22:49:43,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717721746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:43,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:43,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:43,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980514657] [2023-12-15 22:49:43,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:43,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:43,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:43,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:43,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:43,987 INFO L87 Difference]: Start difference. First operand 884 states and 1486 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:45,463 INFO L93 Difference]: Finished difference Result 2274 states and 3919 transitions. [2023-12-15 22:49:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:45,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2023-12-15 22:49:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:45,470 INFO L225 Difference]: With dead ends: 2274 [2023-12-15 22:49:45,470 INFO L226 Difference]: Without dead ends: 1458 [2023-12-15 22:49:45,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:45,472 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1418 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:45,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 934 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:49:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2023-12-15 22:49:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1286. [2023-12-15 22:49:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1018 states have (on average 1.6640471512770139) internal successors, (1694), 1026 states have internal predecessors, (1694), 238 states have call successors, (238), 25 states have call predecessors, (238), 29 states have return successors, (269), 236 states have call predecessors, (269), 237 states have call successors, (269) [2023-12-15 22:49:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 2201 transitions. [2023-12-15 22:49:45,523 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 2201 transitions. Word has length 153 [2023-12-15 22:49:45,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:45,523 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 2201 transitions. [2023-12-15 22:49:45,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:45,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 2201 transitions. [2023-12-15 22:49:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-15 22:49:45,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:45,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:45,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:49:45,529 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:45,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1916108133, now seen corresponding path program 1 times [2023-12-15 22:49:45,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773596635] [2023-12-15 22:49:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:49:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:49:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:49:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:49:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:49:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:49:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:49:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:49:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:49:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:49:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:45,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:45,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773596635] [2023-12-15 22:49:45,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773596635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:45,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:45,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:45,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140844628] [2023-12-15 22:49:45,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:45,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:45,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:45,612 INFO L87 Difference]: Start difference. First operand 1286 states and 2201 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:47,124 INFO L93 Difference]: Finished difference Result 3277 states and 5696 transitions. [2023-12-15 22:49:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:47,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2023-12-15 22:49:47,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:47,132 INFO L225 Difference]: With dead ends: 3277 [2023-12-15 22:49:47,132 INFO L226 Difference]: Without dead ends: 2109 [2023-12-15 22:49:47,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:47,135 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1411 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:47,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 916 Invalid, 2230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:49:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2023-12-15 22:49:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1937. [2023-12-15 22:49:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1550 states have (on average 1.6709677419354838) internal successors, (2590), 1558 states have internal predecessors, (2590), 357 states have call successors, (357), 25 states have call predecessors, (357), 29 states have return successors, (388), 355 states have call predecessors, (388), 356 states have call successors, (388) [2023-12-15 22:49:47,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 3335 transitions. [2023-12-15 22:49:47,215 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 3335 transitions. Word has length 136 [2023-12-15 22:49:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:47,216 INFO L495 AbstractCegarLoop]: Abstraction has 1937 states and 3335 transitions. [2023-12-15 22:49:47,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 3335 transitions. [2023-12-15 22:49:47,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-15 22:49:47,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:47,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:47,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:49:47,224 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:47,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1855211474, now seen corresponding path program 1 times [2023-12-15 22:49:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:47,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937143164] [2023-12-15 22:49:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:49:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:49:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:49:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:49:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:49:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:49:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:49:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:49:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:49:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:49:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:47,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937143164] [2023-12-15 22:49:47,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937143164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:47,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:47,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:47,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888900415] [2023-12-15 22:49:47,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:47,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:47,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:47,318 INFO L87 Difference]: Start difference. First operand 1937 states and 3335 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:48,797 INFO L93 Difference]: Finished difference Result 4801 states and 8414 transitions. [2023-12-15 22:49:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:48,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2023-12-15 22:49:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:48,808 INFO L225 Difference]: With dead ends: 4801 [2023-12-15 22:49:48,808 INFO L226 Difference]: Without dead ends: 3110 [2023-12-15 22:49:48,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:48,812 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1416 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:48,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 907 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:49:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2023-12-15 22:49:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2938. [2023-12-15 22:49:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2389 states have (on average 1.6768522394307241) internal successors, (4006), 2397 states have internal predecessors, (4006), 519 states have call successors, (519), 25 states have call predecessors, (519), 29 states have return successors, (566), 517 states have call predecessors, (566), 518 states have call successors, (566) [2023-12-15 22:49:48,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 5091 transitions. [2023-12-15 22:49:48,907 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 5091 transitions. Word has length 137 [2023-12-15 22:49:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:48,907 INFO L495 AbstractCegarLoop]: Abstraction has 2938 states and 5091 transitions. [2023-12-15 22:49:48,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 5091 transitions. [2023-12-15 22:49:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-15 22:49:48,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:48,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:48,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:49:48,919 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:48,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2124252004, now seen corresponding path program 1 times [2023-12-15 22:49:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:48,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942051741] [2023-12-15 22:49:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:49:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:49:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:49:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:49:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:49:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:49:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:49:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:49:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:49:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 22:49:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:48,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:48,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942051741] [2023-12-15 22:49:48,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942051741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:48,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:48,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:48,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285847899] [2023-12-15 22:49:48,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:48,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:48,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:48,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:48,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:48,988 INFO L87 Difference]: Start difference. First operand 2938 states and 5091 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:50,430 INFO L93 Difference]: Finished difference Result 7213 states and 12727 transitions. [2023-12-15 22:49:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:50,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2023-12-15 22:49:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:50,452 INFO L225 Difference]: With dead ends: 7213 [2023-12-15 22:49:50,452 INFO L226 Difference]: Without dead ends: 4730 [2023-12-15 22:49:50,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:50,460 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1406 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:50,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 911 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:49:50,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2023-12-15 22:49:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 4558. [2023-12-15 22:49:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4558 states, 3764 states have (on average 1.6811902231668439) internal successors, (6328), 3772 states have internal predecessors, (6328), 764 states have call successors, (764), 25 states have call predecessors, (764), 29 states have return successors, (837), 762 states have call predecessors, (837), 763 states have call successors, (837) [2023-12-15 22:49:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 7929 transitions. [2023-12-15 22:49:50,672 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 7929 transitions. Word has length 138 [2023-12-15 22:49:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:50,672 INFO L495 AbstractCegarLoop]: Abstraction has 4558 states and 7929 transitions. [2023-12-15 22:49:50,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 7929 transitions. [2023-12-15 22:49:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-15 22:49:50,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:50,690 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:50,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:49:50,690 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:50,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1903243766, now seen corresponding path program 1 times [2023-12-15 22:49:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:50,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283381378] [2023-12-15 22:49:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:49:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:49:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:49:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:49:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:49:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:49:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:49:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:49:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:49:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 22:49:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:49:50,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:50,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283381378] [2023-12-15 22:49:50,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283381378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:50,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:50,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952287547] [2023-12-15 22:49:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:50,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:50,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:50,818 INFO L87 Difference]: Start difference. First operand 4558 states and 7929 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:52,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:52,315 INFO L93 Difference]: Finished difference Result 11290 states and 19980 transitions. [2023-12-15 22:49:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:52,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2023-12-15 22:49:52,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:52,348 INFO L225 Difference]: With dead ends: 11290 [2023-12-15 22:49:52,348 INFO L226 Difference]: Without dead ends: 7490 [2023-12-15 22:49:52,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:52,361 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1408 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:52,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 927 Invalid, 2242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:49:52,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2023-12-15 22:49:52,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 7318. [2023-12-15 22:49:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7318 states, 6031 states have (on average 1.675344055712154) internal successors, (10104), 6039 states have internal predecessors, (10104), 1257 states have call successors, (1257), 25 states have call predecessors, (1257), 29 states have return successors, (1374), 1255 states have call predecessors, (1374), 1256 states have call successors, (1374) [2023-12-15 22:49:52,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7318 states to 7318 states and 12735 transitions. [2023-12-15 22:49:52,629 INFO L78 Accepts]: Start accepts. Automaton has 7318 states and 12735 transitions. Word has length 139 [2023-12-15 22:49:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:52,629 INFO L495 AbstractCegarLoop]: Abstraction has 7318 states and 12735 transitions. [2023-12-15 22:49:52,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:49:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7318 states and 12735 transitions. [2023-12-15 22:49:52,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-15 22:49:52,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:52,656 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:52,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:49:52,656 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:52,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:52,657 INFO L85 PathProgramCache]: Analyzing trace with hash 172014678, now seen corresponding path program 1 times [2023-12-15 22:49:52,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:52,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121539353] [2023-12-15 22:49:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:49:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:49:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:49:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:49:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:49:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:49:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:49:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:49:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:49:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 22:49:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 22:49:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-15 22:49:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-15 22:49:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:52,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:52,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121539353] [2023-12-15 22:49:52,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121539353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:52,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:52,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:52,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522385269] [2023-12-15 22:49:52,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:52,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:52,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:52,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:52,737 INFO L87 Difference]: Start difference. First operand 7318 states and 12735 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:54,368 INFO L93 Difference]: Finished difference Result 18649 states and 33000 transitions. [2023-12-15 22:49:54,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:54,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2023-12-15 22:49:54,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:54,414 INFO L225 Difference]: With dead ends: 18649 [2023-12-15 22:49:54,414 INFO L226 Difference]: Without dead ends: 12475 [2023-12-15 22:49:54,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:54,436 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1407 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:54,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 908 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:49:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12475 states. [2023-12-15 22:49:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12475 to 12303. [2023-12-15 22:49:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12303 states, 10194 states have (on average 1.675299195605258) internal successors, (17078), 10202 states have internal predecessors, (17078), 2079 states have call successors, (2079), 25 states have call predecessors, (2079), 29 states have return successors, (2274), 2077 states have call predecessors, (2274), 2078 states have call successors, (2274) [2023-12-15 22:49:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12303 states to 12303 states and 21431 transitions. [2023-12-15 22:49:54,841 INFO L78 Accepts]: Start accepts. Automaton has 12303 states and 21431 transitions. Word has length 158 [2023-12-15 22:49:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:54,842 INFO L495 AbstractCegarLoop]: Abstraction has 12303 states and 21431 transitions. [2023-12-15 22:49:54,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 12303 states and 21431 transitions. [2023-12-15 22:49:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-15 22:49:54,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:54,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:54,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:49:54,880 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:54,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:54,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1960569682, now seen corresponding path program 1 times [2023-12-15 22:49:54,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:54,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985333291] [2023-12-15 22:49:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:49:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:49:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:49:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:49:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:49:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:49:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:49:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:49:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:49:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 22:49:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:49:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-15 22:49:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-15 22:49:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:55,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:55,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985333291] [2023-12-15 22:49:55,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985333291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:55,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:55,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:55,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588672292] [2023-12-15 22:49:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:55,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:55,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:55,015 INFO L87 Difference]: Start difference. First operand 12303 states and 21431 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:56,790 INFO L93 Difference]: Finished difference Result 29615 states and 52183 transitions. [2023-12-15 22:49:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:56,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2023-12-15 22:49:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:56,866 INFO L225 Difference]: With dead ends: 29615 [2023-12-15 22:49:56,866 INFO L226 Difference]: Without dead ends: 19435 [2023-12-15 22:49:56,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:56,891 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1401 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:56,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 888 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:49:56,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19435 states. [2023-12-15 22:49:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19435 to 19263. [2023-12-15 22:49:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19263 states, 15951 states have (on average 1.6532505799009467) internal successors, (26371), 15959 states have internal predecessors, (26371), 3282 states have call successors, (3282), 25 states have call predecessors, (3282), 29 states have return successors, (3621), 3280 states have call predecessors, (3621), 3281 states have call successors, (3621) [2023-12-15 22:49:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19263 states to 19263 states and 33274 transitions. [2023-12-15 22:49:57,475 INFO L78 Accepts]: Start accepts. Automaton has 19263 states and 33274 transitions. Word has length 159 [2023-12-15 22:49:57,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:49:57,475 INFO L495 AbstractCegarLoop]: Abstraction has 19263 states and 33274 transitions. [2023-12-15 22:49:57,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19263 states and 33274 transitions. [2023-12-15 22:49:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-15 22:49:57,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:49:57,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:49:57,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:49:57,502 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:49:57,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:49:57,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1445813961, now seen corresponding path program 1 times [2023-12-15 22:49:57,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:49:57,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111135156] [2023-12-15 22:49:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:49:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:49:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:49:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:49:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:49:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:49:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:49:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:49:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:49:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:49:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:49:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:49:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:49:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:49:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:49:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:49:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:49:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:49:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-15 22:49:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-15 22:49:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 22:49:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:49:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:49:57,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:49:57,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111135156] [2023-12-15 22:49:57,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111135156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:49:57,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:49:57,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:49:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899127128] [2023-12-15 22:49:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:49:57,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:49:57,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:49:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:49:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:49:57,576 INFO L87 Difference]: Start difference. First operand 19263 states and 33274 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:49:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:49:59,649 INFO L93 Difference]: Finished difference Result 51056 states and 89716 transitions. [2023-12-15 22:49:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:49:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2023-12-15 22:49:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:49:59,783 INFO L225 Difference]: With dead ends: 51056 [2023-12-15 22:49:59,784 INFO L226 Difference]: Without dead ends: 34564 [2023-12-15 22:49:59,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:49:59,834 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1406 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:49:59,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 910 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:49:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34564 states. [2023-12-15 22:50:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34564 to 34392. [2023-12-15 22:50:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34392 states, 28630 states have (on average 1.6505763185469786) internal successors, (47256), 28638 states have internal predecessors, (47256), 5732 states have call successors, (5732), 25 states have call predecessors, (5732), 29 states have return successors, (6345), 5730 states have call predecessors, (6345), 5731 states have call successors, (6345) [2023-12-15 22:50:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34392 states to 34392 states and 59333 transitions. [2023-12-15 22:50:00,966 INFO L78 Accepts]: Start accepts. Automaton has 34392 states and 59333 transitions. Word has length 160 [2023-12-15 22:50:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:00,967 INFO L495 AbstractCegarLoop]: Abstraction has 34392 states and 59333 transitions. [2023-12-15 22:50:00,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:50:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 34392 states and 59333 transitions. [2023-12-15 22:50:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-15 22:50:01,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:01,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:01,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:50:01,007 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:01,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:01,008 INFO L85 PathProgramCache]: Analyzing trace with hash 42588242, now seen corresponding path program 1 times [2023-12-15 22:50:01,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:01,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535457454] [2023-12-15 22:50:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:50:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:50:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:50:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:50:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:50:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:50:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:50:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:50:01,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:01,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535457454] [2023-12-15 22:50:01,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535457454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:01,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539397892] [2023-12-15 22:50:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:01,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:01,087 INFO L87 Difference]: Start difference. First operand 34392 states and 59333 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:50:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:03,882 INFO L93 Difference]: Finished difference Result 93938 states and 164310 transitions. [2023-12-15 22:50:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2023-12-15 22:50:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:04,103 INFO L225 Difference]: With dead ends: 93938 [2023-12-15 22:50:04,103 INFO L226 Difference]: Without dead ends: 63240 [2023-12-15 22:50:04,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:04,175 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1401 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:04,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 926 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:50:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63240 states. [2023-12-15 22:50:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63240 to 63068. [2023-12-15 22:50:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63068 states, 52793 states have (on average 1.6469607713143788) internal successors, (86948), 52801 states have internal predecessors, (86948), 10245 states have call successors, (10245), 25 states have call predecessors, (10245), 29 states have return successors, (11390), 10243 states have call predecessors, (11390), 10244 states have call successors, (11390) [2023-12-15 22:50:06,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63068 states to 63068 states and 108583 transitions. [2023-12-15 22:50:06,564 INFO L78 Accepts]: Start accepts. Automaton has 63068 states and 108583 transitions. Word has length 143 [2023-12-15 22:50:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:06,564 INFO L495 AbstractCegarLoop]: Abstraction has 63068 states and 108583 transitions. [2023-12-15 22:50:06,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 22:50:06,564 INFO L276 IsEmpty]: Start isEmpty. Operand 63068 states and 108583 transitions. [2023-12-15 22:50:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-15 22:50:06,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:06,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:06,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:50:06,623 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:06,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1431752119, now seen corresponding path program 1 times [2023-12-15 22:50:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:06,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440359807] [2023-12-15 22:50:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:06,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:50:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:50:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:50:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:50:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:50:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:50:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:50:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:50:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-15 22:50:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-15 22:50:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-15 22:50:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:50:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440359807] [2023-12-15 22:50:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440359807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:06,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:06,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154126847] [2023-12-15 22:50:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:06,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:06,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:06,715 INFO L87 Difference]: Start difference. First operand 63068 states and 108583 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:50:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:10,191 INFO L93 Difference]: Finished difference Result 118318 states and 207462 transitions. [2023-12-15 22:50:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:10,192 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2023-12-15 22:50:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:10,703 INFO L225 Difference]: With dead ends: 118318 [2023-12-15 22:50:10,704 INFO L226 Difference]: Without dead ends: 118126 [2023-12-15 22:50:10,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:10,738 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1387 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:10,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 910 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:50:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118126 states. [2023-12-15 22:50:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118126 to 117954. [2023-12-15 22:50:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117954 states, 99311 states have (on average 1.64229541541219) internal successors, (163098), 99319 states have internal predecessors, (163098), 18613 states have call successors, (18613), 25 states have call predecessors, (18613), 29 states have return successors, (20804), 18611 states have call predecessors, (20804), 18612 states have call successors, (20804) [2023-12-15 22:50:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117954 states to 117954 states and 202515 transitions. [2023-12-15 22:50:14,967 INFO L78 Accepts]: Start accepts. Automaton has 117954 states and 202515 transitions. Word has length 162 [2023-12-15 22:50:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:14,967 INFO L495 AbstractCegarLoop]: Abstraction has 117954 states and 202515 transitions. [2023-12-15 22:50:14,967 INFO L496 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:50:14,968 INFO L276 IsEmpty]: Start isEmpty. Operand 117954 states and 202515 transitions. [2023-12-15 22:50:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-15 22:50:15,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:15,038 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:15,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:50:15,038 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:15,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1519531769, now seen corresponding path program 1 times [2023-12-15 22:50:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:15,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736720013] [2023-12-15 22:50:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:50:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:50:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:50:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:50:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:50:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:50:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:50:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 22:50:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 22:50:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-15 22:50:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-15 22:50:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-15 22:50:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-15 22:50:15,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:15,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736720013] [2023-12-15 22:50:15,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736720013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:15,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:15,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:50:15,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430454838] [2023-12-15 22:50:15,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:15,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:50:15,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:50:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:15,352 INFO L87 Difference]: Start difference. First operand 117954 states and 202515 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Received shutdown request... [2023-12-15 22:50:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-15 22:50:20,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2023-12-15 22:50:20,347 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 2819 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 4103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:20,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 1609 Invalid, 4103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 22:50:20,348 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:50:20,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:50:20,348 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (117954states) and FLOYD_HOARE automaton (currently 24 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (115643 states constructed, input type IntersectNwa). [2023-12-15 22:50:20,351 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:50:20,353 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:50:20,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:50:20 BoogieIcfgContainer [2023-12-15 22:50:20,355 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:50:20,355 INFO L158 Benchmark]: Toolchain (without parser) took 56419.33ms. Allocated memory was 293.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 245.2MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-15 22:50:20,355 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:50:20,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.34ms. Allocated memory is still 293.6MB. Free memory was 244.7MB in the beginning and 202.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-15 22:50:20,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.23ms. Allocated memory is still 293.6MB. Free memory was 202.8MB in the beginning and 196.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:50:20,356 INFO L158 Benchmark]: Boogie Preprocessor took 99.90ms. Allocated memory is still 293.6MB. Free memory was 196.5MB in the beginning and 188.6MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 22:50:20,356 INFO L158 Benchmark]: RCFGBuilder took 912.74ms. Allocated memory is still 293.6MB. Free memory was 188.6MB in the beginning and 200.7MB in the end (delta: -12.1MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-12-15 22:50:20,356 INFO L158 Benchmark]: TraceAbstraction took 54777.52ms. Allocated memory was 293.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 199.7MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 22:50:20,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 552.34ms. Allocated memory is still 293.6MB. Free memory was 244.7MB in the beginning and 202.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.23ms. Allocated memory is still 293.6MB. Free memory was 202.8MB in the beginning and 196.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 99.90ms. Allocated memory is still 293.6MB. Free memory was 196.5MB in the beginning and 188.6MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 912.74ms. Allocated memory is still 293.6MB. Free memory was 188.6MB in the beginning and 200.7MB in the end (delta: -12.1MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. * TraceAbstraction took 54777.52ms. Allocated memory was 293.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 199.7MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] - GenericResultAtLocation [Line: 414]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [414] - GenericResultAtLocation [Line: 758]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [758] - GenericResultAtLocation [Line: 1826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1826] - GenericResultAtLocation [Line: 1861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1861] - GenericResultAtLocation [Line: 2273]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2273] - GenericResultAtLocation [Line: 2321]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2321] - GenericResultAtLocation [Line: 2330]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2330] - GenericResultAtLocation [Line: 2552]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2552] - GenericResultAtLocation [Line: 2569]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2569] - GenericResultAtLocation [Line: 2674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2674] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2326]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2326). Cancelled while NwaCegarLoop was constructing difference of abstraction (117954states) and FLOYD_HOARE automaton (currently 24 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (115643 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.7s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 37.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25077 SdHoareTripleChecker+Valid, 25.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24828 mSDsluCounter, 25974 SdHoareTripleChecker+Invalid, 21.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19923 mSDsCounter, 9253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40718 IncrementalHoareTripleChecker+Invalid, 49971 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9253 mSolverCounterUnsat, 6051 mSDtfsCounter, 40718 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1993 GetRequests, 1702 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117954occurred in iteration=20, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 2575 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3802 NumberOfCodeBlocks, 3802 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3923 ConstructedInterpolants, 0 QuantifiedInterpolants, 6125 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6957 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 1120/1146 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown