/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_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:19:11,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:19:11,853 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:19:11,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:19:11,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:19:11,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:19:11,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:19:11,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:19:11,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:19:11,889 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:19:11,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:19:11,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:19:11,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:19:11,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:19:11,891 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:19:11,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:19:11,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:19:11,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:19:11,893 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:19:11,893 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:19:11,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:19:11,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:19:11,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:19:11,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:19:11,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:19:11,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:19:11,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:19:11,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:19:11,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:19:11,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:19:11,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:19:12,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:19:12,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:19:12,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:19:12,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:19:12,130 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:19:12,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2023-12-19 23:19:13,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:19:13,356 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:19:13,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2023-12-19 23:19:13,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96af2d5c7/8ec1885c531d451d9cd7319d7e38ffad/FLAGf4089b2b7 [2023-12-19 23:19:13,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96af2d5c7/8ec1885c531d451d9cd7319d7e38ffad [2023-12-19 23:19:13,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:19:13,384 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:19:13,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:19:13,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:19:13,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:19:13,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:13,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b86b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13, skipping insertion in model container [2023-12-19 23:19:13,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:13,431 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:19:13,667 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_spec4_product32.cil.c[32699,32712] [2023-12-19 23:19:13,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:19:13,798 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:19:13,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-19 23:19:13,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [97] [2023-12-19 23:19:13,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1177] [2023-12-19 23:19:13,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1484] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1493] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1641] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2046] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2073] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2090] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2456] [2023-12-19 23:19:13,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2675] [2023-12-19 23:19:13,849 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_spec4_product32.cil.c[32699,32712] [2023-12-19 23:19:13,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:19:13,948 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:19:13,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13 WrapperNode [2023-12-19 23:19:13,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:19:13,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:19:13,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:19:13,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:19:13,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:13,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,040 INFO L138 Inliner]: procedures = 134, calls = 219, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 972 [2023-12-19 23:19:14,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:19:14,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:19:14,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:19:14,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:19:14,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,070 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]. [2023-12-19 23:19:14,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:19:14,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:19:14,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:19:14,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:19:14,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (1/1) ... [2023-12-19 23:19:14,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:19:14,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:14,128 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) [2023-12-19 23:19:14,135 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 [2023-12-19 23:19:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-19 23:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-19 23:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-19 23:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-19 23:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-19 23:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-19 23:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-19 23:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-19 23:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-19 23:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-19 23:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-19 23:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-19 23:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-19 23:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-19 23:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-19 23:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-19 23:19:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-19 23:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-19 23:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-19 23:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-19 23:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-19 23:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-19 23:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-19 23:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-19 23:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-19 23:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-19 23:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-19 23:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-19 23:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 23:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-19 23:19:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-19 23:19:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-19 23:19:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-19 23:19:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:19:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:19:14,348 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:19:14,352 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:19:15,011 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:19:15,067 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:19:15,067 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 23:19:15,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:19:15 BoogieIcfgContainer [2023-12-19 23:19:15,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:19:15,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:19:15,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:19:15,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:19:15,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:19:13" (1/3) ... [2023-12-19 23:19:15,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5155cd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:19:15, skipping insertion in model container [2023-12-19 23:19:15,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:19:13" (2/3) ... [2023-12-19 23:19:15,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5155cd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:19:15, skipping insertion in model container [2023-12-19 23:19:15,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:19:15" (3/3) ... [2023-12-19 23:19:15,075 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2023-12-19 23:19:15,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:19:15,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:19:15,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:19:15,136 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;@c08c704, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:19:15,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:19:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 397 states, 302 states have (on average 1.6026490066225165) internal successors, (484), 307 states have internal predecessors, (484), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-19 23:19:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 23:19:15,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:15,162 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] [2023-12-19 23:19:15,162 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:15,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1455891148, now seen corresponding path program 1 times [2023-12-19 23:19:15,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:15,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331032720] [2023-12-19 23:19:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:19:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:19:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:19:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 23:19:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:19:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:19:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:19:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:19:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:19:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:19:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:19:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:19:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 23:19:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331032720] [2023-12-19 23:19:15,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331032720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:15,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702795933] [2023-12-19 23:19:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:15,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:15,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:15,679 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) [2023-12-19 23:19:15,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:19:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:15,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 23:19:15,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 23:19:15,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:19:15,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702795933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:15,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:19:15,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-19 23:19:15,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789928051] [2023-12-19 23:19:15,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:15,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:19:15,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:19:16,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:19:16,005 INFO L87 Difference]: Start difference. First operand has 397 states, 302 states have (on average 1.6026490066225165) internal successors, (484), 307 states have internal predecessors, (484), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:16,108 INFO L93 Difference]: Finished difference Result 610 states and 927 transitions. [2023-12-19 23:19:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:19:16,120 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 110 [2023-12-19 23:19:16,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:16,130 INFO L225 Difference]: With dead ends: 610 [2023-12-19 23:19:16,130 INFO L226 Difference]: Without dead ends: 394 [2023-12-19 23:19:16,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:19:16,138 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:16,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:19:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-19 23:19:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2023-12-19 23:19:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 300 states have (on average 1.59) internal successors, (477), 304 states have internal predecessors, (477), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 23:19:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 606 transitions. [2023-12-19 23:19:16,188 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 606 transitions. Word has length 110 [2023-12-19 23:19:16,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:16,189 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 606 transitions. [2023-12-19 23:19:16,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 606 transitions. [2023-12-19 23:19:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 23:19:16,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:16,194 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] [2023-12-19 23:19:16,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:16,401 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 [2023-12-19 23:19:16,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:16,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash 404477880, now seen corresponding path program 1 times [2023-12-19 23:19:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:16,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084369741] [2023-12-19 23:19:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:19:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:19:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:19:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 23:19:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:19:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:19:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:19:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:19:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:19:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:19:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:19:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:19:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 23:19:16,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:16,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084369741] [2023-12-19 23:19:16,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084369741] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:16,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865479529] [2023-12-19 23:19:16,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:16,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:16,683 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) [2023-12-19 23:19:16,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:19:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:16,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 23:19:16,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-19 23:19:16,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:19:16,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865479529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:16,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:19:16,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:19:16,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582353956] [2023-12-19 23:19:16,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:16,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:19:16,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:19:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:19:16,972 INFO L87 Difference]: Start difference. First operand 394 states and 606 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:17,043 INFO L93 Difference]: Finished difference Result 606 states and 911 transitions. [2023-12-19 23:19:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:19:17,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 111 [2023-12-19 23:19:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:17,050 INFO L225 Difference]: With dead ends: 606 [2023-12-19 23:19:17,051 INFO L226 Difference]: Without dead ends: 396 [2023-12-19 23:19:17,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:19:17,056 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 0 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:17,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1183 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:19:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-19 23:19:17,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2023-12-19 23:19:17,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 302 states have (on average 1.586092715231788) internal successors, (479), 306 states have internal predecessors, (479), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 23:19:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 608 transitions. [2023-12-19 23:19:17,087 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 608 transitions. Word has length 111 [2023-12-19 23:19:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:17,087 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 608 transitions. [2023-12-19 23:19:17,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 608 transitions. [2023-12-19 23:19:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 23:19:17,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:17,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:17,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:17,297 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 [2023-12-19 23:19:17,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:17,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:17,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1052312599, now seen corresponding path program 1 times [2023-12-19 23:19:17,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:17,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027210869] [2023-12-19 23:19:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:19:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:19:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:19:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:19:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:19:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:19:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:19:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:19:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:19:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 23:19:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 23:19:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 23:19:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 23:19:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027210869] [2023-12-19 23:19:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027210869] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746134106] [2023-12-19 23:19:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:17,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:17,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:17,505 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) [2023-12-19 23:19:17,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:19:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:17,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:19:17,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-19 23:19:17,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:19:17,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746134106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:17,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:19:17,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:19:17,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564912146] [2023-12-19 23:19:17,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:17,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:19:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:19:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:19:17,790 INFO L87 Difference]: Start difference. First operand 396 states and 608 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:17,840 INFO L93 Difference]: Finished difference Result 840 states and 1308 transitions. [2023-12-19 23:19:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:19:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2023-12-19 23:19:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:17,843 INFO L225 Difference]: With dead ends: 840 [2023-12-19 23:19:17,844 INFO L226 Difference]: Without dead ends: 466 [2023-12-19 23:19:17,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:19:17,847 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 129 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:17,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1152 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:19:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-12-19 23:19:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2023-12-19 23:19:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 353 states have (on average 1.6033994334277621) internal successors, (566), 357 states have internal predecessors, (566), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-19 23:19:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 723 transitions. [2023-12-19 23:19:17,880 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 723 transitions. Word has length 136 [2023-12-19 23:19:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:17,881 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 723 transitions. [2023-12-19 23:19:17,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 723 transitions. [2023-12-19 23:19:17,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 23:19:17,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:17,886 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:19:17,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:18,094 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 [2023-12-19 23:19:18,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:18,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash -299658486, now seen corresponding path program 1 times [2023-12-19 23:19:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954498674] [2023-12-19 23:19:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:19:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:19:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:19:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:19:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:19:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:19:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:19:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:19:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:19:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:19:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:19:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:19:18,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954498674] [2023-12-19 23:19:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954498674] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225860703] [2023-12-19 23:19:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:18,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:18,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:18,272 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) [2023-12-19 23:19:18,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:19:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:19:18,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:19:18,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:19:18,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225860703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:18,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:19:18,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-19 23:19:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28718334] [2023-12-19 23:19:18,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:18,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:19:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:18,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:19:18,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:19:18,592 INFO L87 Difference]: Start difference. First operand 461 states and 723 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:18,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:18,675 INFO L93 Difference]: Finished difference Result 917 states and 1440 transitions. [2023-12-19 23:19:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:19:18,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2023-12-19 23:19:18,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:18,679 INFO L225 Difference]: With dead ends: 917 [2023-12-19 23:19:18,679 INFO L226 Difference]: Without dead ends: 463 [2023-12-19 23:19:18,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:18,682 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 8 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:18,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2321 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:19:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-19 23:19:18,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2023-12-19 23:19:18,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 354 states have (on average 1.6016949152542372) internal successors, (567), 359 states have internal predecessors, (567), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2023-12-19 23:19:18,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 726 transitions. [2023-12-19 23:19:18,695 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 726 transitions. Word has length 119 [2023-12-19 23:19:18,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:18,696 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 726 transitions. [2023-12-19 23:19:18,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 726 transitions. [2023-12-19 23:19:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 23:19:18,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:18,698 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:19:18,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:18,904 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 [2023-12-19 23:19:18,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:18,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 287630294, now seen corresponding path program 1 times [2023-12-19 23:19:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293809411] [2023-12-19 23:19:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:18,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 23:19:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 23:19:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:19:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:19:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:19:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:19:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:19:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:19:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 23:19:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:19:19,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:19,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293809411] [2023-12-19 23:19:19,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293809411] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:19,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40233376] [2023-12-19 23:19:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:19,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:19,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:19,081 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) [2023-12-19 23:19:19,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:19:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 23:19:19,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:19:19,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:19:19,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40233376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:19,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:19:19,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-19 23:19:19,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753025910] [2023-12-19 23:19:19,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:19,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:19:19,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:19:19,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:19:19,354 INFO L87 Difference]: Start difference. First operand 463 states and 726 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:19,457 INFO L93 Difference]: Finished difference Result 919 states and 1445 transitions. [2023-12-19 23:19:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:19:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2023-12-19 23:19:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:19,459 INFO L225 Difference]: With dead ends: 919 [2023-12-19 23:19:19,459 INFO L226 Difference]: Without dead ends: 465 [2023-12-19 23:19:19,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:19:19,461 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 8 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:19,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2307 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:19:19,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2023-12-19 23:19:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2023-12-19 23:19:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 355 states have (on average 1.6) internal successors, (568), 361 states have internal predecessors, (568), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2023-12-19 23:19:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 732 transitions. [2023-12-19 23:19:19,481 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 732 transitions. Word has length 120 [2023-12-19 23:19:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:19,481 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 732 transitions. [2023-12-19 23:19:19,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:19,481 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 732 transitions. [2023-12-19 23:19:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 23:19:19,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:19,483 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] [2023-12-19 23:19:19,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:19,688 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 [2023-12-19 23:19:19,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:19,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1399819023, now seen corresponding path program 1 times [2023-12-19 23:19:19,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:19,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592982297] [2023-12-19 23:19:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:19:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 23:19:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:19:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:19:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:19:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:19:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:19:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:19:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 23:19:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 23:19:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:19:19,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592982297] [2023-12-19 23:19:19,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592982297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:19,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:19,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:19:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570289887] [2023-12-19 23:19:19,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:19,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:19:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:19:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:19:19,857 INFO L87 Difference]: Start difference. First operand 465 states and 732 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:21,514 INFO L93 Difference]: Finished difference Result 1016 states and 1632 transitions. [2023-12-19 23:19:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:19:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 121 [2023-12-19 23:19:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:21,517 INFO L225 Difference]: With dead ends: 1016 [2023-12-19 23:19:21,518 INFO L226 Difference]: Without dead ends: 570 [2023-12-19 23:19:21,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:19:21,520 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1360 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:21,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1192 Invalid, 3069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:19:21,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-19 23:19:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 465. [2023-12-19 23:19:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 355 states have (on average 1.6) internal successors, (568), 361 states have internal predecessors, (568), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2023-12-19 23:19:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 731 transitions. [2023-12-19 23:19:21,548 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 731 transitions. Word has length 121 [2023-12-19 23:19:21,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:21,548 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 731 transitions. [2023-12-19 23:19:21,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 731 transitions. [2023-12-19 23:19:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-19 23:19:21,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:21,550 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] [2023-12-19 23:19:21,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:19:21,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:21,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1219296505, now seen corresponding path program 2 times [2023-12-19 23:19:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:21,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393866318] [2023-12-19 23:19:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:19:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:19:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:19:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:19:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:19:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:19:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:19:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:19:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 23:19:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:19:21,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:21,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393866318] [2023-12-19 23:19:21,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393866318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:21,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:21,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:19:21,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954827009] [2023-12-19 23:19:21,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:21,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:19:21,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:21,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:19:21,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:19:21,694 INFO L87 Difference]: Start difference. First operand 465 states and 731 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:23,273 INFO L93 Difference]: Finished difference Result 1018 states and 1635 transitions. [2023-12-19 23:19:23,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:19:23,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2023-12-19 23:19:23,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:23,277 INFO L225 Difference]: With dead ends: 1018 [2023-12-19 23:19:23,277 INFO L226 Difference]: Without dead ends: 572 [2023-12-19 23:19:23,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:19:23,279 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1352 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:23,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1194 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:19:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-19 23:19:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 467. [2023-12-19 23:19:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 356 states have (on average 1.598314606741573) internal successors, (569), 363 states have internal predecessors, (569), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2023-12-19 23:19:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 734 transitions. [2023-12-19 23:19:23,304 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 734 transitions. Word has length 122 [2023-12-19 23:19:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:23,305 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 734 transitions. [2023-12-19 23:19:23,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 23:19:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 734 transitions. [2023-12-19 23:19:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-19 23:19:23,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:23,307 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] [2023-12-19 23:19:23,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:19:23,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:23,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash -638421996, now seen corresponding path program 1 times [2023-12-19 23:19:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942390264] [2023-12-19 23:19:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:19:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:19:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:19:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:19:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:19:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:19:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 23:19:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 23:19:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:19:23,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:23,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942390264] [2023-12-19 23:19:23,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942390264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:23,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:23,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:19:23,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164958436] [2023-12-19 23:19:23,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:23,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:19:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:23,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:19:23,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:19:23,514 INFO L87 Difference]: Start difference. First operand 467 states and 734 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-19 23:19:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:25,927 INFO L93 Difference]: Finished difference Result 1016 states and 1630 transitions. [2023-12-19 23:19:25,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:19:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 123 [2023-12-19 23:19:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:25,931 INFO L225 Difference]: With dead ends: 1016 [2023-12-19 23:19:25,931 INFO L226 Difference]: Without dead ends: 572 [2023-12-19 23:19:25,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:19:25,933 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1362 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4435 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 4908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 4435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:25,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 1653 Invalid, 4908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 4435 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 23:19:25,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-19 23:19:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 467. [2023-12-19 23:19:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 356 states have (on average 1.598314606741573) internal successors, (569), 363 states have internal predecessors, (569), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2023-12-19 23:19:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 733 transitions. [2023-12-19 23:19:25,959 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 733 transitions. Word has length 123 [2023-12-19 23:19:25,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:25,959 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 733 transitions. [2023-12-19 23:19:25,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-19 23:19:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 733 transitions. [2023-12-19 23:19:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-19 23:19:25,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:25,961 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] [2023-12-19 23:19:25,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:19:25,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:25,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1237808725, now seen corresponding path program 2 times [2023-12-19 23:19:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:25,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565348778] [2023-12-19 23:19:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:19:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:19:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:19:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:19:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:19:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:19:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:19:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 23:19:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 23:19:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:19:26,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:26,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565348778] [2023-12-19 23:19:26,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565348778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:26,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:26,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:19:26,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223808809] [2023-12-19 23:19:26,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:26,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:19:26,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:26,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:19:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:19:26,160 INFO L87 Difference]: Start difference. First operand 467 states and 733 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-19 23:19:28,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:28,331 INFO L93 Difference]: Finished difference Result 1018 states and 1636 transitions. [2023-12-19 23:19:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:19:28,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2023-12-19 23:19:28,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:28,335 INFO L225 Difference]: With dead ends: 1018 [2023-12-19 23:19:28,335 INFO L226 Difference]: Without dead ends: 574 [2023-12-19 23:19:28,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:19:28,337 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1357 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4469 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 4943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 4469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:28,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 1653 Invalid, 4943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 4469 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 23:19:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-19 23:19:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 469. [2023-12-19 23:19:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 357 states have (on average 1.596638655462185) internal successors, (570), 365 states have internal predecessors, (570), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2023-12-19 23:19:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 739 transitions. [2023-12-19 23:19:28,358 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 739 transitions. Word has length 124 [2023-12-19 23:19:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:28,358 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 739 transitions. [2023-12-19 23:19:28,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-19 23:19:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 739 transitions. [2023-12-19 23:19:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 23:19:28,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:28,360 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:28,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:19:28,360 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:28,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1503347968, now seen corresponding path program 1 times [2023-12-19 23:19:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298644183] [2023-12-19 23:19:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:19:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:19:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:19:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:19:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:19:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:19:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:19:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 23:19:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-19 23:19:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 23:19:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-19 23:19:28,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:28,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298644183] [2023-12-19 23:19:28,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298644183] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:19:28,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244950088] [2023-12-19 23:19:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:28,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:19:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:19:28,523 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) [2023-12-19 23:19:28,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 23:19:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:28,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:19:28,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:19:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:28,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:19:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244950088] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:19:28,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:19:28,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-19 23:19:28,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134473473] [2023-12-19 23:19:28,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:19:28,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 23:19:28,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:28,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 23:19:28,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:19:28,890 INFO L87 Difference]: Start difference. First operand 469 states and 739 transitions. Second operand has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-19 23:19:31,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:31,419 INFO L93 Difference]: Finished difference Result 1437 states and 2412 transitions. [2023-12-19 23:19:31,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 23:19:31,420 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 143 [2023-12-19 23:19:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:31,424 INFO L225 Difference]: With dead ends: 1437 [2023-12-19 23:19:31,425 INFO L226 Difference]: Without dead ends: 994 [2023-12-19 23:19:31,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-19 23:19:31,427 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 2858 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 4841 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 5756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 4841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:31,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 1857 Invalid, 5756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 4841 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 23:19:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-12-19 23:19:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 874. [2023-12-19 23:19:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 683 states have (on average 1.644216691068814) internal successors, (1123), 691 states have internal predecessors, (1123), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2023-12-19 23:19:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1460 transitions. [2023-12-19 23:19:31,467 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1460 transitions. Word has length 143 [2023-12-19 23:19:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1460 transitions. [2023-12-19 23:19:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-19 23:19:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1460 transitions. [2023-12-19 23:19:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 23:19:31,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:31,470 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] [2023-12-19 23:19:31,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 23:19:31,677 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 [2023-12-19 23:19:31,677 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:31,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash -37050582, now seen corresponding path program 1 times [2023-12-19 23:19:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:31,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434626451] [2023-12-19 23:19:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:31,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:19:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:19:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:19:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:19:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:19:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:19:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 23:19:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 23:19:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 23:19:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:31,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:31,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434626451] [2023-12-19 23:19:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434626451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:31,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:31,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335498193] [2023-12-19 23:19:31,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:31,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:31,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:31,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:31,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:31,763 INFO L87 Difference]: Start difference. First operand 874 states and 1460 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:33,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:33,016 INFO L93 Difference]: Finished difference Result 2172 states and 3731 transitions. [2023-12-19 23:19:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2023-12-19 23:19:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:33,021 INFO L225 Difference]: With dead ends: 2172 [2023-12-19 23:19:33,021 INFO L226 Difference]: Without dead ends: 1366 [2023-12-19 23:19:33,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:33,024 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1469 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:33,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 889 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2023-12-19 23:19:33,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1256. [2023-12-19 23:19:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 986 states have (on average 1.658215010141988) internal successors, (1635), 994 states have internal predecessors, (1635), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2023-12-19 23:19:33,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2140 transitions. [2023-12-19 23:19:33,066 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2140 transitions. Word has length 129 [2023-12-19 23:19:33,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:33,066 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 2140 transitions. [2023-12-19 23:19:33,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2140 transitions. [2023-12-19 23:19:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-19 23:19:33,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:33,071 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] [2023-12-19 23:19:33,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 23:19:33,071 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:33,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1029874567, now seen corresponding path program 1 times [2023-12-19 23:19:33,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:33,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255970402] [2023-12-19 23:19:33,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:33,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:19:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:19:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:19:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:19:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:19:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 23:19:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 23:19:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 23:19:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:33,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255970402] [2023-12-19 23:19:33,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255970402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:33,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:33,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157533406] [2023-12-19 23:19:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:33,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:33,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:33,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:33,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:33,153 INFO L87 Difference]: Start difference. First operand 1256 states and 2140 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:34,424 INFO L93 Difference]: Finished difference Result 3123 states and 5417 transitions. [2023-12-19 23:19:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:34,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2023-12-19 23:19:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:34,463 INFO L225 Difference]: With dead ends: 3123 [2023-12-19 23:19:34,463 INFO L226 Difference]: Without dead ends: 1985 [2023-12-19 23:19:34,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:34,466 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1467 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:34,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 881 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2023-12-19 23:19:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1875. [2023-12-19 23:19:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1486 states have (on average 1.6655450874831763) internal successors, (2475), 1494 states have internal predecessors, (2475), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2023-12-19 23:19:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 3218 transitions. [2023-12-19 23:19:34,529 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 3218 transitions. Word has length 130 [2023-12-19 23:19:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:34,530 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 3218 transitions. [2023-12-19 23:19:34,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 3218 transitions. [2023-12-19 23:19:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 23:19:34,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:34,537 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] [2023-12-19 23:19:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:19:34,537 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:34,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1784088936, now seen corresponding path program 1 times [2023-12-19 23:19:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:34,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76123436] [2023-12-19 23:19:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:19:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:19:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:19:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:19:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:19:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 23:19:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 23:19:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-19 23:19:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76123436] [2023-12-19 23:19:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76123436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:34,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:34,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745609626] [2023-12-19 23:19:34,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:34,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:34,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:34,610 INFO L87 Difference]: Start difference. First operand 1875 states and 3218 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:35,841 INFO L93 Difference]: Finished difference Result 4563 states and 7988 transitions. [2023-12-19 23:19:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:35,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2023-12-19 23:19:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:35,852 INFO L225 Difference]: With dead ends: 4563 [2023-12-19 23:19:35,852 INFO L226 Difference]: Without dead ends: 2934 [2023-12-19 23:19:35,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:35,856 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1471 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:35,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 871 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2023-12-19 23:19:35,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2824. [2023-12-19 23:19:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2273 states have (on average 1.6717993840739112) internal successors, (3800), 2281 states have internal predecessors, (3800), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2023-12-19 23:19:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 4883 transitions. [2023-12-19 23:19:35,944 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 4883 transitions. Word has length 131 [2023-12-19 23:19:35,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:35,945 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 4883 transitions. [2023-12-19 23:19:35,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 4883 transitions. [2023-12-19 23:19:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 23:19:35,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:35,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:35,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 23:19:35,956 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:35,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash 910485903, now seen corresponding path program 1 times [2023-12-19 23:19:35,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:35,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587968829] [2023-12-19 23:19:35,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:35,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:19:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:19:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:19:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:19:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:19:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 23:19:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 23:19:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-19 23:19:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 23:19:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 23:19:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:36,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:36,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587968829] [2023-12-19 23:19:36,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587968829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:36,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:36,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:36,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59319083] [2023-12-19 23:19:36,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:36,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:36,039 INFO L87 Difference]: Start difference. First operand 2824 states and 4883 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:37,389 INFO L93 Difference]: Finished difference Result 6835 states and 12056 transitions. [2023-12-19 23:19:37,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:37,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2023-12-19 23:19:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:37,417 INFO L225 Difference]: With dead ends: 6835 [2023-12-19 23:19:37,417 INFO L226 Difference]: Without dead ends: 4466 [2023-12-19 23:19:37,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:37,425 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1463 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:37,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 873 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:37,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2023-12-19 23:19:37,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4356. [2023-12-19 23:19:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 3560 states have (on average 1.6764044943820224) internal successors, (5968), 3568 states have internal predecessors, (5968), 763 states have call successors, (763), 28 states have call predecessors, (763), 32 states have return successors, (836), 761 states have call predecessors, (836), 762 states have call successors, (836) [2023-12-19 23:19:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 7567 transitions. [2023-12-19 23:19:37,568 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 7567 transitions. Word has length 150 [2023-12-19 23:19:37,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:37,569 INFO L495 AbstractCegarLoop]: Abstraction has 4356 states and 7567 transitions. [2023-12-19 23:19:37,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 7567 transitions. [2023-12-19 23:19:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 23:19:37,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:37,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 23:19:37,583 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:37,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash 502607419, now seen corresponding path program 1 times [2023-12-19 23:19:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:37,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680114331] [2023-12-19 23:19:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:19:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:19:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:19:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:19:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:19:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 23:19:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 23:19:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 23:19:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 23:19:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 23:19:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-19 23:19:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:37,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:37,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680114331] [2023-12-19 23:19:37,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680114331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:37,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:37,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299396913] [2023-12-19 23:19:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:37,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:37,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:37,693 INFO L87 Difference]: Start difference. First operand 4356 states and 7567 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:39,058 INFO L93 Difference]: Finished difference Result 10888 states and 19267 transitions. [2023-12-19 23:19:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:39,059 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2023-12-19 23:19:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:39,091 INFO L225 Difference]: With dead ends: 10888 [2023-12-19 23:19:39,092 INFO L226 Difference]: Without dead ends: 7226 [2023-12-19 23:19:39,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:39,103 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1461 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:39,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 903 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:39,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2023-12-19 23:19:39,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 7116. [2023-12-19 23:19:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7116 states, 5827 states have (on average 1.6722155483095933) internal successors, (9744), 5835 states have internal predecessors, (9744), 1256 states have call successors, (1256), 28 states have call predecessors, (1256), 32 states have return successors, (1373), 1254 states have call predecessors, (1373), 1255 states have call successors, (1373) [2023-12-19 23:19:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7116 states to 7116 states and 12373 transitions. [2023-12-19 23:19:39,401 INFO L78 Accepts]: Start accepts. Automaton has 7116 states and 12373 transitions. Word has length 151 [2023-12-19 23:19:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:39,401 INFO L495 AbstractCegarLoop]: Abstraction has 7116 states and 12373 transitions. [2023-12-19 23:19:39,402 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7116 states and 12373 transitions. [2023-12-19 23:19:39,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 23:19:39,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:39,423 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] [2023-12-19 23:19:39,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 23:19:39,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:39,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1472860436, now seen corresponding path program 1 times [2023-12-19 23:19:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975378298] [2023-12-19 23:19:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:19:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:19:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:19:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:19:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:19:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:19:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 23:19:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 23:19:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 23:19:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:39,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:39,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975378298] [2023-12-19 23:19:39,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975378298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:39,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:39,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:39,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080468005] [2023-12-19 23:19:39,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:39,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:39,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:39,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:39,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:39,504 INFO L87 Difference]: Start difference. First operand 7116 states and 12373 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:40,977 INFO L93 Difference]: Finished difference Result 18091 states and 32014 transitions. [2023-12-19 23:19:40,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:40,977 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2023-12-19 23:19:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:41,016 INFO L225 Difference]: With dead ends: 18091 [2023-12-19 23:19:41,017 INFO L226 Difference]: Without dead ends: 12055 [2023-12-19 23:19:41,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:41,035 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1462 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:41,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 874 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12055 states. [2023-12-19 23:19:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12055 to 11945. [2023-12-19 23:19:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 9834 states have (on average 1.6722595078299776) internal successors, (16445), 9842 states have internal predecessors, (16445), 2078 states have call successors, (2078), 28 states have call predecessors, (2078), 32 states have return successors, (2273), 2076 states have call predecessors, (2273), 2077 states have call successors, (2273) [2023-12-19 23:19:41,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 20796 transitions. [2023-12-19 23:19:41,477 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 20796 transitions. Word has length 134 [2023-12-19 23:19:41,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:41,478 INFO L495 AbstractCegarLoop]: Abstraction has 11945 states and 20796 transitions. [2023-12-19 23:19:41,478 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 20796 transitions. [2023-12-19 23:19:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 23:19:41,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:41,510 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] [2023-12-19 23:19:41,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 23:19:41,510 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:41,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:41,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1230066454, now seen corresponding path program 1 times [2023-12-19 23:19:41,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:41,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126585502] [2023-12-19 23:19:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:19:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:19:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:19:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:19:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:19:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:19:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 23:19:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 23:19:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 23:19:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:41,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126585502] [2023-12-19 23:19:41,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126585502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:41,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:41,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:41,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631095491] [2023-12-19 23:19:41,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:41,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:41,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:41,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:41,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:41,601 INFO L87 Difference]: Start difference. First operand 11945 states and 20796 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:43,173 INFO L93 Difference]: Finished difference Result 28637 states and 50462 transitions. [2023-12-19 23:19:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:43,174 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2023-12-19 23:19:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:43,238 INFO L225 Difference]: With dead ends: 28637 [2023-12-19 23:19:43,238 INFO L226 Difference]: Without dead ends: 18727 [2023-12-19 23:19:43,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:43,267 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1460 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:43,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 854 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 23:19:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18727 states. [2023-12-19 23:19:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18727 to 18617. [2023-12-19 23:19:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18617 states, 15303 states have (on average 1.6489577207083579) internal successors, (25234), 15311 states have internal predecessors, (25234), 3281 states have call successors, (3281), 28 states have call predecessors, (3281), 32 states have return successors, (3620), 3279 states have call predecessors, (3620), 3280 states have call successors, (3620) [2023-12-19 23:19:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18617 states to 18617 states and 32135 transitions. [2023-12-19 23:19:43,981 INFO L78 Accepts]: Start accepts. Automaton has 18617 states and 32135 transitions. Word has length 135 [2023-12-19 23:19:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:43,981 INFO L495 AbstractCegarLoop]: Abstraction has 18617 states and 32135 transitions. [2023-12-19 23:19:43,981 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 18617 states and 32135 transitions. [2023-12-19 23:19:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 23:19:44,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:44,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:44,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 23:19:44,008 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:44,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1155671724, now seen corresponding path program 1 times [2023-12-19 23:19:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:44,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783069038] [2023-12-19 23:19:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:19:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:19:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:19:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:19:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:19:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:19:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 23:19:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 23:19:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 23:19:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 23:19:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 23:19:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-19 23:19:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:44,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:44,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783069038] [2023-12-19 23:19:44,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783069038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:44,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:44,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:44,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250766477] [2023-12-19 23:19:44,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:44,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:44,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:44,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:44,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:44,102 INFO L87 Difference]: Start difference. First operand 18617 states and 32135 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:46,184 INFO L93 Difference]: Finished difference Result 49270 states and 86581 transitions. [2023-12-19 23:19:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2023-12-19 23:19:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:46,290 INFO L225 Difference]: With dead ends: 49270 [2023-12-19 23:19:46,290 INFO L226 Difference]: Without dead ends: 33308 [2023-12-19 23:19:46,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:46,317 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1458 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:46,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 876 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 23:19:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33308 states. [2023-12-19 23:19:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33308 to 33198. [2023-12-19 23:19:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33198 states, 27434 states have (on average 1.6461325362688635) internal successors, (45160), 27442 states have internal predecessors, (45160), 5731 states have call successors, (5731), 28 states have call predecessors, (5731), 32 states have return successors, (6344), 5729 states have call predecessors, (6344), 5730 states have call successors, (6344) [2023-12-19 23:19:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33198 states to 33198 states and 57235 transitions. [2023-12-19 23:19:47,414 INFO L78 Accepts]: Start accepts. Automaton has 33198 states and 57235 transitions. Word has length 154 [2023-12-19 23:19:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:47,414 INFO L495 AbstractCegarLoop]: Abstraction has 33198 states and 57235 transitions. [2023-12-19 23:19:47,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:47,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33198 states and 57235 transitions. [2023-12-19 23:19:47,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-19 23:19:47,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:47,449 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] [2023-12-19 23:19:47,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 23:19:47,449 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:47,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash -469139568, now seen corresponding path program 1 times [2023-12-19 23:19:47,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336260511] [2023-12-19 23:19:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:19:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:19:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:19:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:19:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:19:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:19:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 23:19:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 23:19:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-19 23:19:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:19:47,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336260511] [2023-12-19 23:19:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336260511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:47,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156564498] [2023-12-19 23:19:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:47,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:47,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:47,524 INFO L87 Difference]: Start difference. First operand 33198 states and 57235 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:50,172 INFO L93 Difference]: Finished difference Result 90572 states and 158410 transitions. [2023-12-19 23:19:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:50,173 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-12-19 23:19:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:50,375 INFO L225 Difference]: With dead ends: 90572 [2023-12-19 23:19:50,375 INFO L226 Difference]: Without dead ends: 60920 [2023-12-19 23:19:50,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:50,444 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1456 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:50,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 886 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 23:19:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60920 states. [2023-12-19 23:19:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60920 to 60810. [2023-12-19 23:19:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60810 states, 50533 states have (on average 1.6422931549680406) internal successors, (82990), 50541 states have internal predecessors, (82990), 10244 states have call successors, (10244), 28 states have call predecessors, (10244), 32 states have return successors, (11389), 10242 states have call predecessors, (11389), 10243 states have call successors, (11389) [2023-12-19 23:19:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60810 states to 60810 states and 104623 transitions. [2023-12-19 23:19:52,414 INFO L78 Accepts]: Start accepts. Automaton has 60810 states and 104623 transitions. Word has length 137 [2023-12-19 23:19:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:19:52,415 INFO L495 AbstractCegarLoop]: Abstraction has 60810 states and 104623 transitions. [2023-12-19 23:19:52,415 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:19:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 60810 states and 104623 transitions. [2023-12-19 23:19:52,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-19 23:19:52,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:19:52,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:19:52,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 23:19:52,787 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:19:52,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:19:52,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1425388, now seen corresponding path program 1 times [2023-12-19 23:19:52,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:19:52,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134320897] [2023-12-19 23:19:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:19:52,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:19:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:19:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:19:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:19:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:19:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:19:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:19:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:19:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:19:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:19:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:19:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:19:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:19:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:19:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 23:19:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 23:19:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 23:19:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-19 23:19:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 23:19:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:19:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 23:19:52,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:19:52,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134320897] [2023-12-19 23:19:52,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134320897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:19:52,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:19:52,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:19:52,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230470767] [2023-12-19 23:19:52,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:19:52,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:19:52,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:19:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:19:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:19:52,877 INFO L87 Difference]: Start difference. First operand 60810 states and 104623 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:19:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:19:56,166 INFO L93 Difference]: Finished difference Result 113924 states and 199763 transitions. [2023-12-19 23:19:56,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:19:56,167 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2023-12-19 23:19:56,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:19:56,549 INFO L225 Difference]: With dead ends: 113924 [2023-12-19 23:19:56,549 INFO L226 Difference]: Without dead ends: 113714 [2023-12-19 23:19:56,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:19:56,591 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1457 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:19:56,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 872 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 23:19:56,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113714 states. [2023-12-19 23:20:00,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113714 to 113604. [2023-12-19 23:20:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113604 states, 94959 states have (on average 1.637327688792005) internal successors, (155479), 94967 states have internal predecessors, (155479), 18612 states have call successors, (18612), 28 states have call predecessors, (18612), 32 states have return successors, (20803), 18610 states have call predecessors, (20803), 18611 states have call successors, (20803) [2023-12-19 23:20:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113604 states to 113604 states and 194894 transitions. [2023-12-19 23:20:00,742 INFO L78 Accepts]: Start accepts. Automaton has 113604 states and 194894 transitions. Word has length 156 [2023-12-19 23:20:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:20:00,742 INFO L495 AbstractCegarLoop]: Abstraction has 113604 states and 194894 transitions. [2023-12-19 23:20:00,742 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 23:20:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 113604 states and 194894 transitions. [2023-12-19 23:20:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 23:20:00,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:20:00,969 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] [2023-12-19 23:20:00,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 23:20:00,970 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:20:00,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:20:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1257139695, now seen corresponding path program 1 times [2023-12-19 23:20:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:20:00,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667951760] [2023-12-19 23:20:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:00,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:20:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:20:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:20:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:20:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:20:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:20:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:20:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:20:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:20:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:20:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:20:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:20:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 23:20:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 23:20:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-19 23:20:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:20:01,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:20:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667951760] [2023-12-19 23:20:01,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667951760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:20:01,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:20:01,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-19 23:20:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686806594] [2023-12-19 23:20:01,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:20:01,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-19 23:20:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:20:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-19 23:20:01,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2023-12-19 23:20:01,333 INFO L87 Difference]: Start difference. First operand 113604 states and 194894 transitions. Second operand has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-19 23:20:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:20:12,122 INFO L93 Difference]: Finished difference Result 226846 states and 401201 transitions. [2023-12-19 23:20:12,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-19 23:20:12,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 139 [2023-12-19 23:20:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:20:13,249 INFO L225 Difference]: With dead ends: 226846 [2023-12-19 23:20:13,250 INFO L226 Difference]: Without dead ends: 226641 [2023-12-19 23:20:13,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=961, Invalid=4441, Unknown=0, NotChecked=0, Total=5402 [2023-12-19 23:20:13,345 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 5222 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 9498 mSolverCounterSat, 1852 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 11350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1852 IncrementalHoareTripleChecker+Valid, 9498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-19 23:20:13,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 3128 Invalid, 11350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1852 Valid, 9498 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-19 23:20:13,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226641 states. [2023-12-19 23:20:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226641 to 226254. [2023-12-19 23:20:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226254 states, 189161 states have (on average 1.6379221932639392) internal successors, (309831), 189071 states have internal predecessors, (309831), 37006 states have call successors, (37006), 75 states have call predecessors, (37006), 86 states have return successors, (44687), 37115 states have call predecessors, (44687), 37003 states have call successors, (44687) [2023-12-19 23:20:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226254 states to 226254 states and 391524 transitions. [2023-12-19 23:20:21,900 INFO L78 Accepts]: Start accepts. Automaton has 226254 states and 391524 transitions. Word has length 139 [2023-12-19 23:20:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:20:21,900 INFO L495 AbstractCegarLoop]: Abstraction has 226254 states and 391524 transitions. [2023-12-19 23:20:21,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-19 23:20:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 226254 states and 391524 transitions. [2023-12-19 23:20:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-19 23:20:22,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:20:22,013 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] [2023-12-19 23:20:22,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 23:20:22,013 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:20:22,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:20:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash 810639293, now seen corresponding path program 1 times [2023-12-19 23:20:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:20:22,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668264215] [2023-12-19 23:20:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:22,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:20:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:20:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:20:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:20:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:20:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:20:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:20:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:20:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:20:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:20:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:20:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:20:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 23:20:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 23:20:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-19 23:20:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:20:22,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:20:22,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668264215] [2023-12-19 23:20:22,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668264215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:20:22,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:20:22,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 23:20:22,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290493834] [2023-12-19 23:20:22,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:20:22,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 23:20:22,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:20:22,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 23:20:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:20:22,233 INFO L87 Difference]: Start difference. First operand 226254 states and 391524 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-19 23:20:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:20:30,710 INFO L93 Difference]: Finished difference Result 227945 states and 400914 transitions. [2023-12-19 23:20:30,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-19 23:20:30,712 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2023-12-19 23:20:30,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:20:31,703 INFO L225 Difference]: With dead ends: 227945 [2023-12-19 23:20:31,703 INFO L226 Difference]: Without dead ends: 227231 [2023-12-19 23:20:31,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=353, Invalid=1453, Unknown=0, NotChecked=0, Total=1806 [2023-12-19 23:20:31,777 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 2471 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 6406 mSolverCounterSat, 965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 7371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 6406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-19 23:20:31,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 2021 Invalid, 7371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [965 Valid, 6406 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-19 23:20:31,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227231 states. [2023-12-19 23:20:39,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227231 to 226612. [2023-12-19 23:20:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226612 states, 189394 states have (on average 1.637633715957211) internal successors, (310158), 189318 states have internal predecessors, (310158), 37123 states have call successors, (37123), 81 states have call predecessors, (37123), 94 states have return successors, (44830), 37228 states have call predecessors, (44830), 37114 states have call successors, (44830) [2023-12-19 23:20:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226612 states to 226612 states and 392111 transitions. [2023-12-19 23:20:41,222 INFO L78 Accepts]: Start accepts. Automaton has 226612 states and 392111 transitions. Word has length 140 [2023-12-19 23:20:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:20:41,222 INFO L495 AbstractCegarLoop]: Abstraction has 226612 states and 392111 transitions. [2023-12-19 23:20:41,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (18), 8 states have call predecessors, (18), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-19 23:20:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 226612 states and 392111 transitions. [2023-12-19 23:20:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-19 23:20:41,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:20:41,334 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] [2023-12-19 23:20:41,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 23:20:41,334 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:20:41,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:20:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 915258059, now seen corresponding path program 1 times [2023-12-19 23:20:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:20:41,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742845591] [2023-12-19 23:20:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:20:41,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:20:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:20:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:20:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:20:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:20:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:20:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:20:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:20:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:20:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:20:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:20:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:20:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:20:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 23:20:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 23:20:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-19 23:20:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:20:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 23:20:41,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:20:41,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742845591] [2023-12-19 23:20:41,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742845591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:20:41,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:20:41,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:20:41,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040698646] [2023-12-19 23:20:41,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:20:41,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:20:41,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:20:41,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:20:41,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:20:41,450 INFO L87 Difference]: Start difference. First operand 226612 states and 392111 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 23:20:52,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:20:52,888 INFO L93 Difference]: Finished difference Result 342854 states and 612233 transitions. [2023-12-19 23:20:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 23:20:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2023-12-19 23:20:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:20:54,549 INFO L225 Difference]: With dead ends: 342854 [2023-12-19 23:20:54,549 INFO L226 Difference]: Without dead ends: 342146 [2023-12-19 23:20:54,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2023-12-19 23:20:54,688 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 3652 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 1238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1238 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 23:20:54,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 1488 Invalid, 5332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1238 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 23:20:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342146 states.