/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:00:51,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:00:51,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 10:00:51,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:00:51,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:00:51,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:00:51,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:00:51,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:00:51,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:00:51,977 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:00:51,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:00:51,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:00:51,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:00:51,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:00:51,979 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:00:51,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:00:51,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:00:51,979 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:00:51,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:00:51,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:00:51,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:00:51,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:00:51,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:00:51,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:00:51,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:00:51,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:00:51,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:00:51,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:00:51,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:00:51,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:00:51,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:00:51,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:00:51,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:00:51,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:00:51,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:00:51,991 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:00:51,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:00:51,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:00:51,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:00:52,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:00:52,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:00:52,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:00:52,253 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:00:52,254 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:00:52,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product20.cil.c [2023-12-21 10:00:53,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:00:53,681 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:00:53,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product20.cil.c [2023-12-21 10:00:53,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5f72649/5515c9b65f5b4242aaa3d7ea98108133/FLAGba6124ec2 [2023-12-21 10:00:53,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5f72649/5515c9b65f5b4242aaa3d7ea98108133 [2023-12-21 10:00:53,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:00:53,737 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:00:53,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:00:53,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:00:53,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:00:53,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:00:53" (1/1) ... [2023-12-21 10:00:53,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9810c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:53, skipping insertion in model container [2023-12-21 10:00:53,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:00:53" (1/1) ... [2023-12-21 10:00:53,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:00:53,983 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_spec8_product20.cil.c[19452,19465] [2023-12-21 10:00:54,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:00:54,104 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:00:54,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [432] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [844] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [853] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1933] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1987] [2023-12-21 10:00:54,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2216] [2023-12-21 10:00:54,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2321] [2023-12-21 10:00:54,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2618] [2023-12-21 10:00:54,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2925] [2023-12-21 10:00:54,134 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_spec8_product20.cil.c[19452,19465] [2023-12-21 10:00:54,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:00:54,190 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:00:54,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54 WrapperNode [2023-12-21 10:00:54,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:00:54,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:00:54,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:00:54,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:00:54,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,240 INFO L138 Inliner]: procedures = 129, calls = 200, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 949 [2023-12-21 10:00:54,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:00:54,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:00:54,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:00:54,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:00:54,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,279 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]. [2023-12-21 10:00:54,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:00:54,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:00:54,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:00:54,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:00:54,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (1/1) ... [2023-12-21 10:00:54,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:00:54,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:54,410 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) [2023-12-21 10:00:54,456 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 [2023-12-21 10:00:54,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-21 10:00:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-21 10:00:54,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-21 10:00:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-21 10:00:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-21 10:00:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-21 10:00:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-21 10:00:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-21 10:00:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 10:00:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 10:00:54,458 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-21 10:00:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-21 10:00:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 10:00:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 10:00:54,459 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 10:00:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 10:00:54,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-21 10:00:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-21 10:00:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 10:00:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 10:00:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 10:00:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-21 10:00:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 10:00:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 10:00:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 10:00:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 10:00:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 10:00:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-21 10:00:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-21 10:00:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:00:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:00:54,665 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:00:54,666 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:00:55,346 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:00:55,380 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:00:55,381 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 10:00:55,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:00:55 BoogieIcfgContainer [2023-12-21 10:00:55,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:00:55,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:00:55,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:00:55,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:00:55,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:00:53" (1/3) ... [2023-12-21 10:00:55,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65963660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:00:55, skipping insertion in model container [2023-12-21 10:00:55,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:00:54" (2/3) ... [2023-12-21 10:00:55,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65963660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:00:55, skipping insertion in model container [2023-12-21 10:00:55,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:00:55" (3/3) ... [2023-12-21 10:00:55,387 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product20.cil.c [2023-12-21 10:00:55,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:00:55,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:00:55,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:00:55,462 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;@18a71eab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:00:55,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:00:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 339 states, 261 states have (on average 1.6360153256704981) internal successors, (427), 266 states have internal predecessors, (427), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 10:00:55,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 10:00:55,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:00:55,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-21 10:00:55,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:00:55,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:00:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash -701032600, now seen corresponding path program 1 times [2023-12-21 10:00:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:00:55,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816910300] [2023-12-21 10:00:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:00:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:00:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:00:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:00:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:00:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:00:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:00:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 10:00:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 10:00:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:00:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:00:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:00:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:00:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 10:00:56,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:00:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816910300] [2023-12-21 10:00:56,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816910300] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:00:56,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186528955] [2023-12-21 10:00:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:56,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:00:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:56,189 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) [2023-12-21 10:00:56,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 10:00:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:56,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 10:00:56,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:00:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:00:56,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:00:56,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186528955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:00:56,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:00:56,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 10:00:56,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490964200] [2023-12-21 10:00:56,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:00:56,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 10:00:56,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:00:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 10:00:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:00:56,515 INFO L87 Difference]: Start difference. First operand has 339 states, 261 states have (on average 1.6360153256704981) internal successors, (427), 266 states have internal predecessors, (427), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:56,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:00:56,617 INFO L93 Difference]: Finished difference Result 494 states and 769 transitions. [2023-12-21 10:00:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 10:00:56,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-21 10:00:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:00:56,636 INFO L225 Difference]: With dead ends: 494 [2023-12-21 10:00:56,636 INFO L226 Difference]: Without dead ends: 336 [2023-12-21 10:00:56,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:00:56,645 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:00:56,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:00:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-21 10:00:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-21 10:00:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 259 states have (on average 1.6216216216216217) internal successors, (420), 263 states have internal predecessors, (420), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-21 10:00:56,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 527 transitions. [2023-12-21 10:00:56,715 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 527 transitions. Word has length 92 [2023-12-21 10:00:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:00:56,716 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 527 transitions. [2023-12-21 10:00:56,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 527 transitions. [2023-12-21 10:00:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 10:00:56,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:00:56,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-21 10:00:56,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 10:00:56,938 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 [2023-12-21 10:00:56,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:00:56,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:00:56,940 INFO L85 PathProgramCache]: Analyzing trace with hash -937617512, now seen corresponding path program 1 times [2023-12-21 10:00:56,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:00:56,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83815193] [2023-12-21 10:00:56,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:56,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:00:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:00:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:00:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:00:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:00:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:00:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:00:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 10:00:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 10:00:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:00:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 10:00:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:00:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 10:00:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 10:00:57,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:00:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83815193] [2023-12-21 10:00:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83815193] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:00:57,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411347006] [2023-12-21 10:00:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:57,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:00:57,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:57,270 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) [2023-12-21 10:00:57,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 10:00:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:57,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 10:00:57,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:00:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:00:57,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:00:57,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411347006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:00:57,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:00:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 10:00:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273503586] [2023-12-21 10:00:57,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:00:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:00:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:00:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:00:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:00:57,574 INFO L87 Difference]: Start difference. First operand 336 states and 527 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:00:57,654 INFO L93 Difference]: Finished difference Result 490 states and 753 transitions. [2023-12-21 10:00:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:00:57,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-21 10:00:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:00:57,658 INFO L225 Difference]: With dead ends: 490 [2023-12-21 10:00:57,658 INFO L226 Difference]: Without dead ends: 338 [2023-12-21 10:00:57,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:00:57,673 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 0 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:00:57,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1027 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:00:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-12-21 10:00:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2023-12-21 10:00:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 261 states have (on average 1.6168582375478928) internal successors, (422), 265 states have internal predecessors, (422), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-21 10:00:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 529 transitions. [2023-12-21 10:00:57,694 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 529 transitions. Word has length 93 [2023-12-21 10:00:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:00:57,696 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 529 transitions. [2023-12-21 10:00:57,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:57,698 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 529 transitions. [2023-12-21 10:00:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 10:00:57,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:00:57,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-21 10:00:57,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 10:00:57,909 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 [2023-12-21 10:00:57,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:00:57,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:00:57,910 INFO L85 PathProgramCache]: Analyzing trace with hash 231243337, now seen corresponding path program 1 times [2023-12-21 10:00:57,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:00:57,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99937188] [2023-12-21 10:00:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:57,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:00:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:00:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:00:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:00:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:00:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:00:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:00:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 10:00:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:00:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:00:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 10:00:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 10:00:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:00:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:00:58,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:00:58,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99937188] [2023-12-21 10:00:58,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99937188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:00:58,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015208982] [2023-12-21 10:00:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:58,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:00:58,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:58,138 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) [2023-12-21 10:00:58,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 10:00:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 10:00:58,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:00:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:00:58,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:00:58,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015208982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:00:58,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:00:58,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 10:00:58,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183408116] [2023-12-21 10:00:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:00:58,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:00:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:00:58,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:00:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:00:58,403 INFO L87 Difference]: Start difference. First operand 338 states and 529 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:00:58,455 INFO L93 Difference]: Finished difference Result 724 states and 1150 transitions. [2023-12-21 10:00:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:00:58,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-21 10:00:58,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:00:58,459 INFO L225 Difference]: With dead ends: 724 [2023-12-21 10:00:58,459 INFO L226 Difference]: Without dead ends: 408 [2023-12-21 10:00:58,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:00:58,464 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 129 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:00:58,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 997 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:00:58,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-12-21 10:00:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 403. [2023-12-21 10:00:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 312 states have (on average 1.6314102564102564) internal successors, (509), 316 states have internal predecessors, (509), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-21 10:00:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 644 transitions. [2023-12-21 10:00:58,487 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 644 transitions. Word has length 100 [2023-12-21 10:00:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:00:58,488 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 644 transitions. [2023-12-21 10:00:58,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:00:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 644 transitions. [2023-12-21 10:00:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 10:00:58,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:00:58,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-21 10:00:58,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 10:00:58,696 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 [2023-12-21 10:00:58,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:00:58,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:00:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1998539829, now seen corresponding path program 1 times [2023-12-21 10:00:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:00:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409847924] [2023-12-21 10:00:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:00:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:00:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:00:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:00:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:00:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:00:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:00:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 10:00:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:00:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:00:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 10:00:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 10:00:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:00:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:58,898 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:00:58,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:00:58,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409847924] [2023-12-21 10:00:58,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409847924] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:00:58,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337892968] [2023-12-21 10:00:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:58,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:00:58,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:58,914 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) [2023-12-21 10:00:58,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 10:00:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 10:00:59,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:00:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:00:59,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:00:59,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337892968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:00:59,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:00:59,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 10:00:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642459184] [2023-12-21 10:00:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:00:59,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:00:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:00:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:00:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:00:59,178 INFO L87 Difference]: Start difference. First operand 403 states and 644 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:00:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:00:59,255 INFO L93 Difference]: Finished difference Result 801 states and 1282 transitions. [2023-12-21 10:00:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:00:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-21 10:00:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:00:59,258 INFO L225 Difference]: With dead ends: 801 [2023-12-21 10:00:59,258 INFO L226 Difference]: Without dead ends: 405 [2023-12-21 10:00:59,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:00:59,261 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 8 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:00:59,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2009 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:00:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-12-21 10:00:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2023-12-21 10:00:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 313 states have (on average 1.6293929712460065) internal successors, (510), 318 states have internal predecessors, (510), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2023-12-21 10:00:59,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 647 transitions. [2023-12-21 10:00:59,280 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 647 transitions. Word has length 101 [2023-12-21 10:00:59,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:00:59,280 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 647 transitions. [2023-12-21 10:00:59,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:00:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 647 transitions. [2023-12-21 10:00:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 10:00:59,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:00:59,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-21 10:00:59,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 10:00:59,498 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 [2023-12-21 10:00:59,499 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:00:59,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:00:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1666608539, now seen corresponding path program 1 times [2023-12-21 10:00:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:00:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278701696] [2023-12-21 10:00:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:00:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:00:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:00:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:00:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:00:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 10:00:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 10:00:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 10:00:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 10:00:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 10:00:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:00:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 10:00:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 10:00:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:00:59,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:00:59,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278701696] [2023-12-21 10:00:59,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278701696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:00:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619513963] [2023-12-21 10:00:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:00:59,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:00:59,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:00:59,701 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) [2023-12-21 10:00:59,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 10:00:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:00:59,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 10:00:59,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:00:59,977 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:00:59,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:00:59,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619513963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:00:59,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:00:59,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 10:00:59,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413341149] [2023-12-21 10:00:59,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:00:59,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:00:59,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:00:59,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:00:59,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 10:00:59,979 INFO L87 Difference]: Start difference. First operand 405 states and 647 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:00,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:00,056 INFO L93 Difference]: Finished difference Result 803 states and 1287 transitions. [2023-12-21 10:01:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:01:00,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-12-21 10:01:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:00,058 INFO L225 Difference]: With dead ends: 803 [2023-12-21 10:01:00,058 INFO L226 Difference]: Without dead ends: 407 [2023-12-21 10:01:00,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 10:01:00,060 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 8 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:00,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1995 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:01:00,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-21 10:01:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2023-12-21 10:01:00,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 314 states have (on average 1.627388535031847) internal successors, (511), 320 states have internal predecessors, (511), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2023-12-21 10:01:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 653 transitions. [2023-12-21 10:01:00,079 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 653 transitions. Word has length 102 [2023-12-21 10:01:00,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:00,079 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 653 transitions. [2023-12-21 10:01:00,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 653 transitions. [2023-12-21 10:01:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 10:01:00,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:00,082 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 10:01:00,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 10:01:00,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:01:00,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:00,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:00,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1431098475, now seen corresponding path program 1 times [2023-12-21 10:01:00,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:00,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222774251] [2023-12-21 10:01:00,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:00,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 10:01:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 10:01:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 10:01:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:01:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:01:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:01:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 10:01:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:01:00,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:00,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222774251] [2023-12-21 10:01:00,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222774251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:00,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:00,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 10:01:00,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250092499] [2023-12-21 10:01:00,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:00,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 10:01:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:00,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 10:01:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:01:00,428 INFO L87 Difference]: Start difference. First operand 407 states and 653 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:01,888 INFO L93 Difference]: Finished difference Result 883 states and 1448 transitions. [2023-12-21 10:01:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 10:01:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2023-12-21 10:01:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:01,892 INFO L225 Difference]: With dead ends: 883 [2023-12-21 10:01:01,892 INFO L226 Difference]: Without dead ends: 495 [2023-12-21 10:01:01,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 10:01:01,894 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1126 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:01,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1193 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 10:01:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-12-21 10:01:01,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 407. [2023-12-21 10:01:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 314 states have (on average 1.627388535031847) internal successors, (511), 320 states have internal predecessors, (511), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2023-12-21 10:01:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 652 transitions. [2023-12-21 10:01:01,916 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 652 transitions. Word has length 103 [2023-12-21 10:01:01,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:01,916 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 652 transitions. [2023-12-21 10:01:01,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 652 transitions. [2023-12-21 10:01:01,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 10:01:01,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:01,918 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 10:01:01,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 10:01:01,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:01,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash -50600157, now seen corresponding path program 2 times [2023-12-21 10:01:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:01,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597367236] [2023-12-21 10:01:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 10:01:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 10:01:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 10:01:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:01:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:01:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 10:01:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 10:01:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:01:02,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:02,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597367236] [2023-12-21 10:01:02,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597367236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:02,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:02,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 10:01:02,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556267489] [2023-12-21 10:01:02,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 10:01:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 10:01:02,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:01:02,045 INFO L87 Difference]: Start difference. First operand 407 states and 652 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:03,420 INFO L93 Difference]: Finished difference Result 885 states and 1451 transitions. [2023-12-21 10:01:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 10:01:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2023-12-21 10:01:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:03,423 INFO L225 Difference]: With dead ends: 885 [2023-12-21 10:01:03,423 INFO L226 Difference]: Without dead ends: 497 [2023-12-21 10:01:03,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 10:01:03,425 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1118 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:03,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1194 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 10:01:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-21 10:01:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 409. [2023-12-21 10:01:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 315 states have (on average 1.6253968253968254) internal successors, (512), 322 states have internal predecessors, (512), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2023-12-21 10:01:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 655 transitions. [2023-12-21 10:01:03,458 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 655 transitions. Word has length 104 [2023-12-21 10:01:03,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:03,458 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 655 transitions. [2023-12-21 10:01:03,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 10:01:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 655 transitions. [2023-12-21 10:01:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 10:01:03,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:03,461 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 10:01:03,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 10:01:03,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:03,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 778743408, now seen corresponding path program 1 times [2023-12-21 10:01:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916818511] [2023-12-21 10:01:03,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:01:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 10:01:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:01:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:01:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 10:01:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 10:01:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:01:03,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:03,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916818511] [2023-12-21 10:01:03,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916818511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:03,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 10:01:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313699029] [2023-12-21 10:01:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:03,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:01:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:03,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:01:03,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:01:03,677 INFO L87 Difference]: Start difference. First operand 409 states and 655 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 10:01:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:05,672 INFO L93 Difference]: Finished difference Result 883 states and 1446 transitions. [2023-12-21 10:01:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 10:01:05,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2023-12-21 10:01:05,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:05,677 INFO L225 Difference]: With dead ends: 883 [2023-12-21 10:01:05,677 INFO L226 Difference]: Without dead ends: 497 [2023-12-21 10:01:05,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 10:01:05,679 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1131 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 4108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:05,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1652 Invalid, 4108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 10:01:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-21 10:01:05,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 409. [2023-12-21 10:01:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 315 states have (on average 1.6253968253968254) internal successors, (512), 322 states have internal predecessors, (512), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2023-12-21 10:01:05,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 654 transitions. [2023-12-21 10:01:05,706 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 654 transitions. Word has length 105 [2023-12-21 10:01:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:05,706 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 654 transitions. [2023-12-21 10:01:05,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 10:01:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 654 transitions. [2023-12-21 10:01:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 10:01:05,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:05,708 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 10:01:05,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 10:01:05,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:05,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash 442885594, now seen corresponding path program 2 times [2023-12-21 10:01:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:05,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85061266] [2023-12-21 10:01:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:05,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:01:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 10:01:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:01:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:01:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:01:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:01:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:01:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85061266] [2023-12-21 10:01:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85061266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:05,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:05,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 10:01:05,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607129812] [2023-12-21 10:01:05,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:05,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:01:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:05,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:01:05,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:01:05,889 INFO L87 Difference]: Start difference. First operand 409 states and 654 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 10:01:07,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:07,940 INFO L93 Difference]: Finished difference Result 885 states and 1452 transitions. [2023-12-21 10:01:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 10:01:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 106 [2023-12-21 10:01:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:07,943 INFO L225 Difference]: With dead ends: 885 [2023-12-21 10:01:07,943 INFO L226 Difference]: Without dead ends: 499 [2023-12-21 10:01:07,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 10:01:07,946 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1124 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 4173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:07,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1653 Invalid, 4173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 10:01:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-21 10:01:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 411. [2023-12-21 10:01:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 316 states have (on average 1.6234177215189873) internal successors, (513), 324 states have internal predecessors, (513), 68 states have call successors, (68), 22 states have call predecessors, (68), 26 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2023-12-21 10:01:07,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 660 transitions. [2023-12-21 10:01:07,964 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 660 transitions. Word has length 106 [2023-12-21 10:01:07,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:07,964 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 660 transitions. [2023-12-21 10:01:07,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 10:01:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 660 transitions. [2023-12-21 10:01:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 10:01:07,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:07,967 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:01:07,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 10:01:07,967 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:07,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash -124189067, now seen corresponding path program 1 times [2023-12-21 10:01:07,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:07,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610893726] [2023-12-21 10:01:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:07,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 10:01:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 10:01:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:01:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 10:01:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:01:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 10:01:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 10:01:08,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610893726] [2023-12-21 10:01:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610893726] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:01:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813538110] [2023-12-21 10:01:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:08,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:01:08,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:01:08,158 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) [2023-12-21 10:01:08,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 10:01:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:08,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 10:01:08,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:01:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:08,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:01:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:08,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813538110] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:01:08,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:01:08,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-21 10:01:08,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866774482] [2023-12-21 10:01:08,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:01:08,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 10:01:08,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 10:01:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 10:01:08,484 INFO L87 Difference]: Start difference. First operand 411 states and 660 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-21 10:01:10,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:10,731 INFO L93 Difference]: Finished difference Result 1304 states and 2228 transitions. [2023-12-21 10:01:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 10:01:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 107 [2023-12-21 10:01:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:10,736 INFO L225 Difference]: With dead ends: 1304 [2023-12-21 10:01:10,736 INFO L226 Difference]: Without dead ends: 919 [2023-12-21 10:01:10,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-21 10:01:10,738 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2355 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 5434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:10,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 1943 Invalid, 5434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 4674 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 10:01:10,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-21 10:01:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 816. [2023-12-21 10:01:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 642 states have (on average 1.6604361370716512) internal successors, (1066), 650 states have internal predecessors, (1066), 147 states have call successors, (147), 22 states have call predecessors, (147), 26 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2023-12-21 10:01:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1381 transitions. [2023-12-21 10:01:10,820 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1381 transitions. Word has length 107 [2023-12-21 10:01:10,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:10,833 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1381 transitions. [2023-12-21 10:01:10,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-21 10:01:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1381 transitions. [2023-12-21 10:01:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 10:01:10,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:10,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:10,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-21 10:01:11,037 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 [2023-12-21 10:01:11,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:11,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash 236215013, now seen corresponding path program 1 times [2023-12-21 10:01:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009157830] [2023-12-21 10:01:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:11,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 10:01:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:01:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:01:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 10:01:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 10:01:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 10:01:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:11,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:11,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009157830] [2023-12-21 10:01:11,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009157830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:11,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:11,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182882723] [2023-12-21 10:01:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:11,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:11,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:11,144 INFO L87 Difference]: Start difference. First operand 816 states and 1381 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:12,156 INFO L93 Difference]: Finished difference Result 2039 states and 3547 transitions. [2023-12-21 10:01:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-21 10:01:12,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:12,162 INFO L225 Difference]: With dead ends: 2039 [2023-12-21 10:01:12,162 INFO L226 Difference]: Without dead ends: 1291 [2023-12-21 10:01:12,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:12,165 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1241 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:12,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 893 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-12-21 10:01:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1198. [2023-12-21 10:01:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 945 states have (on average 1.66984126984127) internal successors, (1578), 953 states have internal predecessors, (1578), 226 states have call successors, (226), 22 states have call predecessors, (226), 26 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2023-12-21 10:01:12,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 2061 transitions. [2023-12-21 10:01:12,203 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 2061 transitions. Word has length 111 [2023-12-21 10:01:12,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:12,203 INFO L495 AbstractCegarLoop]: Abstraction has 1198 states and 2061 transitions. [2023-12-21 10:01:12,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 2061 transitions. [2023-12-21 10:01:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 10:01:12,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:12,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:12,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 10:01:12,208 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:12,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 391235410, now seen corresponding path program 1 times [2023-12-21 10:01:12,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:12,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567087469] [2023-12-21 10:01:12,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:12,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 10:01:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:01:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:01:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:01:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 10:01:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 10:01:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:12,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567087469] [2023-12-21 10:01:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567087469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:12,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:12,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985274948] [2023-12-21 10:01:12,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:12,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:12,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:12,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:12,289 INFO L87 Difference]: Start difference. First operand 1198 states and 2061 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:13,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:13,294 INFO L93 Difference]: Finished difference Result 2990 states and 5233 transitions. [2023-12-21 10:01:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-21 10:01:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:13,304 INFO L225 Difference]: With dead ends: 2990 [2023-12-21 10:01:13,304 INFO L226 Difference]: Without dead ends: 1910 [2023-12-21 10:01:13,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:13,308 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1236 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:13,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 880 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 10:01:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2023-12-21 10:01:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1817. [2023-12-21 10:01:13,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1445 states have (on average 1.6733564013840831) internal successors, (2418), 1453 states have internal predecessors, (2418), 345 states have call successors, (345), 22 states have call predecessors, (345), 26 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2023-12-21 10:01:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 3139 transitions. [2023-12-21 10:01:13,377 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 3139 transitions. Word has length 112 [2023-12-21 10:01:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:13,377 INFO L495 AbstractCegarLoop]: Abstraction has 1817 states and 3139 transitions. [2023-12-21 10:01:13,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 3139 transitions. [2023-12-21 10:01:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 10:01:13,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:13,384 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:13,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 10:01:13,385 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:13,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:13,385 INFO L85 PathProgramCache]: Analyzing trace with hash -191913005, now seen corresponding path program 1 times [2023-12-21 10:01:13,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:13,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542187239] [2023-12-21 10:01:13,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:13,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:01:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:01:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:01:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 10:01:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:01:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 10:01:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:13,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:13,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542187239] [2023-12-21 10:01:13,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542187239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:13,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:13,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:13,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629271707] [2023-12-21 10:01:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:13,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:13,452 INFO L87 Difference]: Start difference. First operand 1817 states and 3139 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:14,552 INFO L93 Difference]: Finished difference Result 4430 states and 7804 transitions. [2023-12-21 10:01:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:14,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-21 10:01:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:14,564 INFO L225 Difference]: With dead ends: 4430 [2023-12-21 10:01:14,564 INFO L226 Difference]: Without dead ends: 2859 [2023-12-21 10:01:14,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:14,570 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1237 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:14,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 872 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2023-12-21 10:01:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2766. [2023-12-21 10:01:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2232 states have (on average 1.6769713261648747) internal successors, (3743), 2240 states have internal predecessors, (3743), 507 states have call successors, (507), 22 states have call predecessors, (507), 26 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2023-12-21 10:01:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 4804 transitions. [2023-12-21 10:01:14,656 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 4804 transitions. Word has length 113 [2023-12-21 10:01:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:14,657 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 4804 transitions. [2023-12-21 10:01:14,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 4804 transitions. [2023-12-21 10:01:14,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 10:01:14,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:14,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:14,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 10:01:14,666 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:14,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash 344732179, now seen corresponding path program 1 times [2023-12-21 10:01:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:14,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771712478] [2023-12-21 10:01:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:14,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:01:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:01:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:01:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 10:01:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 10:01:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 10:01:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:14,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:14,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771712478] [2023-12-21 10:01:14,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771712478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:14,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:14,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:14,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287146591] [2023-12-21 10:01:14,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:14,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:14,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:14,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:14,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:14,734 INFO L87 Difference]: Start difference. First operand 2766 states and 4804 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:15,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:15,796 INFO L93 Difference]: Finished difference Result 6702 states and 11872 transitions. [2023-12-21 10:01:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-21 10:01:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:15,822 INFO L225 Difference]: With dead ends: 6702 [2023-12-21 10:01:15,822 INFO L226 Difference]: Without dead ends: 4391 [2023-12-21 10:01:15,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:15,830 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1235 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:15,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 872 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2023-12-21 10:01:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 4298. [2023-12-21 10:01:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 3519 states have (on average 1.6797385620915033) internal successors, (5911), 3527 states have internal predecessors, (5911), 752 states have call successors, (752), 22 states have call predecessors, (752), 26 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2023-12-21 10:01:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 7488 transitions. [2023-12-21 10:01:15,986 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 7488 transitions. Word has length 114 [2023-12-21 10:01:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:15,986 INFO L495 AbstractCegarLoop]: Abstraction has 4298 states and 7488 transitions. [2023-12-21 10:01:15,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 7488 transitions. [2023-12-21 10:01:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 10:01:15,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:15,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:15,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 10:01:15,997 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:15,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash 381126639, now seen corresponding path program 1 times [2023-12-21 10:01:15,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:15,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84780878] [2023-12-21 10:01:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:15,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 10:01:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:01:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:01:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 10:01:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 10:01:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 10:01:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:16,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:16,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84780878] [2023-12-21 10:01:16,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84780878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:16,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:16,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051374490] [2023-12-21 10:01:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:16,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:16,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:16,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:16,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:16,062 INFO L87 Difference]: Start difference. First operand 4298 states and 7488 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:17,050 INFO L93 Difference]: Finished difference Result 10755 states and 19083 transitions. [2023-12-21 10:01:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-21 10:01:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:17,090 INFO L225 Difference]: With dead ends: 10755 [2023-12-21 10:01:17,091 INFO L226 Difference]: Without dead ends: 7151 [2023-12-21 10:01:17,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:17,102 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1232 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:17,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 900 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 10:01:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2023-12-21 10:01:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 7058. [2023-12-21 10:01:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 5786 states have (on average 1.6742136190805392) internal successors, (9687), 5794 states have internal predecessors, (9687), 1245 states have call successors, (1245), 22 states have call predecessors, (1245), 26 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2023-12-21 10:01:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 12294 transitions. [2023-12-21 10:01:17,368 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 12294 transitions. Word has length 115 [2023-12-21 10:01:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:17,368 INFO L495 AbstractCegarLoop]: Abstraction has 7058 states and 12294 transitions. [2023-12-21 10:01:17,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 12294 transitions. [2023-12-21 10:01:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 10:01:17,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:17,382 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:17,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 10:01:17,382 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:17,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2074157577, now seen corresponding path program 1 times [2023-12-21 10:01:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508215878] [2023-12-21 10:01:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:01:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:01:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 10:01:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:01:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 10:01:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 10:01:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:17,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508215878] [2023-12-21 10:01:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508215878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:17,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:17,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399419781] [2023-12-21 10:01:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:17,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:17,457 INFO L87 Difference]: Start difference. First operand 7058 states and 12294 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:18,778 INFO L93 Difference]: Finished difference Result 17958 states and 31830 transitions. [2023-12-21 10:01:18,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:18,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-12-21 10:01:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:18,847 INFO L225 Difference]: With dead ends: 17958 [2023-12-21 10:01:18,847 INFO L226 Difference]: Without dead ends: 11980 [2023-12-21 10:01:18,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:18,865 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1233 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:18,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 888 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11980 states. [2023-12-21 10:01:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11980 to 11887. [2023-12-21 10:01:19,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11887 states, 9793 states have (on average 1.67344021239661) internal successors, (16388), 9801 states have internal predecessors, (16388), 2067 states have call successors, (2067), 22 states have call predecessors, (2067), 26 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2023-12-21 10:01:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11887 states to 11887 states and 20717 transitions. [2023-12-21 10:01:19,320 INFO L78 Accepts]: Start accepts. Automaton has 11887 states and 20717 transitions. Word has length 116 [2023-12-21 10:01:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:19,320 INFO L495 AbstractCegarLoop]: Abstraction has 11887 states and 20717 transitions. [2023-12-21 10:01:19,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 11887 states and 20717 transitions. [2023-12-21 10:01:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 10:01:19,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:19,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:19,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 10:01:19,341 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:19,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash -906889263, now seen corresponding path program 1 times [2023-12-21 10:01:19,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:19,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108524430] [2023-12-21 10:01:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:01:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 10:01:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 10:01:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 10:01:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 10:01:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 10:01:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108524430] [2023-12-21 10:01:19,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108524430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:19,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:19,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078753508] [2023-12-21 10:01:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:19,411 INFO L87 Difference]: Start difference. First operand 11887 states and 20717 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:20,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:20,849 INFO L93 Difference]: Finished difference Result 28504 states and 50278 transitions. [2023-12-21 10:01:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:20,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-12-21 10:01:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:20,910 INFO L225 Difference]: With dead ends: 28504 [2023-12-21 10:01:20,910 INFO L226 Difference]: Without dead ends: 18652 [2023-12-21 10:01:20,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:20,941 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1227 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:20,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 854 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18652 states. [2023-12-21 10:01:21,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18652 to 18559. [2023-12-21 10:01:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18559 states, 15262 states have (on average 1.6496527322762415) internal successors, (25177), 15270 states have internal predecessors, (25177), 3270 states have call successors, (3270), 22 states have call predecessors, (3270), 26 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2023-12-21 10:01:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18559 states to 18559 states and 32056 transitions. [2023-12-21 10:01:21,772 INFO L78 Accepts]: Start accepts. Automaton has 18559 states and 32056 transitions. Word has length 117 [2023-12-21 10:01:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:21,773 INFO L495 AbstractCegarLoop]: Abstraction has 18559 states and 32056 transitions. [2023-12-21 10:01:21,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:21,773 INFO L276 IsEmpty]: Start isEmpty. Operand 18559 states and 32056 transitions. [2023-12-21 10:01:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 10:01:21,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:21,796 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:01:21,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 10:01:21,797 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:21,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:21,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1481731160, now seen corresponding path program 1 times [2023-12-21 10:01:21,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:21,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102483064] [2023-12-21 10:01:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:21,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:01:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 10:01:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 10:01:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 10:01:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 10:01:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 10:01:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:21,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:21,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102483064] [2023-12-21 10:01:21,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102483064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:21,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:21,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522050673] [2023-12-21 10:01:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:21,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:21,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:21,947 INFO L87 Difference]: Start difference. First operand 18559 states and 32056 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:23,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:23,610 INFO L93 Difference]: Finished difference Result 49137 states and 86397 transitions. [2023-12-21 10:01:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:23,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-12-21 10:01:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:23,846 INFO L225 Difference]: With dead ends: 49137 [2023-12-21 10:01:23,847 INFO L226 Difference]: Without dead ends: 33233 [2023-12-21 10:01:23,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:23,875 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1229 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:23,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 872 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 10:01:23,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33233 states. [2023-12-21 10:01:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33233 to 33140. [2023-12-21 10:01:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33140 states, 27393 states have (on average 1.6465155331654073) internal successors, (45103), 27401 states have internal predecessors, (45103), 5720 states have call successors, (5720), 22 states have call predecessors, (5720), 26 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2023-12-21 10:01:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33140 states to 33140 states and 57156 transitions. [2023-12-21 10:01:25,079 INFO L78 Accepts]: Start accepts. Automaton has 33140 states and 57156 transitions. Word has length 118 [2023-12-21 10:01:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:25,079 INFO L495 AbstractCegarLoop]: Abstraction has 33140 states and 57156 transitions. [2023-12-21 10:01:25,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 33140 states and 57156 transitions. [2023-12-21 10:01:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 10:01:25,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:25,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:01:25,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 10:01:25,098 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:25,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1553921845, now seen corresponding path program 1 times [2023-12-21 10:01:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:25,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808349888] [2023-12-21 10:01:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:01:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:01:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 10:01:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:01:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 10:01:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 10:01:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:25,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:25,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808349888] [2023-12-21 10:01:25,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808349888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:25,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:25,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360132557] [2023-12-21 10:01:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:25,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:25,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:25,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:25,503 INFO L87 Difference]: Start difference. First operand 33140 states and 57156 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:27,693 INFO L93 Difference]: Finished difference Result 90439 states and 158226 transitions. [2023-12-21 10:01:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:27,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-12-21 10:01:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:27,894 INFO L225 Difference]: With dead ends: 90439 [2023-12-21 10:01:27,894 INFO L226 Difference]: Without dead ends: 60845 [2023-12-21 10:01:27,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:27,981 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1225 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:27,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 875 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 10:01:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60845 states. [2023-12-21 10:01:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60845 to 60752. [2023-12-21 10:01:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60752 states, 50492 states have (on average 1.6424978214370594) internal successors, (82933), 50500 states have internal predecessors, (82933), 10233 states have call successors, (10233), 22 states have call predecessors, (10233), 26 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2023-12-21 10:01:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60752 states to 60752 states and 104544 transitions. [2023-12-21 10:01:30,280 INFO L78 Accepts]: Start accepts. Automaton has 60752 states and 104544 transitions. Word has length 119 [2023-12-21 10:01:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:30,281 INFO L495 AbstractCegarLoop]: Abstraction has 60752 states and 104544 transitions. [2023-12-21 10:01:30,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:30,281 INFO L276 IsEmpty]: Start isEmpty. Operand 60752 states and 104544 transitions. [2023-12-21 10:01:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 10:01:30,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:30,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:01:30,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 10:01:30,304 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:30,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:30,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1098082024, now seen corresponding path program 1 times [2023-12-21 10:01:30,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:30,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101132296] [2023-12-21 10:01:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:30,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:01:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:01:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 10:01:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:01:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 10:01:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 10:01:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101132296] [2023-12-21 10:01:30,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101132296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:30,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:30,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:01:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428114369] [2023-12-21 10:01:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:30,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:01:30,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:30,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:01:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:01:30,394 INFO L87 Difference]: Start difference. First operand 60752 states and 104544 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:33,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:33,763 INFO L93 Difference]: Finished difference Result 113791 states and 199579 transitions. [2023-12-21 10:01:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:01:33,764 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-12-21 10:01:33,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:34,101 INFO L225 Difference]: With dead ends: 113791 [2023-12-21 10:01:34,101 INFO L226 Difference]: Without dead ends: 113639 [2023-12-21 10:01:34,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 10:01:34,137 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1221 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:34,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 874 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 10:01:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113639 states. [2023-12-21 10:01:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113639 to 113546. [2023-12-21 10:01:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113546 states, 94918 states have (on average 1.6374344170757917) internal successors, (155422), 94926 states have internal predecessors, (155422), 18601 states have call successors, (18601), 22 states have call predecessors, (18601), 26 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2023-12-21 10:01:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113546 states to 113546 states and 194815 transitions. [2023-12-21 10:01:38,196 INFO L78 Accepts]: Start accepts. Automaton has 113546 states and 194815 transitions. Word has length 120 [2023-12-21 10:01:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:38,197 INFO L495 AbstractCegarLoop]: Abstraction has 113546 states and 194815 transitions. [2023-12-21 10:01:38,197 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:01:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 113546 states and 194815 transitions. [2023-12-21 10:01:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 10:01:38,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:38,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:38,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 10:01:38,247 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:38,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash -383485206, now seen corresponding path program 1 times [2023-12-21 10:01:38,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:38,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242976879] [2023-12-21 10:01:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:38,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:01:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:01:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:01:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:01:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 10:01:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 10:01:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:38,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:38,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242976879] [2023-12-21 10:01:38,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242976879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:38,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:38,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 10:01:38,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834000829] [2023-12-21 10:01:38,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:38,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 10:01:38,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:38,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 10:01:38,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-12-21 10:01:38,712 INFO L87 Difference]: Start difference. First operand 113546 states and 194815 transitions. Second operand has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 10:01:47,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:01:47,629 INFO L93 Difference]: Finished difference Result 226431 states and 400561 transitions. [2023-12-21 10:01:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 10:01:47,630 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 121 [2023-12-21 10:01:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:01:48,713 INFO L225 Difference]: With dead ends: 226431 [2023-12-21 10:01:48,713 INFO L226 Difference]: Without dead ends: 226284 [2023-12-21 10:01:48,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=767, Invalid=3139, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 10:01:48,797 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 4101 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 6643 mSolverCounterSat, 1443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 8086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1443 IncrementalHoareTripleChecker+Valid, 6643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:01:48,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 2745 Invalid, 8086 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1443 Valid, 6643 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-21 10:01:48,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226284 states. [2023-12-21 10:01:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226284 to 226014. [2023-12-21 10:01:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226014 states, 188995 states have (on average 1.6381332839493108) internal successors, (309599), 188901 states have internal predecessors, (309599), 36952 states have call successors, (36952), 57 states have call predecessors, (36952), 66 states have return successors, (44625), 37061 states have call predecessors, (44625), 36949 states have call successors, (44625) [2023-12-21 10:01:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226014 states to 226014 states and 391176 transitions. [2023-12-21 10:01:58,163 INFO L78 Accepts]: Start accepts. Automaton has 226014 states and 391176 transitions. Word has length 121 [2023-12-21 10:01:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:01:58,163 INFO L495 AbstractCegarLoop]: Abstraction has 226014 states and 391176 transitions. [2023-12-21 10:01:58,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 10:01:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 226014 states and 391176 transitions. [2023-12-21 10:01:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 10:01:58,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:01:58,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:01:58,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 10:01:58,280 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:01:58,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:01:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1353257439, now seen corresponding path program 1 times [2023-12-21 10:01:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:01:58,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383082064] [2023-12-21 10:01:58,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:01:58,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:01:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:01:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:01:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:01:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:01:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:01:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:01:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:01:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:01:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:01:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:01:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 10:01:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 10:01:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:01:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:01:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:01:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383082064] [2023-12-21 10:01:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383082064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:01:58,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:01:58,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 10:01:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966790466] [2023-12-21 10:01:58,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:01:58,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 10:01:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:01:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 10:01:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 10:01:58,412 INFO L87 Difference]: Start difference. First operand 226014 states and 391176 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:02:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:02:07,772 INFO L93 Difference]: Finished difference Result 339170 states and 606019 transitions. [2023-12-21 10:02:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 10:02:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2023-12-21 10:02:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:02:09,586 INFO L225 Difference]: With dead ends: 339170 [2023-12-21 10:02:09,586 INFO L226 Difference]: Without dead ends: 338863 [2023-12-21 10:02:09,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-21 10:02:09,750 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 2603 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 10:02:09,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 1301 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 10:02:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338863 states. [2023-12-21 10:02:22,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338863 to 338472. [2023-12-21 10:02:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338472 states, 283063 states have (on average 1.638363191233047) internal successors, (463760), 282868 states have internal predecessors, (463760), 55303 states have call successors, (55303), 90 states have call predecessors, (55303), 105 states have return successors, (73813), 55523 states have call predecessors, (73813), 55298 states have call successors, (73813) [2023-12-21 10:02:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338472 states to 338472 states and 592876 transitions. [2023-12-21 10:02:25,218 INFO L78 Accepts]: Start accepts. Automaton has 338472 states and 592876 transitions. Word has length 122 [2023-12-21 10:02:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:02:25,218 INFO L495 AbstractCegarLoop]: Abstraction has 338472 states and 592876 transitions. [2023-12-21 10:02:25,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:02:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 338472 states and 592876 transitions. [2023-12-21 10:02:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 10:02:25,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:02:25,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 10:02:25,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 10:02:25,289 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:02:25,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:02:25,292 INFO L85 PathProgramCache]: Analyzing trace with hash -930555613, now seen corresponding path program 1 times [2023-12-21 10:02:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:02:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933077983] [2023-12-21 10:02:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:02:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:02:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:02:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:02:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:02:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:02:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:02:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:02:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:02:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:02:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:02:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:02:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 10:02:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 10:02:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:02:25,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:02:25,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933077983] [2023-12-21 10:02:25,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933077983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:02:25,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:02:25,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:02:25,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967253325] [2023-12-21 10:02:25,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:02:25,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:02:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:02:25,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:02:25,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:02:25,451 INFO L87 Difference]: Start difference. First operand 338472 states and 592876 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:02:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:02:35,062 INFO L93 Difference]: Finished difference Result 340134 states and 605388 transitions. [2023-12-21 10:02:35,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 10:02:35,063 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2023-12-21 10:02:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:02:37,298 INFO L225 Difference]: With dead ends: 340134 [2023-12-21 10:02:37,298 INFO L226 Difference]: Without dead ends: 339379 [2023-12-21 10:02:37,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 10:02:37,460 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1911 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:02:37,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 727 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 10:02:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339379 states. [2023-12-21 10:02:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339379 to 338942. [2023-12-21 10:02:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338942 states, 283425 states have (on average 1.6382711475699039) internal successors, (464327), 283244 states have internal predecessors, (464327), 55365 states have call successors, (55365), 140 states have call predecessors, (55365), 151 states have return successors, (73888), 55572 states have call predecessors, (73888), 55355 states have call successors, (73888) [2023-12-21 10:02:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338942 states to 338942 states and 593580 transitions. [2023-12-21 10:02:52,728 INFO L78 Accepts]: Start accepts. Automaton has 338942 states and 593580 transitions. Word has length 122 [2023-12-21 10:02:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:02:52,731 INFO L495 AbstractCegarLoop]: Abstraction has 338942 states and 593580 transitions. [2023-12-21 10:02:52,731 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 10:02:52,731 INFO L276 IsEmpty]: Start isEmpty. Operand 338942 states and 593580 transitions. [2023-12-21 10:02:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-21 10:02:53,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:02:53,699 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-12-21 10:02:53,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 10:02:53,699 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:02:53,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:02:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash -410301481, now seen corresponding path program 1 times [2023-12-21 10:02:53,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:02:53,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389061275] [2023-12-21 10:02:53,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:02:53,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:02:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:02:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:02:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:02:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:02:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:02:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:02:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:02:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:02:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:02:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:02:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 10:02:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 10:02:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 10:02:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:02:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:02:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 10:02:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:02:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 10:02:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 10:02:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 10:02:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-21 10:02:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 10:02:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:02:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-21 10:02:53,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:02:53,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389061275] [2023-12-21 10:02:53,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389061275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:02:53,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:02:53,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 10:02:53,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455337680] [2023-12-21 10:02:53,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:02:53,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 10:02:53,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:02:53,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 10:02:53,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 10:02:53,903 INFO L87 Difference]: Start difference. First operand 338942 states and 593580 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22)