/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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:52:27,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:52:27,177 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 09:52:27,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:52:27,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:52:27,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:52:27,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:52:27,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:52:27,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:52:27,207 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:52:27,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:52:27,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:52:27,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:52:27,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:52:27,209 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:52:27,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:52:27,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:52:27,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:52:27,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:52:27,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:52:27,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:52:27,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:52:27,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:52:27,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:52:27,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:52:27,212 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:52:27,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:52:27,212 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:52:27,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:52:27,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:52:27,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:52:27,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:52:27,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:52:27,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:52:27,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:52:27,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:52:27,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:52:27,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:52:27,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:52:27,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:52:27,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:52:27,409 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:52:27,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2023-12-21 09:52:28,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:52:28,710 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:52:28,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2023-12-21 09:52:28,726 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076a6817e/a2c92670173e46918ec1e4cdb55342cb/FLAG39e764cba [2023-12-21 09:52:28,735 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076a6817e/a2c92670173e46918ec1e4cdb55342cb [2023-12-21 09:52:28,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:52:28,738 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:52:28,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:52:28,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:52:28,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:52:28,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:52:28" (1/1) ... [2023-12-21 09:52:28,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765f08b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:28, skipping insertion in model container [2023-12-21 09:52:28,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:52:28" (1/1) ... [2023-12-21 09:52:28,814 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:52:28,952 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-12-21 09:52:29,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:52:29,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:52:29,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-21 09:52:29,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2023-12-21 09:52:29,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [75] [2023-12-21 09:52:29,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [308] [2023-12-21 09:52:29,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [357] [2023-12-21 09:52:29,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1437] [2023-12-21 09:52:29,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1849] [2023-12-21 09:52:29,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1948] [2023-12-21 09:52:29,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2314] [2023-12-21 09:52:29,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2619] [2023-12-21 09:52:29,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2985] [2023-12-21 09:52:29,229 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-12-21 09:52:29,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:52:29,398 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:52:29,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29 WrapperNode [2023-12-21 09:52:29,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:52:29,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:52:29,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:52:29,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:52:29,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,466 INFO L138 Inliner]: procedures = 133, calls = 208, calls flagged for inlining = 64, calls inlined = 61, statements flattened = 1094 [2023-12-21 09:52:29,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:52:29,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:52:29,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:52:29,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:52:29,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,526 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 09:52:29,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:52:29,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:52:29,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:52:29,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:52:29,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (1/1) ... [2023-12-21 09:52:29,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:52:29,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:29,645 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 09:52:29,666 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 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-21 09:52:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-21 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-21 09:52:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-21 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-21 09:52:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-21 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 09:52:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:52:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:52:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 09:52:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 09:52:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-21 09:52:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-21 09:52:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 09:52:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 09:52:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-21 09:52:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-21 09:52:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 09:52:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 09:52:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 09:52:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 09:52:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 09:52:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 09:52:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 09:52:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 09:52:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 09:52:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 09:52:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 09:52:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-21 09:52:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-21 09:52:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:52:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:52:29,851 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:52:29,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:52:30,532 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:52:30,594 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:52:30,594 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:52:30,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:52:30 BoogieIcfgContainer [2023-12-21 09:52:30,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:52:30,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:52:30,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:52:30,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:52:30,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:52:28" (1/3) ... [2023-12-21 09:52:30,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27263d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:52:30, skipping insertion in model container [2023-12-21 09:52:30,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:52:29" (2/3) ... [2023-12-21 09:52:30,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27263d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:52:30, skipping insertion in model container [2023-12-21 09:52:30,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:52:30" (3/3) ... [2023-12-21 09:52:30,602 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2023-12-21 09:52:30,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:52:30,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:52:30,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:52:30,673 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;@6b3bfd8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:52:30,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:52:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 291 states have (on average 1.6185567010309279) internal successors, (471), 294 states have internal predecessors, (471), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-21 09:52:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 09:52:30,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:30,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:30,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:30,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash -826176283, now seen corresponding path program 1 times [2023-12-21 09:52:30,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:30,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101580731] [2023-12-21 09:52:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:52:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:52:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:52:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:52:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:52:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:52:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:52:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:52:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:52:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:52:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:52:31,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:31,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101580731] [2023-12-21 09:52:31,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101580731] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:31,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510856958] [2023-12-21 09:52:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:31,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:31,366 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 09:52:31,392 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 09:52:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:31,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 09:52:31,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:52:31,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:52:31,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510856958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:31,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:52:31,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 09:52:31,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78167156] [2023-12-21 09:52:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 09:52:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:31,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 09:52:31,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:52:31,789 INFO L87 Difference]: Start difference. First operand has 376 states, 291 states have (on average 1.6185567010309279) internal successors, (471), 294 states have internal predecessors, (471), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:31,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:31,857 INFO L93 Difference]: Finished difference Result 564 states and 874 transitions. [2023-12-21 09:52:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 09:52:31,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-21 09:52:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:31,869 INFO L225 Difference]: With dead ends: 564 [2023-12-21 09:52:31,869 INFO L226 Difference]: Without dead ends: 373 [2023-12-21 09:52:31,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 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 09:52:31,876 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:31,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 568 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:52:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-12-21 09:52:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2023-12-21 09:52:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 289 states have (on average 1.6055363321799307) internal successors, (464), 291 states have internal predecessors, (464), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-21 09:52:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 583 transitions. [2023-12-21 09:52:31,932 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 583 transitions. Word has length 95 [2023-12-21 09:52:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:31,933 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 583 transitions. [2023-12-21 09:52:31,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 583 transitions. [2023-12-21 09:52:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 09:52:31,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:31,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:31,965 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 09:52:32,166 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 09:52:32,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:32,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash -455101672, now seen corresponding path program 1 times [2023-12-21 09:52:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:32,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436498160] [2023-12-21 09:52:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:32,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:52:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:52:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:52:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:52:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:52:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:52:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:52:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:52:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:52:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:52:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:52:32,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436498160] [2023-12-21 09:52:32,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436498160] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:32,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313831380] [2023-12-21 09:52:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:32,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:32,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:32,489 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 09:52:32,515 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 09:52:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:32,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 09:52:32,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:52:32,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:52:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313831380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:52:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:52:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960020571] [2023-12-21 09:52:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:32,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:52:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:52:32,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:52:32,753 INFO L87 Difference]: Start difference. First operand 373 states and 583 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:32,819 INFO L93 Difference]: Finished difference Result 560 states and 858 transitions. [2023-12-21 09:52:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:52:32,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-21 09:52:32,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:32,822 INFO L225 Difference]: With dead ends: 560 [2023-12-21 09:52:32,822 INFO L226 Difference]: Without dead ends: 375 [2023-12-21 09:52:32,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:52:32,824 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 0 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:32,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1129 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:52:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-21 09:52:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-12-21 09:52:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 291 states have (on average 1.6013745704467355) internal successors, (466), 293 states have internal predecessors, (466), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-21 09:52:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 585 transitions. [2023-12-21 09:52:32,840 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 585 transitions. Word has length 96 [2023-12-21 09:52:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:32,841 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 585 transitions. [2023-12-21 09:52:32,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 585 transitions. [2023-12-21 09:52:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 09:52:32,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:32,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:32,864 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 09:52:33,043 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 09:52:33,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:33,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:33,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1705677473, now seen corresponding path program 1 times [2023-12-21 09:52:33,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:33,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554764534] [2023-12-21 09:52:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:33,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:52:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:52:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:52:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:52:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:52:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:52:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:52:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:52:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:52:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:52:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:52:33,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:33,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554764534] [2023-12-21 09:52:33,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554764534] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:33,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177597741] [2023-12-21 09:52:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:33,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:33,290 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 09:52:33,316 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 09:52:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:52:33,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:52:33,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:52:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177597741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:33,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:52:33,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:52:33,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857974405] [2023-12-21 09:52:33,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:33,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:52:33,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:52:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:52:33,552 INFO L87 Difference]: Start difference. First operand 375 states and 585 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:33,597 INFO L93 Difference]: Finished difference Result 802 states and 1269 transitions. [2023-12-21 09:52:33,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:52:33,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-21 09:52:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:33,599 INFO L225 Difference]: With dead ends: 802 [2023-12-21 09:52:33,599 INFO L226 Difference]: Without dead ends: 449 [2023-12-21 09:52:33,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 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 09:52:33,601 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 136 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:33,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1094 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:52:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-12-21 09:52:33,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 444. [2023-12-21 09:52:33,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 346 states have (on average 1.6184971098265897) internal successors, (560), 348 states have internal predecessors, (560), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 09:52:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 707 transitions. [2023-12-21 09:52:33,616 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 707 transitions. Word has length 103 [2023-12-21 09:52:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:33,617 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 707 transitions. [2023-12-21 09:52:33,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 707 transitions. [2023-12-21 09:52:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 09:52:33,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:33,618 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:33,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 09:52:33,824 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 09:52:33,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:33,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -385457840, now seen corresponding path program 1 times [2023-12-21 09:52:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322287253] [2023-12-21 09:52:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:52:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:52:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:52:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:52:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:52:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:52:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:52:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:52:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:52:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:52:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:52:33,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:33,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322287253] [2023-12-21 09:52:33,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322287253] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218357098] [2023-12-21 09:52:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:33,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:33,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:33,948 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 09:52:33,989 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 09:52:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 09:52:34,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-21 09:52:34,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:52:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218357098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:34,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:52:34,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 09:52:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647573249] [2023-12-21 09:52:34,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:34,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:52:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:52:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:52:34,224 INFO L87 Difference]: Start difference. First operand 444 states and 707 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:34,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:34,297 INFO L93 Difference]: Finished difference Result 883 states and 1408 transitions. [2023-12-21 09:52:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:52:34,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2023-12-21 09:52:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:34,299 INFO L225 Difference]: With dead ends: 883 [2023-12-21 09:52:34,299 INFO L226 Difference]: Without dead ends: 446 [2023-12-21 09:52:34,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 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 09:52:34,301 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 8 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:34,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2213 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:52:34,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-21 09:52:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-12-21 09:52:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 347 states have (on average 1.61671469740634) internal successors, (561), 350 states have internal predecessors, (561), 74 states have call successors, (74), 23 states have call predecessors, (74), 24 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2023-12-21 09:52:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 710 transitions. [2023-12-21 09:52:34,313 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 710 transitions. Word has length 104 [2023-12-21 09:52:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:34,313 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 710 transitions. [2023-12-21 09:52:34,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 710 transitions. [2023-12-21 09:52:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 09:52:34,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:34,315 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:34,322 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 09:52:34,521 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 09:52:34,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:34,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash 565022539, now seen corresponding path program 1 times [2023-12-21 09:52:34,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:34,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133185349] [2023-12-21 09:52:34,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:34,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 09:52:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 09:52:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:52:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:52:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:52:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:52:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:52:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:52:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:52:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 09:52:34,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:34,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133185349] [2023-12-21 09:52:34,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133185349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:34,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068486348] [2023-12-21 09:52:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:34,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:34,713 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 09:52:34,729 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 09:52:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:34,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 09:52:34,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-21 09:52:34,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:52:34,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068486348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:34,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:52:34,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 09:52:34,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215160664] [2023-12-21 09:52:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:34,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:52:34,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:52:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:52:34,993 INFO L87 Difference]: Start difference. First operand 446 states and 710 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:35,078 INFO L93 Difference]: Finished difference Result 885 states and 1413 transitions. [2023-12-21 09:52:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:52:35,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2023-12-21 09:52:35,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:35,081 INFO L225 Difference]: With dead ends: 885 [2023-12-21 09:52:35,081 INFO L226 Difference]: Without dead ends: 448 [2023-12-21 09:52:35,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 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 09:52:35,083 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 8 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:35,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2199 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:52:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-21 09:52:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2023-12-21 09:52:35,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 348 states have (on average 1.6149425287356323) internal successors, (562), 352 states have internal predecessors, (562), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-21 09:52:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 716 transitions. [2023-12-21 09:52:35,098 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 716 transitions. Word has length 105 [2023-12-21 09:52:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:35,098 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 716 transitions. [2023-12-21 09:52:35,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 716 transitions. [2023-12-21 09:52:35,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 09:52:35,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:35,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:35,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 09:52:35,308 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 09:52:35,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:35,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:35,309 INFO L85 PathProgramCache]: Analyzing trace with hash 485132098, now seen corresponding path program 1 times [2023-12-21 09:52:35,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:35,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156961753] [2023-12-21 09:52:35,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:35,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 09:52:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:52:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:52:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:52:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:52:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:52:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:52:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:52:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:52:35,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:35,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156961753] [2023-12-21 09:52:35,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156961753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:35,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:35,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:52:35,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943894846] [2023-12-21 09:52:35,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:35,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:52:35,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:35,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:52:35,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:52:35,444 INFO L87 Difference]: Start difference. First operand 448 states and 716 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:37,558 INFO L93 Difference]: Finished difference Result 1058 states and 1728 transitions. [2023-12-21 09:52:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:52:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-12-21 09:52:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:37,562 INFO L225 Difference]: With dead ends: 1058 [2023-12-21 09:52:37,562 INFO L226 Difference]: Without dead ends: 629 [2023-12-21 09:52:37,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 09:52:37,564 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1303 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:37,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 1242 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 09:52:37,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-12-21 09:52:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 448. [2023-12-21 09:52:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 348 states have (on average 1.6149425287356323) internal successors, (562), 352 states have internal predecessors, (562), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-21 09:52:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 715 transitions. [2023-12-21 09:52:37,595 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 715 transitions. Word has length 106 [2023-12-21 09:52:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:37,595 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 715 transitions. [2023-12-21 09:52:37,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:37,596 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 715 transitions. [2023-12-21 09:52:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 09:52:37,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:37,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:37,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 09:52:37,598 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:37,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -767799265, now seen corresponding path program 2 times [2023-12-21 09:52:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:37,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521658057] [2023-12-21 09:52:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:37,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 09:52:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:52:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:52:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:52:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:52:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:52:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:52:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:52:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:52:37,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:37,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521658057] [2023-12-21 09:52:37,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521658057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:37,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:37,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:52:37,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836515087] [2023-12-21 09:52:37,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:37,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:52:37,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:37,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:52:37,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:52:37,745 INFO L87 Difference]: Start difference. First operand 448 states and 715 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:39,774 INFO L93 Difference]: Finished difference Result 1060 states and 1731 transitions. [2023-12-21 09:52:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:52:39,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2023-12-21 09:52:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:39,777 INFO L225 Difference]: With dead ends: 1060 [2023-12-21 09:52:39,777 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 09:52:39,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 09:52:39,779 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1305 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:39,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 1240 Invalid, 3491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 09:52:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 09:52:39,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 450. [2023-12-21 09:52:39,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 349 states have (on average 1.6131805157593124) internal successors, (563), 354 states have internal predecessors, (563), 74 states have call successors, (74), 23 states have call predecessors, (74), 26 states have return successors, (81), 72 states have call predecessors, (81), 73 states have call successors, (81) [2023-12-21 09:52:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 718 transitions. [2023-12-21 09:52:39,799 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 718 transitions. Word has length 107 [2023-12-21 09:52:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:39,799 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 718 transitions. [2023-12-21 09:52:39,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:52:39,799 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 718 transitions. [2023-12-21 09:52:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 09:52:39,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:39,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:39,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:52:39,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:39,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:39,801 INFO L85 PathProgramCache]: Analyzing trace with hash 295142845, now seen corresponding path program 1 times [2023-12-21 09:52:39,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:39,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331884532] [2023-12-21 09:52:39,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:52:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:52:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:52:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:52:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:52:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:52:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:52:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 09:52:39,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:39,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331884532] [2023-12-21 09:52:39,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331884532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:39,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:39,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:52:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406771440] [2023-12-21 09:52:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:39,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:52:39,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:52:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:52:39,960 INFO L87 Difference]: Start difference. First operand 450 states and 718 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:52:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:42,393 INFO L93 Difference]: Finished difference Result 1058 states and 1726 transitions. [2023-12-21 09:52:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:52:42,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 108 [2023-12-21 09:52:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:42,397 INFO L225 Difference]: With dead ends: 1058 [2023-12-21 09:52:42,397 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 09:52:42,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:52:42,400 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1308 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5121 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 5562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 5121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:42,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1719 Invalid, 5562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 5121 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 09:52:42,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 09:52:42,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 450. [2023-12-21 09:52:42,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 349 states have (on average 1.6131805157593124) internal successors, (563), 354 states have internal predecessors, (563), 74 states have call successors, (74), 23 states have call predecessors, (74), 26 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-21 09:52:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 717 transitions. [2023-12-21 09:52:42,420 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 717 transitions. Word has length 108 [2023-12-21 09:52:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:42,420 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 717 transitions. [2023-12-21 09:52:42,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:52:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 717 transitions. [2023-12-21 09:52:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 09:52:42,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:42,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:42,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:52:42,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:42,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:42,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1015893594, now seen corresponding path program 2 times [2023-12-21 09:52:42,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:42,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860636339] [2023-12-21 09:52:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:42,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:52:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:52:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:52:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:52:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:52:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:52:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:52:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 09:52:42,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:42,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860636339] [2023-12-21 09:52:42,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860636339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:42,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:42,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:52:42,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318707699] [2023-12-21 09:52:42,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:52:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:42,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:52:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:52:42,607 INFO L87 Difference]: Start difference. First operand 450 states and 717 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:52:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:45,174 INFO L93 Difference]: Finished difference Result 1060 states and 1732 transitions. [2023-12-21 09:52:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:52:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 109 [2023-12-21 09:52:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:45,178 INFO L225 Difference]: With dead ends: 1060 [2023-12-21 09:52:45,178 INFO L226 Difference]: Without dead ends: 633 [2023-12-21 09:52:45,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:52:45,180 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1305 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5125 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 5125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:45,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 1718 Invalid, 5560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 5125 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 09:52:45,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-12-21 09:52:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 452. [2023-12-21 09:52:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 350 states have (on average 1.6114285714285714) internal successors, (564), 356 states have internal predecessors, (564), 74 states have call successors, (74), 23 states have call predecessors, (74), 27 states have return successors, (85), 72 states have call predecessors, (85), 73 states have call successors, (85) [2023-12-21 09:52:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 723 transitions. [2023-12-21 09:52:45,200 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 723 transitions. Word has length 109 [2023-12-21 09:52:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:45,201 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 723 transitions. [2023-12-21 09:52:45,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:52:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 723 transitions. [2023-12-21 09:52:45,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 09:52:45,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:45,202 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:45,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:52:45,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:45,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1934459784, now seen corresponding path program 1 times [2023-12-21 09:52:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328999637] [2023-12-21 09:52:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:45,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:52:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:52:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:52:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:52:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:52:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:52:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:52:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 09:52:45,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:45,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328999637] [2023-12-21 09:52:45,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328999637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:52:45,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848922442] [2023-12-21 09:52:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:45,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:52:45,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:52:45,341 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 09:52:45,362 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 09:52:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:45,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:52:45,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:52:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:45,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:52:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848922442] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:52:45,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:52:45,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-21 09:52:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27671417] [2023-12-21 09:52:45,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:52:45,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 09:52:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 09:52:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:52:45,702 INFO L87 Difference]: Start difference. First operand 452 states and 723 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 09:52:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:48,649 INFO L93 Difference]: Finished difference Result 1499 states and 2543 transitions. [2023-12-21 09:52:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 09:52:48,650 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 110 [2023-12-21 09:52:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:48,658 INFO L225 Difference]: With dead ends: 1499 [2023-12-21 09:52:48,658 INFO L226 Difference]: Without dead ends: 1073 [2023-12-21 09:52:48,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 242 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 09:52:48,661 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 2609 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 5477 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 6309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 5477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:48,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 1982 Invalid, 6309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 5477 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 09:52:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-12-21 09:52:48,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 877. [2023-12-21 09:52:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 696 states have (on average 1.6551724137931034) internal successors, (1152), 702 states have internal predecessors, (1152), 153 states have call successors, (153), 23 states have call predecessors, (153), 27 states have return successors, (174), 151 states have call predecessors, (174), 152 states have call successors, (174) [2023-12-21 09:52:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1479 transitions. [2023-12-21 09:52:48,740 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1479 transitions. Word has length 110 [2023-12-21 09:52:48,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:48,741 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1479 transitions. [2023-12-21 09:52:48,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 09:52:48,741 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1479 transitions. [2023-12-21 09:52:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 09:52:48,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:48,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:48,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 09:52:48,950 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 09:52:48,950 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:48,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash -171403862, now seen corresponding path program 1 times [2023-12-21 09:52:48,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:48,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416938342] [2023-12-21 09:52:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:52:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:52:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:52:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:52:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:52:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:52:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:52:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:49,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:49,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416938342] [2023-12-21 09:52:49,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416938342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:49,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:49,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:49,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90808919] [2023-12-21 09:52:49,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:49,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:49,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:49,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:49,042 INFO L87 Difference]: Start difference. First operand 877 states and 1479 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:50,628 INFO L93 Difference]: Finished difference Result 2274 states and 3932 transitions. [2023-12-21 09:52:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:52:50,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-12-21 09:52:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:50,635 INFO L225 Difference]: With dead ends: 2274 [2023-12-21 09:52:50,635 INFO L226 Difference]: Without dead ends: 1465 [2023-12-21 09:52:50,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:52:50,638 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1429 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:50,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 929 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:52:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-12-21 09:52:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1279. [2023-12-21 09:52:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1019 states have (on average 1.6673209028459275) internal successors, (1699), 1025 states have internal predecessors, (1699), 232 states have call successors, (232), 23 states have call predecessors, (232), 27 states have return successors, (263), 230 states have call predecessors, (263), 231 states have call successors, (263) [2023-12-21 09:52:50,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2194 transitions. [2023-12-21 09:52:50,682 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2194 transitions. Word has length 114 [2023-12-21 09:52:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:50,682 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 2194 transitions. [2023-12-21 09:52:50,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2194 transitions. [2023-12-21 09:52:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 09:52:50,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:50,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:50,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 09:52:50,687 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:50,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:50,688 INFO L85 PathProgramCache]: Analyzing trace with hash 358756712, now seen corresponding path program 1 times [2023-12-21 09:52:50,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:50,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392789090] [2023-12-21 09:52:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:50,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:52:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:52:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:52:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:52:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:52:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:52:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:52:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:50,750 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:50,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392789090] [2023-12-21 09:52:50,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392789090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:50,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:50,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:50,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625453015] [2023-12-21 09:52:50,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:50,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:50,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:50,752 INFO L87 Difference]: Start difference. First operand 1279 states and 2194 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:52,349 INFO L93 Difference]: Finished difference Result 3277 states and 5709 transitions. [2023-12-21 09:52:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:52:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-12-21 09:52:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:52,360 INFO L225 Difference]: With dead ends: 3277 [2023-12-21 09:52:52,360 INFO L226 Difference]: Without dead ends: 2116 [2023-12-21 09:52:52,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:52:52,366 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1430 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:52,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 914 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:52:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2023-12-21 09:52:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1930. [2023-12-21 09:52:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1551 states have (on average 1.6731141199226305) internal successors, (2595), 1557 states have internal predecessors, (2595), 351 states have call successors, (351), 23 states have call predecessors, (351), 27 states have return successors, (382), 349 states have call predecessors, (382), 350 states have call successors, (382) [2023-12-21 09:52:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 3328 transitions. [2023-12-21 09:52:52,443 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 3328 transitions. Word has length 115 [2023-12-21 09:52:52,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:52,444 INFO L495 AbstractCegarLoop]: Abstraction has 1930 states and 3328 transitions. [2023-12-21 09:52:52,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 3328 transitions. [2023-12-21 09:52:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 09:52:52,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:52,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:52,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:52:52,453 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:52,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -265033892, now seen corresponding path program 1 times [2023-12-21 09:52:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:52,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234416601] [2023-12-21 09:52:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:52:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:52:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:52:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:52:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:52:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:52:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:52:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:52,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:52,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234416601] [2023-12-21 09:52:52,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234416601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:52,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:52,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:52,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480293729] [2023-12-21 09:52:52,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:52,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:52,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:52,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:52,546 INFO L87 Difference]: Start difference. First operand 1930 states and 3328 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:54,200 INFO L93 Difference]: Finished difference Result 4801 states and 8427 transitions. [2023-12-21 09:52:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:52:54,201 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-12-21 09:52:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:54,215 INFO L225 Difference]: With dead ends: 4801 [2023-12-21 09:52:54,215 INFO L226 Difference]: Without dead ends: 3117 [2023-12-21 09:52:54,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:52:54,221 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1425 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:54,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 909 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:52:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2023-12-21 09:52:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2931. [2023-12-21 09:52:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 2390 states have (on average 1.6782426778242678) internal successors, (4011), 2396 states have internal predecessors, (4011), 513 states have call successors, (513), 23 states have call predecessors, (513), 27 states have return successors, (560), 511 states have call predecessors, (560), 512 states have call successors, (560) [2023-12-21 09:52:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 5084 transitions. [2023-12-21 09:52:54,342 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 5084 transitions. Word has length 116 [2023-12-21 09:52:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:54,342 INFO L495 AbstractCegarLoop]: Abstraction has 2931 states and 5084 transitions. [2023-12-21 09:52:54,342 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:54,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 5084 transitions. [2023-12-21 09:52:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 09:52:54,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:54,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:54,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:52:54,352 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:54,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1531116121, now seen corresponding path program 1 times [2023-12-21 09:52:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005659265] [2023-12-21 09:52:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:54,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:52:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:52:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:52:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:52:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:52:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:52:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:52:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:54,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:54,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005659265] [2023-12-21 09:52:54,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005659265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:54,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:54,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:54,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300625673] [2023-12-21 09:52:54,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:54,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:54,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:54,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:54,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:54,425 INFO L87 Difference]: Start difference. First operand 2931 states and 5084 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:56,163 INFO L93 Difference]: Finished difference Result 7213 states and 12740 transitions. [2023-12-21 09:52:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:52:56,163 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-12-21 09:52:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:56,200 INFO L225 Difference]: With dead ends: 7213 [2023-12-21 09:52:56,200 INFO L226 Difference]: Without dead ends: 4737 [2023-12-21 09:52:56,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:52:56,224 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1420 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:56,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 909 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 09:52:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2023-12-21 09:52:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4551. [2023-12-21 09:52:56,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 3765 states have (on average 1.6820717131474103) internal successors, (6333), 3771 states have internal predecessors, (6333), 758 states have call successors, (758), 23 states have call predecessors, (758), 27 states have return successors, (831), 756 states have call predecessors, (831), 757 states have call successors, (831) [2023-12-21 09:52:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 7922 transitions. [2023-12-21 09:52:56,381 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 7922 transitions. Word has length 117 [2023-12-21 09:52:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:56,382 INFO L495 AbstractCegarLoop]: Abstraction has 4551 states and 7922 transitions. [2023-12-21 09:52:56,382 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 7922 transitions. [2023-12-21 09:52:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 09:52:56,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:56,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:56,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:52:56,393 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:56,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1539886880, now seen corresponding path program 1 times [2023-12-21 09:52:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235199332] [2023-12-21 09:52:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:56,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:52:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:52:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:52:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:52:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:52:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:52:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:52:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235199332] [2023-12-21 09:52:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235199332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:56,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:56,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:56,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131915755] [2023-12-21 09:52:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:56,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:56,470 INFO L87 Difference]: Start difference. First operand 4551 states and 7922 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:58,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:52:58,174 INFO L93 Difference]: Finished difference Result 11290 states and 19993 transitions. [2023-12-21 09:52:58,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:52:58,174 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-21 09:52:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:52:58,205 INFO L225 Difference]: With dead ends: 11290 [2023-12-21 09:52:58,205 INFO L226 Difference]: Without dead ends: 7497 [2023-12-21 09:52:58,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:52:58,220 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1420 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:52:58,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 944 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:52:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2023-12-21 09:52:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7311. [2023-12-21 09:52:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 6032 states have (on average 1.675895225464191) internal successors, (10109), 6038 states have internal predecessors, (10109), 1251 states have call successors, (1251), 23 states have call predecessors, (1251), 27 states have return successors, (1368), 1249 states have call predecessors, (1368), 1250 states have call successors, (1368) [2023-12-21 09:52:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 12728 transitions. [2023-12-21 09:52:58,496 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 12728 transitions. Word has length 118 [2023-12-21 09:52:58,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:52:58,496 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 12728 transitions. [2023-12-21 09:52:58,497 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:52:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 12728 transitions. [2023-12-21 09:52:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 09:52:58,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:52:58,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:52:58,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:52:58,512 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:52:58,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:52:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1538636259, now seen corresponding path program 1 times [2023-12-21 09:52:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:52:58,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189658637] [2023-12-21 09:52:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:52:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:52:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:52:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:52:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:52:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:52:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:52:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:52:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:52:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:52:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:52:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:52:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:52:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:52:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:52:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:52:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:52:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:52:58,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189658637] [2023-12-21 09:52:58,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189658637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:52:58,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:52:58,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:52:58,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531604149] [2023-12-21 09:52:58,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:52:58,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:52:58,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:52:58,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:52:58,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:52:58,606 INFO L87 Difference]: Start difference. First operand 7311 states and 12728 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:00,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:00,232 INFO L93 Difference]: Finished difference Result 18649 states and 33013 transitions. [2023-12-21 09:53:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:53:00,232 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-21 09:53:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:00,321 INFO L225 Difference]: With dead ends: 18649 [2023-12-21 09:53:00,322 INFO L226 Difference]: Without dead ends: 12482 [2023-12-21 09:53:00,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:53:00,353 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1422 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:00,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 925 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:53:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12482 states. [2023-12-21 09:53:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12482 to 12296. [2023-12-21 09:53:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12296 states, 10195 states have (on average 1.6756253065228053) internal successors, (17083), 10201 states have internal predecessors, (17083), 2073 states have call successors, (2073), 23 states have call predecessors, (2073), 27 states have return successors, (2268), 2071 states have call predecessors, (2268), 2072 states have call successors, (2268) [2023-12-21 09:53:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12296 states to 12296 states and 21424 transitions. [2023-12-21 09:53:00,997 INFO L78 Accepts]: Start accepts. Automaton has 12296 states and 21424 transitions. Word has length 119 [2023-12-21 09:53:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:00,997 INFO L495 AbstractCegarLoop]: Abstraction has 12296 states and 21424 transitions. [2023-12-21 09:53:00,997 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 12296 states and 21424 transitions. [2023-12-21 09:53:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 09:53:01,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:01,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:01,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:53:01,017 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:01,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:01,017 INFO L85 PathProgramCache]: Analyzing trace with hash -613627278, now seen corresponding path program 1 times [2023-12-21 09:53:01,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:01,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405502199] [2023-12-21 09:53:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:01,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:53:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:53:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:53:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:53:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:53:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:53:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:53:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:01,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:01,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405502199] [2023-12-21 09:53:01,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405502199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:01,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:01,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:53:01,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048564513] [2023-12-21 09:53:01,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:01,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:53:01,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:53:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:53:01,095 INFO L87 Difference]: Start difference. First operand 12296 states and 21424 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:02,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:02,922 INFO L93 Difference]: Finished difference Result 29615 states and 52196 transitions. [2023-12-21 09:53:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:53:02,923 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-21 09:53:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:02,978 INFO L225 Difference]: With dead ends: 29615 [2023-12-21 09:53:02,979 INFO L226 Difference]: Without dead ends: 19442 [2023-12-21 09:53:03,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:53:03,002 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1416 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:03,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 895 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:53:03,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19442 states. [2023-12-21 09:53:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19442 to 19256. [2023-12-21 09:53:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19256 states, 15952 states have (on average 1.6534603811434303) internal successors, (26376), 15958 states have internal predecessors, (26376), 3276 states have call successors, (3276), 23 states have call predecessors, (3276), 27 states have return successors, (3615), 3274 states have call predecessors, (3615), 3275 states have call successors, (3615) [2023-12-21 09:53:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19256 states to 19256 states and 33267 transitions. [2023-12-21 09:53:03,591 INFO L78 Accepts]: Start accepts. Automaton has 19256 states and 33267 transitions. Word has length 120 [2023-12-21 09:53:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:03,592 INFO L495 AbstractCegarLoop]: Abstraction has 19256 states and 33267 transitions. [2023-12-21 09:53:03,592 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 19256 states and 33267 transitions. [2023-12-21 09:53:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 09:53:03,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:03,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:03,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:53:03,613 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:03,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1200449278, now seen corresponding path program 1 times [2023-12-21 09:53:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136324404] [2023-12-21 09:53:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:03,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:53:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:53:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:53:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:53:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:53:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:53:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:53:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:03,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136324404] [2023-12-21 09:53:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136324404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:53:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38922129] [2023-12-21 09:53:03,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:03,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:53:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:03,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:53:03,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:53:03,684 INFO L87 Difference]: Start difference. First operand 19256 states and 33267 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:05,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:05,545 INFO L93 Difference]: Finished difference Result 51056 states and 89729 transitions. [2023-12-21 09:53:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:53:05,554 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-12-21 09:53:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:05,659 INFO L225 Difference]: With dead ends: 51056 [2023-12-21 09:53:05,659 INFO L226 Difference]: Without dead ends: 34571 [2023-12-21 09:53:05,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:53:05,703 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1411 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:05,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 910 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 09:53:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34571 states. [2023-12-21 09:53:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34571 to 34385. [2023-12-21 09:53:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34385 states, 28631 states have (on average 1.6506933044602006) internal successors, (47261), 28637 states have internal predecessors, (47261), 5726 states have call successors, (5726), 23 states have call predecessors, (5726), 27 states have return successors, (6339), 5724 states have call predecessors, (6339), 5725 states have call successors, (6339) [2023-12-21 09:53:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34385 states to 34385 states and 59326 transitions. [2023-12-21 09:53:06,758 INFO L78 Accepts]: Start accepts. Automaton has 34385 states and 59326 transitions. Word has length 121 [2023-12-21 09:53:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:06,758 INFO L495 AbstractCegarLoop]: Abstraction has 34385 states and 59326 transitions. [2023-12-21 09:53:06,758 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 34385 states and 59326 transitions. [2023-12-21 09:53:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 09:53:06,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:06,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:06,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 09:53:06,780 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:06,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:06,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1193153000, now seen corresponding path program 1 times [2023-12-21 09:53:06,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:06,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714602817] [2023-12-21 09:53:06,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:06,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:53:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:53:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:53:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:53:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:53:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:53:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:53:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:06,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:06,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714602817] [2023-12-21 09:53:06,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714602817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:06,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:06,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:53:06,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752403603] [2023-12-21 09:53:06,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:06,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:53:06,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:06,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:53:06,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:53:06,869 INFO L87 Difference]: Start difference. First operand 34385 states and 59326 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:09,799 INFO L93 Difference]: Finished difference Result 93938 states and 164323 transitions. [2023-12-21 09:53:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:53:09,799 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-21 09:53:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:10,241 INFO L225 Difference]: With dead ends: 93938 [2023-12-21 09:53:10,241 INFO L226 Difference]: Without dead ends: 63247 [2023-12-21 09:53:10,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:53:10,292 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1412 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:10,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 915 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:53:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63247 states. [2023-12-21 09:53:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63247 to 63061. [2023-12-21 09:53:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63061 states, 52794 states have (on average 1.6470242830624693) internal successors, (86953), 52800 states have internal predecessors, (86953), 10239 states have call successors, (10239), 23 states have call predecessors, (10239), 27 states have return successors, (11384), 10237 states have call predecessors, (11384), 10238 states have call successors, (11384) [2023-12-21 09:53:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63061 states to 63061 states and 108576 transitions. [2023-12-21 09:53:12,826 INFO L78 Accepts]: Start accepts. Automaton has 63061 states and 108576 transitions. Word has length 122 [2023-12-21 09:53:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:12,826 INFO L495 AbstractCegarLoop]: Abstraction has 63061 states and 108576 transitions. [2023-12-21 09:53:12,826 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:12,826 INFO L276 IsEmpty]: Start isEmpty. Operand 63061 states and 108576 transitions. [2023-12-21 09:53:13,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 09:53:13,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:13,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:13,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 09:53:13,005 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:13,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash -793476766, now seen corresponding path program 1 times [2023-12-21 09:53:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281316] [2023-12-21 09:53:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:13,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:53:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:53:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:53:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:53:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:53:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:53:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:53:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:13,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:13,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281316] [2023-12-21 09:53:13,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:13,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:13,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:53:13,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970226277] [2023-12-21 09:53:13,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:13,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:53:13,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:13,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:53:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:53:13,072 INFO L87 Difference]: Start difference. First operand 63061 states and 108576 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:16,654 INFO L93 Difference]: Finished difference Result 118318 states and 207475 transitions. [2023-12-21 09:53:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:53:16,654 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-12-21 09:53:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:17,187 INFO L225 Difference]: With dead ends: 118318 [2023-12-21 09:53:17,188 INFO L226 Difference]: Without dead ends: 118133 [2023-12-21 09:53:17,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 09:53:17,228 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1407 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:17,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 910 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:53:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118133 states. [2023-12-21 09:53:20,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118133 to 117947. [2023-12-21 09:53:21,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117947 states, 99312 states have (on average 1.6423292250684711) internal successors, (163103), 99318 states have internal predecessors, (163103), 18607 states have call successors, (18607), 23 states have call predecessors, (18607), 27 states have return successors, (20798), 18605 states have call predecessors, (20798), 18606 states have call successors, (20798) [2023-12-21 09:53:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117947 states to 117947 states and 202508 transitions. [2023-12-21 09:53:21,463 INFO L78 Accepts]: Start accepts. Automaton has 117947 states and 202508 transitions. Word has length 123 [2023-12-21 09:53:21,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:21,463 INFO L495 AbstractCegarLoop]: Abstraction has 117947 states and 202508 transitions. [2023-12-21 09:53:21,463 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 117947 states and 202508 transitions. [2023-12-21 09:53:21,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-21 09:53:21,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:21,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:21,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:53:21,786 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:21,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:21,787 INFO L85 PathProgramCache]: Analyzing trace with hash -725374343, now seen corresponding path program 1 times [2023-12-21 09:53:21,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:21,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099799599] [2023-12-21 09:53:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:21,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:53:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:53:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:53:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:53:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:53:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:53:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 09:53:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:21,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099799599] [2023-12-21 09:53:21,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099799599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:21,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:21,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 09:53:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421000350] [2023-12-21 09:53:21,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:21,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 09:53:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 09:53:21,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:53:21,993 INFO L87 Difference]: Start difference. First operand 117947 states and 202508 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:27,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:27,575 INFO L93 Difference]: Finished difference Result 118664 states and 206963 transitions. [2023-12-21 09:53:27,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 09:53:27,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2023-12-21 09:53:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:28,036 INFO L225 Difference]: With dead ends: 118664 [2023-12-21 09:53:28,037 INFO L226 Difference]: Without dead ends: 118486 [2023-12-21 09:53:28,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-12-21 09:53:28,082 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 2280 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 5485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:28,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 1230 Invalid, 5485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 09:53:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118486 states. [2023-12-21 09:53:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118486 to 118127. [2023-12-21 09:53:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118127 states, 99448 states have (on average 1.6421546939103853) internal successors, (163309), 99455 states have internal predecessors, (163309), 18636 states have call successors, (18636), 36 states have call predecessors, (18636), 42 states have return successors, (20831), 18635 states have call predecessors, (20831), 18634 states have call successors, (20831) [2023-12-21 09:53:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118127 states to 118127 states and 202776 transitions. [2023-12-21 09:53:32,405 INFO L78 Accepts]: Start accepts. Automaton has 118127 states and 202776 transitions. Word has length 124 [2023-12-21 09:53:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:32,405 INFO L495 AbstractCegarLoop]: Abstraction has 118127 states and 202776 transitions. [2023-12-21 09:53:32,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 118127 states and 202776 transitions. [2023-12-21 09:53:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 09:53:32,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:32,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:32,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 09:53:32,474 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:32,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1082518003, now seen corresponding path program 1 times [2023-12-21 09:53:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158477780] [2023-12-21 09:53:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:53:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:53:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:53:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:53:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:53:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:53:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:53:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:32,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:32,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158477780] [2023-12-21 09:53:32,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158477780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:32,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:32,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 09:53:32,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356364692] [2023-12-21 09:53:32,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:32,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 09:53:32,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 09:53:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:53:32,715 INFO L87 Difference]: Start difference. First operand 118127 states and 202776 transitions. Second operand has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 10 states have internal predecessors, (80), 8 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-21 09:53:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:38,968 INFO L93 Difference]: Finished difference Result 119362 states and 208144 transitions. [2023-12-21 09:53:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-21 09:53:38,968 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 10 states have internal predecessors, (80), 8 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 125 [2023-12-21 09:53:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:39,460 INFO L225 Difference]: With dead ends: 119362 [2023-12-21 09:53:39,460 INFO L226 Difference]: Without dead ends: 118988 [2023-12-21 09:53:39,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=381, Invalid=1875, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 09:53:39,502 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 2498 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 6991 mSolverCounterSat, 991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 7982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 6991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:39,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 2395 Invalid, 7982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 6991 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 09:53:39,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118988 states. [2023-12-21 09:53:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118988 to 118338. [2023-12-21 09:53:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118338 states, 99601 states have (on average 1.6419212658507445) internal successors, (163537), 99613 states have internal predecessors, (163537), 18690 states have call successors, (18690), 39 states have call predecessors, (18690), 46 states have return successors, (20893), 18685 states have call predecessors, (20893), 18684 states have call successors, (20893) [2023-12-21 09:53:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118338 states to 118338 states and 203120 transitions. [2023-12-21 09:53:43,604 INFO L78 Accepts]: Start accepts. Automaton has 118338 states and 203120 transitions. Word has length 125 [2023-12-21 09:53:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:43,605 INFO L495 AbstractCegarLoop]: Abstraction has 118338 states and 203120 transitions. [2023-12-21 09:53:43,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 10 states have internal predecessors, (80), 8 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-21 09:53:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 118338 states and 203120 transitions. [2023-12-21 09:53:43,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 09:53:43,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:43,654 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:53:43,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 09:53:43,654 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:43,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash -51573117, now seen corresponding path program 1 times [2023-12-21 09:53:43,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:43,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179560326] [2023-12-21 09:53:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:43,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:53:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:53:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:53:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:53:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:53:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:53:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:53:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:53:43,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179560326] [2023-12-21 09:53:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179560326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:43,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:53:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650613267] [2023-12-21 09:53:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:43,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:53:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:53:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:53:43,861 INFO L87 Difference]: Start difference. First operand 118338 states and 203120 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:53:49,312 INFO L93 Difference]: Finished difference Result 120569 states and 210106 transitions. [2023-12-21 09:53:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 09:53:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2023-12-21 09:53:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:53:49,797 INFO L225 Difference]: With dead ends: 120569 [2023-12-21 09:53:49,797 INFO L226 Difference]: Without dead ends: 120241 [2023-12-21 09:53:49,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 09:53:49,836 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2288 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 5421 mSolverCounterSat, 866 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 6287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 5421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:53:49,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 1739 Invalid, 6287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [866 Valid, 5421 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 09:53:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120241 states. [2023-12-21 09:53:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120241 to 118925. [2023-12-21 09:53:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118925 states, 100040 states have (on average 1.6412734906037585) internal successors, (164193), 100056 states have internal predecessors, (164193), 18801 states have call successors, (18801), 67 states have call predecessors, (18801), 83 states have return successors, (21028), 18801 states have call predecessors, (21028), 18789 states have call successors, (21028) [2023-12-21 09:53:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118925 states to 118925 states and 204022 transitions. [2023-12-21 09:53:53,877 INFO L78 Accepts]: Start accepts. Automaton has 118925 states and 204022 transitions. Word has length 128 [2023-12-21 09:53:53,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:53:53,878 INFO L495 AbstractCegarLoop]: Abstraction has 118925 states and 204022 transitions. [2023-12-21 09:53:53,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:53:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 118925 states and 204022 transitions. [2023-12-21 09:53:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 09:53:53,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:53:53,914 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, 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 09:53:53,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 09:53:53,914 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:53:53,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:53:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1885596898, now seen corresponding path program 1 times [2023-12-21 09:53:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:53:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777490380] [2023-12-21 09:53:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:53:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:53:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:53:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:53:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:53:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:53:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:53:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:53:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:53:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:53:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:53:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:53:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:53:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:53:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:53:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:53:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 09:53:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:53:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777490380] [2023-12-21 09:53:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777490380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:53:54,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:53:54,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 09:53:54,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755403822] [2023-12-21 09:53:54,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:53:54,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 09:53:54,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:53:54,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 09:53:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:53:54,517 INFO L87 Difference]: Start difference. First operand 118925 states and 204022 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (16), 8 states have call predecessors, (16), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-21 09:54:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:54:00,364 INFO L93 Difference]: Finished difference Result 120752 states and 210418 transitions. [2023-12-21 09:54:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 09:54:00,365 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (16), 8 states have call predecessors, (16), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 129 [2023-12-21 09:54:00,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:54:00,849 INFO L225 Difference]: With dead ends: 120752 [2023-12-21 09:54:00,849 INFO L226 Difference]: Without dead ends: 120208 [2023-12-21 09:54:00,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=390, Invalid=1680, Unknown=0, NotChecked=0, Total=2070 [2023-12-21 09:54:00,888 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 3197 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 6736 mSolverCounterSat, 1124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3215 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 7860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1124 IncrementalHoareTripleChecker+Valid, 6736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:54:00,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3215 Valid, 2258 Invalid, 7860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1124 Valid, 6736 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 09:54:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120208 states. [2023-12-21 09:54:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120208 to 118923. [2023-12-21 09:54:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118923 states, 100038 states have (on average 1.6412763150002998) internal successors, (164190), 100055 states have internal predecessors, (164190), 18801 states have call successors, (18801), 67 states have call predecessors, (18801), 83 states have return successors, (21026), 18800 states have call predecessors, (21026), 18789 states have call successors, (21026) [2023-12-21 09:54:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118923 states to 118923 states and 204017 transitions. [2023-12-21 09:54:05,074 INFO L78 Accepts]: Start accepts. Automaton has 118923 states and 204017 transitions. Word has length 129 [2023-12-21 09:54:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:54:05,074 INFO L495 AbstractCegarLoop]: Abstraction has 118923 states and 204017 transitions. [2023-12-21 09:54:05,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (16), 8 states have call predecessors, (16), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-21 09:54:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 118923 states and 204017 transitions. [2023-12-21 09:54:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 09:54:05,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:54:05,105 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, 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 09:54:05,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 09:54:05,105 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:54:05,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:54:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1159582332, now seen corresponding path program 2 times [2023-12-21 09:54:05,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:54:05,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98849595] [2023-12-21 09:54:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:54:05,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:54:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:54:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:54:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:54:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:54:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:54:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:54:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:54:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:54:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:54:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:54:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:54:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:54:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:54:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:54:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 09:54:05,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:54:05,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98849595] [2023-12-21 09:54:05,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98849595] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:54:05,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263250112] [2023-12-21 09:54:05,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 09:54:05,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:54:05,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:54:05,278 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:54:05,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 09:54:05,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 09:54:05,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 09:54:05,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 09:54:05,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:54:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 09:54:05,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:54:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:54:06,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263250112] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:54:06,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:54:06,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 27 [2023-12-21 09:54:06,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437560764] [2023-12-21 09:54:06,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:54:06,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 09:54:06,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:54:06,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 09:54:06,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2023-12-21 09:54:06,368 INFO L87 Difference]: Start difference. First operand 118923 states and 204017 transitions. Second operand has 27 states, 26 states have (on average 9.153846153846153) internal successors, (238), 19 states have internal predecessors, (238), 7 states have call successors, (46), 12 states have call predecessors, (46), 9 states have return successors, (38), 8 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-21 09:54:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:54:21,265 INFO L93 Difference]: Finished difference Result 358469 states and 631523 transitions. [2023-12-21 09:54:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-21 09:54:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 9.153846153846153) internal successors, (238), 19 states have internal predecessors, (238), 7 states have call successors, (46), 12 states have call predecessors, (46), 9 states have return successors, (38), 8 states have call predecessors, (38), 7 states have call successors, (38) Word has length 129 [2023-12-21 09:54:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:54:22,738 INFO L225 Difference]: With dead ends: 358469 [2023-12-21 09:54:22,738 INFO L226 Difference]: Without dead ends: 357546 [2023-12-21 09:54:23,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1688 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1117, Invalid=5689, Unknown=0, NotChecked=0, Total=6806 [2023-12-21 09:54:23,066 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 4627 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 12339 mSolverCounterSat, 1725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 5567 SdHoareTripleChecker+Invalid, 14064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1725 IncrementalHoareTripleChecker+Valid, 12339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:54:23,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 5567 Invalid, 14064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1725 Valid, 12339 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-21 09:54:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357546 states. [2023-12-21 09:54:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357546 to 237597. [2023-12-21 09:54:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237597 states, 199896 states have (on average 1.6414185376395727) internal successors, (328113), 199924 states have internal predecessors, (328113), 37542 states have call successors, (37542), 132 states have call predecessors, (37542), 158 states have return successors, (44155), 37540 states have call predecessors, (44155), 37520 states have call successors, (44155) [2023-12-21 09:54:34,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237597 states to 237597 states and 409810 transitions. [2023-12-21 09:54:34,535 INFO L78 Accepts]: Start accepts. Automaton has 237597 states and 409810 transitions. Word has length 129 [2023-12-21 09:54:34,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:54:34,536 INFO L495 AbstractCegarLoop]: Abstraction has 237597 states and 409810 transitions. [2023-12-21 09:54:34,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 9.153846153846153) internal successors, (238), 19 states have internal predecessors, (238), 7 states have call successors, (46), 12 states have call predecessors, (46), 9 states have return successors, (38), 8 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-21 09:54:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 237597 states and 409810 transitions.