/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_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:40:54,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:40:54,887 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 09:40:54,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:40:54,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:40:54,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:40:54,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:40:54,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:40:54,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:40:54,920 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:40:54,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:40:54,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:40:54,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:40:54,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:40:54,922 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:40:54,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:40:54,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:40:54,922 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:40:54,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:40:54,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:40:54,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:40:54,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:40:54,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:40:54,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:40:54,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:40:54,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:40:54,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:40:54,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:40:54,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:40:54,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:40:54,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:40:54,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:40:54,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:40:55,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:40:55,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:40:55,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:40:55,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:40:55,105 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:40:55,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2023-12-21 09:40:56,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:40:56,321 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:40:56,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2023-12-21 09:40:56,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47edebe2f/c2ba87a340794eba97aa52c524f02c8e/FLAG2d60ba5d7 [2023-12-21 09:40:56,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47edebe2f/c2ba87a340794eba97aa52c524f02c8e [2023-12-21 09:40:56,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:40:56,355 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:40:56,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:40:56,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:40:56,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:40:56,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:40:56" (1/1) ... [2023-12-21 09:40:56,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7886fe32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:56, skipping insertion in model container [2023-12-21 09:40:56,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:40:56" (1/1) ... [2023-12-21 09:40:56,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:40:56,733 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_spec1_product26.cil.c[21785,21798] [2023-12-21 09:40:56,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:40:56,894 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:40:56,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-21 09:40:56,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [392] [2023-12-21 09:40:56,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [504] [2023-12-21 09:40:56,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [855] [2023-12-21 09:40:56,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [890] [2023-12-21 09:40:56,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1112] [2023-12-21 09:40:56,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1121] [2023-12-21 09:40:56,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2181] [2023-12-21 09:40:56,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2198] [2023-12-21 09:40:56,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2226] [2023-12-21 09:40:56,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2629] [2023-12-21 09:40:56,934 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_spec1_product26.cil.c[21785,21798] [2023-12-21 09:40:56,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:40:57,010 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:40:57,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57 WrapperNode [2023-12-21 09:40:57,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:40:57,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:40:57,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:40:57,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:40:57,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,133 INFO L138 Inliner]: procedures = 131, calls = 205, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1077 [2023-12-21 09:40:57,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:40:57,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:40:57,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:40:57,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:40:57,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,175 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 09:40:57,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:40:57,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:40:57,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:40:57,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:40:57,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (1/1) ... [2023-12-21 09:40:57,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:40:57,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:40:57,277 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 09:40:57,344 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 09:40:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-21 09:40:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-21 09:40:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-21 09:40:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-21 09:40:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-21 09:40:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-21 09:40:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-21 09:40:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-21 09:40:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 09:40:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 09:40:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:40:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:40:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 09:40:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 09:40:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 09:40:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 09:40:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-21 09:40:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 09:40:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 09:40:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-21 09:40:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 09:40:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:40:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-21 09:40:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 09:40:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 09:40:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 09:40:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-21 09:40:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-21 09:40:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:40:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:40:57,571 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:40:57,573 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:40:58,171 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:40:58,214 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:40:58,215 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:40:58,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:40:58 BoogieIcfgContainer [2023-12-21 09:40:58,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:40:58,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:40:58,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:40:58,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:40:58,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:40:56" (1/3) ... [2023-12-21 09:40:58,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c20e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:40:58, skipping insertion in model container [2023-12-21 09:40:58,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:40:57" (2/3) ... [2023-12-21 09:40:58,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c20e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:40:58, skipping insertion in model container [2023-12-21 09:40:58,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:40:58" (3/3) ... [2023-12-21 09:40:58,221 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2023-12-21 09:40:58,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:40:58,233 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:40:58,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:40:58,312 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;@13204cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:40:58,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:40:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 284 states have (on average 1.619718309859155) internal successors, (460), 289 states have internal predecessors, (460), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 09:40:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 09:40:58,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:40:58,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:40:58,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:40:58,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:40:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2006621366, now seen corresponding path program 1 times [2023-12-21 09:40:58,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:40:58,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864691712] [2023-12-21 09:40:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:40:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:40:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:40:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:40:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:40:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:40:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:40:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:40:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:40:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:40:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:40:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:40:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:40:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:40:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 09:40:58,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:40:58,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864691712] [2023-12-21 09:40:58,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864691712] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:40:58,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287406097] [2023-12-21 09:40:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:40:58,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:40:58,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:40:58,853 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 09:40:58,882 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 09:40:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 09:40:59,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:40:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:40:59,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:40:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287406097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:40:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:40:59,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 09:40:59,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559383173] [2023-12-21 09:40:59,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:40:59,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 09:40:59,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:40:59,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 09:40:59,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:40:59,216 INFO L87 Difference]: Start difference. First operand has 371 states, 284 states have (on average 1.619718309859155) internal successors, (460), 289 states have internal predecessors, (460), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:40:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:40:59,296 INFO L93 Difference]: Finished difference Result 554 states and 860 transitions. [2023-12-21 09:40:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 09:40:59,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-21 09:40:59,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:40:59,307 INFO L225 Difference]: With dead ends: 554 [2023-12-21 09:40:59,307 INFO L226 Difference]: Without dead ends: 368 [2023-12-21 09:40:59,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:40:59,314 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:40:59,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 563 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:40:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-21 09:40:59,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-12-21 09:40:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 282 states have (on average 1.6063829787234043) internal successors, (453), 286 states have internal predecessors, (453), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-21 09:40:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 576 transitions. [2023-12-21 09:40:59,381 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 576 transitions. Word has length 92 [2023-12-21 09:40:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:40:59,382 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 576 transitions. [2023-12-21 09:40:59,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:40:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 576 transitions. [2023-12-21 09:40:59,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 09:40:59,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:40:59,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:40:59,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 09:40:59,595 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 09:40:59,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:40:59,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:40:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash 82102598, now seen corresponding path program 1 times [2023-12-21 09:40:59,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:40:59,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208402422] [2023-12-21 09:40:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:40:59,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:40:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:40:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:40:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:40:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:40:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:40:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:40:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:40:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:40:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:40:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:40:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:40:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:40:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:40:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 09:40:59,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:40:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208402422] [2023-12-21 09:40:59,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208402422] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:40:59,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967831393] [2023-12-21 09:40:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:40:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:40:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:40:59,825 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 09:40:59,826 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 09:41:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 09:41:00,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:41:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:41:00,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:41:00,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967831393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:00,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:41:00,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:41:00,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630910741] [2023-12-21 09:41:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:00,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:41:00,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:41:00,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:41:00,082 INFO L87 Difference]: Start difference. First operand 368 states and 576 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:00,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:00,135 INFO L93 Difference]: Finished difference Result 550 states and 844 transitions. [2023-12-21 09:41:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:41:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-21 09:41:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:00,139 INFO L225 Difference]: With dead ends: 550 [2023-12-21 09:41:00,139 INFO L226 Difference]: Without dead ends: 370 [2023-12-21 09:41:00,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 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 09:41:00,144 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 0 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:00,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1119 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:41:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-21 09:41:00,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2023-12-21 09:41:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 284 states have (on average 1.602112676056338) internal successors, (455), 288 states have internal predecessors, (455), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-21 09:41:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 578 transitions. [2023-12-21 09:41:00,164 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 578 transitions. Word has length 93 [2023-12-21 09:41:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:00,164 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 578 transitions. [2023-12-21 09:41:00,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 578 transitions. [2023-12-21 09:41:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 09:41:00,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:00,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:00,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 09:41:00,374 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 09:41:00,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:00,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash 787768099, now seen corresponding path program 1 times [2023-12-21 09:41:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730360999] [2023-12-21 09:41:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:41:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:41:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:41:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:41:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:41:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:41:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:41:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:41:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:41:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:41:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:00,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730360999] [2023-12-21 09:41:00,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730360999] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:41:00,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524070778] [2023-12-21 09:41:00,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:00,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:41:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:41:00,578 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 09:41:00,600 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 09:41:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:00,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:41:00,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:41:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:41:00,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:41:00,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524070778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:00,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:41:00,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:41:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057418082] [2023-12-21 09:41:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:00,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:41:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:00,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:41:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:41:00,853 INFO L87 Difference]: Start difference. First operand 370 states and 578 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:00,909 INFO L93 Difference]: Finished difference Result 792 states and 1255 transitions. [2023-12-21 09:41:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:41:00,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-21 09:41:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:00,912 INFO L225 Difference]: With dead ends: 792 [2023-12-21 09:41:00,912 INFO L226 Difference]: Without dead ends: 444 [2023-12-21 09:41:00,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 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 09:41:00,915 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 136 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:00,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1089 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:41:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-12-21 09:41:00,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 439. [2023-12-21 09:41:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 339 states have (on average 1.6194690265486726) internal successors, (549), 343 states have internal predecessors, (549), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-21 09:41:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 700 transitions. [2023-12-21 09:41:00,939 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 700 transitions. Word has length 100 [2023-12-21 09:41:00,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:00,940 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 700 transitions. [2023-12-21 09:41:00,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:00,940 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 700 transitions. [2023-12-21 09:41:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 09:41:00,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:00,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:00,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 09:41:01,154 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 09:41:01,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:01,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1059055053, now seen corresponding path program 1 times [2023-12-21 09:41:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:01,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720609319] [2023-12-21 09:41:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:01,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:41:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:41:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:41:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:41:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:41:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:41:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:41:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:41:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:41:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:41:01,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:01,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720609319] [2023-12-21 09:41:01,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720609319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:41:01,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070184905] [2023-12-21 09:41:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:41:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:41:01,406 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 09:41:01,454 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 09:41:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:01,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 09:41:01,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:41:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 09:41:01,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:41:01,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070184905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:01,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:41:01,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 09:41:01,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062776933] [2023-12-21 09:41:01,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:01,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:41:01,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:01,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:41:01,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:41:01,697 INFO L87 Difference]: Start difference. First operand 439 states and 700 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:01,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:01,767 INFO L93 Difference]: Finished difference Result 873 states and 1394 transitions. [2023-12-21 09:41:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:41:01,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-21 09:41:01,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:01,770 INFO L225 Difference]: With dead ends: 873 [2023-12-21 09:41:01,770 INFO L226 Difference]: Without dead ends: 441 [2023-12-21 09:41:01,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:01,772 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 8 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:01,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2193 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:41:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-21 09:41:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-12-21 09:41:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.6176470588235294) internal successors, (550), 345 states have internal predecessors, (550), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2023-12-21 09:41:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 703 transitions. [2023-12-21 09:41:01,784 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 703 transitions. Word has length 101 [2023-12-21 09:41:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:01,784 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 703 transitions. [2023-12-21 09:41:01,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 703 transitions. [2023-12-21 09:41:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 09:41:01,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:01,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:01,796 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 09:41:01,997 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 09:41:01,997 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:01,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1795322067, now seen corresponding path program 1 times [2023-12-21 09:41:01,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:01,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109457301] [2023-12-21 09:41:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 09:41:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 09:41:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:41:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:41:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:41:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:41:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:41:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:41:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 09:41:02,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:02,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109457301] [2023-12-21 09:41:02,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109457301] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:41:02,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076284892] [2023-12-21 09:41:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:02,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:41:02,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:41:02,217 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 09:41:02,265 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 09:41:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 09:41:02,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:41:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 09:41:02,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:41:02,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076284892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:02,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:41:02,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 09:41:02,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277262747] [2023-12-21 09:41:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:02,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:41:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:41:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:41:02,530 INFO L87 Difference]: Start difference. First operand 441 states and 703 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:02,610 INFO L93 Difference]: Finished difference Result 875 states and 1399 transitions. [2023-12-21 09:41:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:41:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-12-21 09:41:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:02,613 INFO L225 Difference]: With dead ends: 875 [2023-12-21 09:41:02,613 INFO L226 Difference]: Without dead ends: 443 [2023-12-21 09:41:02,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:41:02,614 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 8 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:02,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2179 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:41:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-12-21 09:41:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-12-21 09:41:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.6158357771260996) internal successors, (551), 347 states have internal predecessors, (551), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2023-12-21 09:41:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 709 transitions. [2023-12-21 09:41:02,625 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 709 transitions. Word has length 102 [2023-12-21 09:41:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:02,626 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 709 transitions. [2023-12-21 09:41:02,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 709 transitions. [2023-12-21 09:41:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 09:41:02,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:02,628 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:02,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 09:41:02,834 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 09:41:02,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:02,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash 995454549, now seen corresponding path program 1 times [2023-12-21 09:41:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:02,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742777750] [2023-12-21 09:41:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 09:41:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:41:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:41:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:41:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:41:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:41:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:41:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:02,954 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:41:02,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:02,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742777750] [2023-12-21 09:41:02,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742777750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:02,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:02,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:41:02,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742577438] [2023-12-21 09:41:02,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:02,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:41:02,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:41:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:41:02,956 INFO L87 Difference]: Start difference. First operand 443 states and 709 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:04,757 INFO L93 Difference]: Finished difference Result 1033 states and 1687 transitions. [2023-12-21 09:41:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:41:04,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2023-12-21 09:41:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:04,760 INFO L225 Difference]: With dead ends: 1033 [2023-12-21 09:41:04,760 INFO L226 Difference]: Without dead ends: 609 [2023-12-21 09:41:04,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:41:04,762 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1260 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:04,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 1242 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 09:41:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-12-21 09:41:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 443. [2023-12-21 09:41:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.6158357771260996) internal successors, (551), 347 states have internal predecessors, (551), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2023-12-21 09:41:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 708 transitions. [2023-12-21 09:41:04,787 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 708 transitions. Word has length 103 [2023-12-21 09:41:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:04,788 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 708 transitions. [2023-12-21 09:41:04,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 708 transitions. [2023-12-21 09:41:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 09:41:04,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:04,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:04,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 09:41:04,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:04,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1270083603, now seen corresponding path program 2 times [2023-12-21 09:41:04,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:04,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976690503] [2023-12-21 09:41:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:04,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 09:41:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:41:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:41:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:41:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:41:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:41:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:41:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:41:04,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976690503] [2023-12-21 09:41:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976690503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:41:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163581634] [2023-12-21 09:41:04,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:04,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:41:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:04,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:41:04,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:41:04,912 INFO L87 Difference]: Start difference. First operand 443 states and 708 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:06,702 INFO L93 Difference]: Finished difference Result 1035 states and 1690 transitions. [2023-12-21 09:41:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:41:06,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2023-12-21 09:41:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:06,706 INFO L225 Difference]: With dead ends: 1035 [2023-12-21 09:41:06,706 INFO L226 Difference]: Without dead ends: 611 [2023-12-21 09:41:06,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:41:06,708 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1258 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:06,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1240 Invalid, 3343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2899 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 09:41:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-21 09:41:06,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 445. [2023-12-21 09:41:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 342 states have (on average 1.6140350877192982) internal successors, (552), 349 states have internal predecessors, (552), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2023-12-21 09:41:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 711 transitions. [2023-12-21 09:41:06,765 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 711 transitions. Word has length 104 [2023-12-21 09:41:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:06,765 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 711 transitions. [2023-12-21 09:41:06,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 711 transitions. [2023-12-21 09:41:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 09:41:06,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:06,767 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:41:06,767 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:06,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash -881003940, now seen corresponding path program 1 times [2023-12-21 09:41:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:06,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535416876] [2023-12-21 09:41:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:06,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:41:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:41:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:41:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:41:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:41:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:41:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:41:06,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:06,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535416876] [2023-12-21 09:41:06,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535416876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:06,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:06,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:41:06,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901111091] [2023-12-21 09:41:06,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:06,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:41:06,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:41:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:41:06,939 INFO L87 Difference]: Start difference. First operand 445 states and 711 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:08,775 INFO L93 Difference]: Finished difference Result 1035 states and 1689 transitions. [2023-12-21 09:41:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:41:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2023-12-21 09:41:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:08,779 INFO L225 Difference]: With dead ends: 1035 [2023-12-21 09:41:08,779 INFO L226 Difference]: Without dead ends: 611 [2023-12-21 09:41:08,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-21 09:41:08,781 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1260 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2895 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:08,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 1240 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2895 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 09:41:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-21 09:41:08,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 445. [2023-12-21 09:41:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 342 states have (on average 1.6140350877192982) internal successors, (552), 349 states have internal predecessors, (552), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2023-12-21 09:41:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 711 transitions. [2023-12-21 09:41:08,801 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 711 transitions. Word has length 105 [2023-12-21 09:41:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:08,801 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 711 transitions. [2023-12-21 09:41:08,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 09:41:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 711 transitions. [2023-12-21 09:41:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 09:41:08,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:08,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:08,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:41:08,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:08,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:08,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1030038618, now seen corresponding path program 1 times [2023-12-21 09:41:08,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:08,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688332082] [2023-12-21 09:41:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:08,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:41:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:41:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:41:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:41:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:41:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:41:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 09:41:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688332082] [2023-12-21 09:41:08,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688332082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:08,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:08,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:41:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34994985] [2023-12-21 09:41:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:08,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:41:08,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:41:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:41:08,975 INFO L87 Difference]: Start difference. First operand 445 states and 711 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 09:41:11,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:11,494 INFO L93 Difference]: Finished difference Result 1033 states and 1684 transitions. [2023-12-21 09:41:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:41:11,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2023-12-21 09:41:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:11,497 INFO L225 Difference]: With dead ends: 1033 [2023-12-21 09:41:11,498 INFO L226 Difference]: Without dead ends: 611 [2023-12-21 09:41:11,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 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 09:41:11,499 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1268 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 5267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:11,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1717 Invalid, 5267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 09:41:11,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-21 09:41:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 445. [2023-12-21 09:41:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 342 states have (on average 1.6140350877192982) internal successors, (552), 349 states have internal predecessors, (552), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2023-12-21 09:41:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 710 transitions. [2023-12-21 09:41:11,517 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 710 transitions. Word has length 105 [2023-12-21 09:41:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:11,518 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 710 transitions. [2023-12-21 09:41:11,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 09:41:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 710 transitions. [2023-12-21 09:41:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 09:41:11,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:11,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:11,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:41:11,519 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:11,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1128516902, now seen corresponding path program 2 times [2023-12-21 09:41:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812978639] [2023-12-21 09:41:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:41:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:41:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:41:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:41:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:41:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:41:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 09:41:11,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:11,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812978639] [2023-12-21 09:41:11,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812978639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:11,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:41:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182497186] [2023-12-21 09:41:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:11,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:41:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:41:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:41:11,651 INFO L87 Difference]: Start difference. First operand 445 states and 710 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 09:41:14,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:14,043 INFO L93 Difference]: Finished difference Result 1035 states and 1690 transitions. [2023-12-21 09:41:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:41:14,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 106 [2023-12-21 09:41:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:14,046 INFO L225 Difference]: With dead ends: 1035 [2023-12-21 09:41:14,046 INFO L226 Difference]: Without dead ends: 613 [2023-12-21 09:41:14,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 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 09:41:14,048 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1260 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 5328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:14,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 1719 Invalid, 5328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 4889 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 09:41:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-21 09:41:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 447. [2023-12-21 09:41:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 343 states have (on average 1.6122448979591837) internal successors, (553), 351 states have internal predecessors, (553), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2023-12-21 09:41:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 716 transitions. [2023-12-21 09:41:14,081 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 716 transitions. Word has length 106 [2023-12-21 09:41:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:14,082 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 716 transitions. [2023-12-21 09:41:14,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 09:41:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 716 transitions. [2023-12-21 09:41:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 09:41:14,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:14,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:14,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 09:41:14,084 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:14,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1140959391, now seen corresponding path program 1 times [2023-12-21 09:41:14,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:14,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576305208] [2023-12-21 09:41:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:41:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:41:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:41:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:41:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:41:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:41:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 09:41:14,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:14,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576305208] [2023-12-21 09:41:14,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576305208] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:41:14,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543105307] [2023-12-21 09:41:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:14,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:41:14,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:41:14,236 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 09:41:14,261 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 09:41:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:14,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:41:14,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:41:14,477 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:14,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:41:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:14,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543105307] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:41:14,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:41:14,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-21 09:41:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646530593] [2023-12-21 09:41:14,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:41:14,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 09:41:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 09:41:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:41:14,536 INFO L87 Difference]: Start difference. First operand 447 states and 716 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-21 09:41:16,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:16,676 INFO L93 Difference]: Finished difference Result 1474 states and 2501 transitions. [2023-12-21 09:41:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 09:41:16,677 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 107 [2023-12-21 09:41:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:16,703 INFO L225 Difference]: With dead ends: 1474 [2023-12-21 09:41:16,703 INFO L226 Difference]: Without dead ends: 1053 [2023-12-21 09:41:16,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-21 09:41:16,705 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 2520 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 6040 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 6860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 6040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:16,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2541 Valid, 2069 Invalid, 6860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 6040 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 09:41:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-12-21 09:41:16,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 872. [2023-12-21 09:41:16,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 689 states have (on average 1.6560232220609579) internal successors, (1141), 697 states have internal predecessors, (1141), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2023-12-21 09:41:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1472 transitions. [2023-12-21 09:41:16,774 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1472 transitions. Word has length 107 [2023-12-21 09:41:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:16,774 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1472 transitions. [2023-12-21 09:41:16,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-21 09:41:16,774 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1472 transitions. [2023-12-21 09:41:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 09:41:16,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:16,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:16,798 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 09:41:16,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:41:16,984 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:16,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:16,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1776442800, now seen corresponding path program 1 times [2023-12-21 09:41:16,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:16,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935294781] [2023-12-21 09:41:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:16,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:41:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:41:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:41:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:41:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:41:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:41:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:17,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:17,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935294781] [2023-12-21 09:41:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935294781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:17,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:17,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761131139] [2023-12-21 09:41:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:17,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:17,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:17,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:17,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:17,049 INFO L87 Difference]: Start difference. First operand 872 states and 1472 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:18,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:18,538 INFO L93 Difference]: Finished difference Result 2249 states and 3890 transitions. [2023-12-21 09:41:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:18,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-21 09:41:18,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:18,544 INFO L225 Difference]: With dead ends: 2249 [2023-12-21 09:41:18,545 INFO L226 Difference]: Without dead ends: 1445 [2023-12-21 09:41:18,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:18,547 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1384 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:18,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 934 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2023-12-21 09:41:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1274. [2023-12-21 09:41:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1012 states have (on average 1.66798418972332) internal successors, (1688), 1020 states have internal predecessors, (1688), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2023-12-21 09:41:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2187 transitions. [2023-12-21 09:41:18,587 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2187 transitions. Word has length 111 [2023-12-21 09:41:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:18,587 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 2187 transitions. [2023-12-21 09:41:18,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2187 transitions. [2023-12-21 09:41:18,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 09:41:18,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:18,594 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:18,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:41:18,594 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:18,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:18,595 INFO L85 PathProgramCache]: Analyzing trace with hash 101619883, now seen corresponding path program 1 times [2023-12-21 09:41:18,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:18,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182418020] [2023-12-21 09:41:18,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:18,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:41:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:41:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:41:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:41:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:41:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:41:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:18,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:18,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182418020] [2023-12-21 09:41:18,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182418020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:18,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:18,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:18,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451810614] [2023-12-21 09:41:18,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:18,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:18,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:18,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:18,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:18,677 INFO L87 Difference]: Start difference. First operand 1274 states and 2187 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:20,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:20,130 INFO L93 Difference]: Finished difference Result 3252 states and 5667 transitions. [2023-12-21 09:41:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:20,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-21 09:41:20,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:20,140 INFO L225 Difference]: With dead ends: 3252 [2023-12-21 09:41:20,140 INFO L226 Difference]: Without dead ends: 2096 [2023-12-21 09:41:20,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:20,144 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1380 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:20,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 909 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2023-12-21 09:41:20,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1925. [2023-12-21 09:41:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1544 states have (on average 1.6735751295336787) internal successors, (2584), 1552 states have internal predecessors, (2584), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2023-12-21 09:41:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3321 transitions. [2023-12-21 09:41:20,226 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3321 transitions. Word has length 112 [2023-12-21 09:41:20,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:20,226 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 3321 transitions. [2023-12-21 09:41:20,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:20,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3321 transitions. [2023-12-21 09:41:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 09:41:20,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:20,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:20,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:41:20,233 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:20,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1393174782, now seen corresponding path program 1 times [2023-12-21 09:41:20,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:20,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803877206] [2023-12-21 09:41:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:20,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:41:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:41:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:41:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:41:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:41:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:41:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:20,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:20,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803877206] [2023-12-21 09:41:20,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803877206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:20,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252686109] [2023-12-21 09:41:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:20,300 INFO L87 Difference]: Start difference. First operand 1925 states and 3321 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:21,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:21,581 INFO L93 Difference]: Finished difference Result 4776 states and 8385 transitions. [2023-12-21 09:41:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:21,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-21 09:41:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:21,592 INFO L225 Difference]: With dead ends: 4776 [2023-12-21 09:41:21,593 INFO L226 Difference]: Without dead ends: 3097 [2023-12-21 09:41:21,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:21,597 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1379 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:21,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 906 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:41:21,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2023-12-21 09:41:21,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2926. [2023-12-21 09:41:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2383 states have (on average 1.678556441460344) internal successors, (4000), 2391 states have internal predecessors, (4000), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2023-12-21 09:41:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 5077 transitions. [2023-12-21 09:41:21,693 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 5077 transitions. Word has length 113 [2023-12-21 09:41:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:21,693 INFO L495 AbstractCegarLoop]: Abstraction has 2926 states and 5077 transitions. [2023-12-21 09:41:21,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 5077 transitions. [2023-12-21 09:41:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 09:41:21,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:21,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:21,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:41:21,702 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:21,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -83919444, now seen corresponding path program 1 times [2023-12-21 09:41:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:21,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076243253] [2023-12-21 09:41:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:21,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:41:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:41:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:41:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:41:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:41:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:41:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:21,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076243253] [2023-12-21 09:41:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076243253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:21,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:21,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:21,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546036277] [2023-12-21 09:41:21,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:21,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:21,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:21,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:21,808 INFO L87 Difference]: Start difference. First operand 2926 states and 5077 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:23,188 INFO L93 Difference]: Finished difference Result 7188 states and 12698 transitions. [2023-12-21 09:41:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-21 09:41:23,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:23,204 INFO L225 Difference]: With dead ends: 7188 [2023-12-21 09:41:23,205 INFO L226 Difference]: Without dead ends: 4717 [2023-12-21 09:41:23,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:23,210 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1374 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:23,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 908 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:41:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2023-12-21 09:41:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 4546. [2023-12-21 09:41:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4546 states, 3758 states have (on average 1.682277807344332) internal successors, (6322), 3766 states have internal predecessors, (6322), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2023-12-21 09:41:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 7915 transitions. [2023-12-21 09:41:23,342 INFO L78 Accepts]: Start accepts. Automaton has 4546 states and 7915 transitions. Word has length 114 [2023-12-21 09:41:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:23,343 INFO L495 AbstractCegarLoop]: Abstraction has 4546 states and 7915 transitions. [2023-12-21 09:41:23,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4546 states and 7915 transitions. [2023-12-21 09:41:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 09:41:23,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:23,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:23,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:41:23,354 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:23,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1951062746, now seen corresponding path program 1 times [2023-12-21 09:41:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:23,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162109498] [2023-12-21 09:41:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:41:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:41:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:41:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:41:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:41:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:41:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:23,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:23,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162109498] [2023-12-21 09:41:23,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162109498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:23,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:23,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:23,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432001098] [2023-12-21 09:41:23,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:23,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:23,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:23,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:23,449 INFO L87 Difference]: Start difference. First operand 4546 states and 7915 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:25,036 INFO L93 Difference]: Finished difference Result 11265 states and 19951 transitions. [2023-12-21 09:41:25,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:25,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-21 09:41:25,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:25,082 INFO L225 Difference]: With dead ends: 11265 [2023-12-21 09:41:25,083 INFO L226 Difference]: Without dead ends: 7477 [2023-12-21 09:41:25,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:25,090 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1374 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:25,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 949 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7477 states. [2023-12-21 09:41:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7477 to 7306. [2023-12-21 09:41:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 6025 states have (on average 1.6760165975103734) internal successors, (10098), 6033 states have internal predecessors, (10098), 1253 states have call successors, (1253), 23 states have call predecessors, (1253), 27 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2023-12-21 09:41:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 12721 transitions. [2023-12-21 09:41:25,302 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 12721 transitions. Word has length 115 [2023-12-21 09:41:25,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:25,302 INFO L495 AbstractCegarLoop]: Abstraction has 7306 states and 12721 transitions. [2023-12-21 09:41:25,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 12721 transitions. [2023-12-21 09:41:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 09:41:25,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:25,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:25,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:41:25,316 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:25,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1322456016, now seen corresponding path program 1 times [2023-12-21 09:41:25,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:25,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27654079] [2023-12-21 09:41:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:25,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:41:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:41:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:41:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:41:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:41:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:41:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:25,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:25,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:25,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27654079] [2023-12-21 09:41:25,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27654079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:25,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:25,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:25,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723732183] [2023-12-21 09:41:25,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:25,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:25,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:25,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:25,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:25,393 INFO L87 Difference]: Start difference. First operand 7306 states and 12721 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:26,987 INFO L93 Difference]: Finished difference Result 18624 states and 32971 transitions. [2023-12-21 09:41:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:26,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-12-21 09:41:26,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:27,047 INFO L225 Difference]: With dead ends: 18624 [2023-12-21 09:41:27,048 INFO L226 Difference]: Without dead ends: 12462 [2023-12-21 09:41:27,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:27,065 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1371 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:27,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 919 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:41:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12462 states. [2023-12-21 09:41:27,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12462 to 12291. [2023-12-21 09:41:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12291 states, 10188 states have (on average 1.6756968983117393) internal successors, (17072), 10196 states have internal predecessors, (17072), 2075 states have call successors, (2075), 23 states have call predecessors, (2075), 27 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2023-12-21 09:41:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12291 states to 12291 states and 21417 transitions. [2023-12-21 09:41:27,497 INFO L78 Accepts]: Start accepts. Automaton has 12291 states and 21417 transitions. Word has length 116 [2023-12-21 09:41:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:27,497 INFO L495 AbstractCegarLoop]: Abstraction has 12291 states and 21417 transitions. [2023-12-21 09:41:27,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12291 states and 21417 transitions. [2023-12-21 09:41:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 09:41:27,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:27,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:27,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:41:27,515 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:27,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1005423592, now seen corresponding path program 1 times [2023-12-21 09:41:27,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:27,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406176439] [2023-12-21 09:41:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:27,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:41:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:41:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:41:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:41:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:41:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:41:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:27,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:27,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406176439] [2023-12-21 09:41:27,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406176439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:27,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:27,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:27,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60284856] [2023-12-21 09:41:27,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:27,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:27,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:27,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:27,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:27,587 INFO L87 Difference]: Start difference. First operand 12291 states and 21417 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:29,362 INFO L93 Difference]: Finished difference Result 29590 states and 52154 transitions. [2023-12-21 09:41:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-12-21 09:41:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:29,420 INFO L225 Difference]: With dead ends: 29590 [2023-12-21 09:41:29,420 INFO L226 Difference]: Without dead ends: 19422 [2023-12-21 09:41:29,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:29,445 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1370 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:29,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 882 Invalid, 2172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [501 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19422 states. [2023-12-21 09:41:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 19251. [2023-12-21 09:41:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19251 states, 15945 states have (on average 1.6534963938538727) internal successors, (26365), 15953 states have internal predecessors, (26365), 3278 states have call successors, (3278), 23 states have call predecessors, (3278), 27 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2023-12-21 09:41:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19251 states to 19251 states and 33260 transitions. [2023-12-21 09:41:30,112 INFO L78 Accepts]: Start accepts. Automaton has 19251 states and 33260 transitions. Word has length 117 [2023-12-21 09:41:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:30,113 INFO L495 AbstractCegarLoop]: Abstraction has 19251 states and 33260 transitions. [2023-12-21 09:41:30,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 19251 states and 33260 transitions. [2023-12-21 09:41:30,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 09:41:30,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:30,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:30,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 09:41:30,133 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:30,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash 330394097, now seen corresponding path program 1 times [2023-12-21 09:41:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:30,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405786331] [2023-12-21 09:41:30,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:41:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:41:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:41:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:41:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:41:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:41:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:30,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:30,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405786331] [2023-12-21 09:41:30,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405786331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:30,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:30,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:30,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073726790] [2023-12-21 09:41:30,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:30,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:30,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:30,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:30,219 INFO L87 Difference]: Start difference. First operand 19251 states and 33260 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:32,327 INFO L93 Difference]: Finished difference Result 51031 states and 89687 transitions. [2023-12-21 09:41:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:32,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-12-21 09:41:32,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:32,440 INFO L225 Difference]: With dead ends: 51031 [2023-12-21 09:41:32,440 INFO L226 Difference]: Without dead ends: 34551 [2023-12-21 09:41:32,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:32,468 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1366 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:32,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 909 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34551 states. [2023-12-21 09:41:33,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34551 to 34380. [2023-12-21 09:41:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34380 states, 28624 states have (on average 1.6507126886528787) internal successors, (47250), 28632 states have internal predecessors, (47250), 5728 states have call successors, (5728), 23 states have call predecessors, (5728), 27 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2023-12-21 09:41:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34380 states to 34380 states and 59319 transitions. [2023-12-21 09:41:33,631 INFO L78 Accepts]: Start accepts. Automaton has 34380 states and 59319 transitions. Word has length 118 [2023-12-21 09:41:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:33,631 INFO L495 AbstractCegarLoop]: Abstraction has 34380 states and 59319 transitions. [2023-12-21 09:41:33,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 34380 states and 59319 transitions. [2023-12-21 09:41:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 09:41:33,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:33,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:33,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 09:41:33,648 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:33,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1105841442, now seen corresponding path program 1 times [2023-12-21 09:41:33,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:33,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237284228] [2023-12-21 09:41:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:33,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:41:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:41:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:41:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:41:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:41:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:41:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237284228] [2023-12-21 09:41:33,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237284228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:33,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:33,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379502699] [2023-12-21 09:41:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:33,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:33,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:33,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:33,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:33,726 INFO L87 Difference]: Start difference. First operand 34380 states and 59319 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:36,505 INFO L93 Difference]: Finished difference Result 93913 states and 164281 transitions. [2023-12-21 09:41:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:36,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-12-21 09:41:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:36,866 INFO L225 Difference]: With dead ends: 93913 [2023-12-21 09:41:36,866 INFO L226 Difference]: Without dead ends: 63227 [2023-12-21 09:41:36,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:36,921 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1367 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:36,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 918 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:41:36,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63227 states. [2023-12-21 09:41:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63227 to 63056. [2023-12-21 09:41:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63056 states, 52787 states have (on average 1.6470343076893932) internal successors, (86942), 52795 states have internal predecessors, (86942), 10241 states have call successors, (10241), 23 states have call predecessors, (10241), 27 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2023-12-21 09:41:39,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63056 states to 63056 states and 108569 transitions. [2023-12-21 09:41:39,379 INFO L78 Accepts]: Start accepts. Automaton has 63056 states and 108569 transitions. Word has length 119 [2023-12-21 09:41:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:39,379 INFO L495 AbstractCegarLoop]: Abstraction has 63056 states and 108569 transitions. [2023-12-21 09:41:39,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 63056 states and 108569 transitions. [2023-12-21 09:41:39,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 09:41:39,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:39,399 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:39,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:41:39,400 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:39,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:39,400 INFO L85 PathProgramCache]: Analyzing trace with hash -553292175, now seen corresponding path program 1 times [2023-12-21 09:41:39,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:39,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528882303] [2023-12-21 09:41:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:41:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:41:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:41:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:41:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:41:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:41:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:39,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:39,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528882303] [2023-12-21 09:41:39,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528882303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:39,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:39,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:41:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930955503] [2023-12-21 09:41:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:39,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:41:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:41:39,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:41:39,516 INFO L87 Difference]: Start difference. First operand 63056 states and 108569 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:42,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:42,865 INFO L93 Difference]: Finished difference Result 118293 states and 207433 transitions. [2023-12-21 09:41:42,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:41:42,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-12-21 09:41:42,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:43,226 INFO L225 Difference]: With dead ends: 118293 [2023-12-21 09:41:43,226 INFO L226 Difference]: Without dead ends: 118113 [2023-12-21 09:41:43,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:41:43,281 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1364 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:43,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 908 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:41:43,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118113 states. [2023-12-21 09:41:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118113 to 117942. [2023-12-21 09:41:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117942 states, 99305 states have (on average 1.6423342228487992) internal successors, (163092), 99313 states have internal predecessors, (163092), 18609 states have call successors, (18609), 23 states have call predecessors, (18609), 27 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2023-12-21 09:41:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117942 states to 117942 states and 202501 transitions. [2023-12-21 09:41:46,958 INFO L78 Accepts]: Start accepts. Automaton has 117942 states and 202501 transitions. Word has length 120 [2023-12-21 09:41:46,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:41:46,958 INFO L495 AbstractCegarLoop]: Abstraction has 117942 states and 202501 transitions. [2023-12-21 09:41:46,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 09:41:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 117942 states and 202501 transitions. [2023-12-21 09:41:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 09:41:46,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:41:46,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:41:46,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 09:41:46,982 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:41:46,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:41:46,982 INFO L85 PathProgramCache]: Analyzing trace with hash -978362495, now seen corresponding path program 1 times [2023-12-21 09:41:46,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:41:46,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45332020] [2023-12-21 09:41:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:41:46,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:41:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:41:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:41:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:41:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:41:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:41:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:41:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:41:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:41:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:41:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:41:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:41:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:41:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:41:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:41:47,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:41:47,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45332020] [2023-12-21 09:41:47,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45332020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:41:47,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:41:47,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 09:41:47,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965417704] [2023-12-21 09:41:47,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:41:47,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 09:41:47,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:41:47,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 09:41:47,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:41:47,717 INFO L87 Difference]: Start difference. First operand 117942 states and 202501 transitions. Second operand has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 09:41:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:41:58,168 INFO L93 Difference]: Finished difference Result 235448 states and 416309 transitions. [2023-12-21 09:41:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 09:41:58,169 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 121 [2023-12-21 09:41:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:41:59,533 INFO L225 Difference]: With dead ends: 235448 [2023-12-21 09:41:59,534 INFO L226 Difference]: Without dead ends: 235273 [2023-12-21 09:41:59,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=698, Invalid=2842, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 09:41:59,623 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 4316 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 8307 mSolverCounterSat, 1478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4330 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 9785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1478 IncrementalHoareTripleChecker+Valid, 8307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:41:59,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4330 Valid, 2629 Invalid, 9785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1478 Valid, 8307 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-21 09:41:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235273 states. [2023-12-21 09:42:07,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235273 to 234796. [2023-12-21 09:42:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234796 states, 197742 states have (on average 1.6429387788127965) internal successors, (324878), 197648 states have internal predecessors, (324878), 36984 states have call successors, (36984), 60 states have call predecessors, (36984), 69 states have return successors, (44663), 37093 states have call predecessors, (44663), 36981 states have call successors, (44663) [2023-12-21 09:42:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234796 states to 234796 states and 406525 transitions. [2023-12-21 09:42:08,518 INFO L78 Accepts]: Start accepts. Automaton has 234796 states and 406525 transitions. Word has length 121 [2023-12-21 09:42:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:42:08,519 INFO L495 AbstractCegarLoop]: Abstraction has 234796 states and 406525 transitions. [2023-12-21 09:42:08,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 09:42:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 234796 states and 406525 transitions. [2023-12-21 09:42:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 09:42:08,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:42:08,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:42:08,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 09:42:08,569 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:42:08,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:42:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash -819549318, now seen corresponding path program 1 times [2023-12-21 09:42:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:42:08,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371956534] [2023-12-21 09:42:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:42:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:42:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:42:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:42:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:42:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:42:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:42:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:42:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:42:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:42:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:42:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:42:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:42:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:42:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:42:09,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:42:09,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371956534] [2023-12-21 09:42:09,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371956534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:42:09,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:42:09,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 09:42:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329618891] [2023-12-21 09:42:09,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:42:09,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 09:42:09,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:42:09,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 09:42:09,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:42:09,102 INFO L87 Difference]: Start difference. First operand 234796 states and 406525 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 09:42:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:42:24,483 INFO L93 Difference]: Finished difference Result 466809 states and 832281 transitions. [2023-12-21 09:42:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 09:42:24,484 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 122 [2023-12-21 09:42:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:42:27,067 INFO L225 Difference]: With dead ends: 466809 [2023-12-21 09:42:27,067 INFO L226 Difference]: Without dead ends: 466249 [2023-12-21 09:42:27,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=767, Invalid=3139, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 09:42:27,248 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 4298 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 8675 mSolverCounterSat, 1491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 10166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1491 IncrementalHoareTripleChecker+Valid, 8675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:42:27,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4298 Valid, 2150 Invalid, 10166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1491 Valid, 8675 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-21 09:42:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466249 states. [2023-12-21 09:42:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466249 to 465219. [2023-12-21 09:42:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465219 states, 391895 states have (on average 1.643935237755011) internal successors, (644250), 391534 states have internal predecessors, (644250), 73172 states have call successors, (73172), 130 states have call predecessors, (73172), 151 states have return successors, (97076), 73568 states have call predecessors, (97076), 73165 states have call successors, (97076) [2023-12-21 09:42:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465219 states to 465219 states and 814498 transitions. [2023-12-21 09:42:48,174 INFO L78 Accepts]: Start accepts. Automaton has 465219 states and 814498 transitions. Word has length 122 [2023-12-21 09:42:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:42:48,175 INFO L495 AbstractCegarLoop]: Abstraction has 465219 states and 814498 transitions. [2023-12-21 09:42:48,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 10 states have internal predecessors, (82), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-21 09:42:48,175 INFO L276 IsEmpty]: Start isEmpty. Operand 465219 states and 814498 transitions. [2023-12-21 09:42:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 09:42:48,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:42:48,269 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:42:48,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 09:42:48,270 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:42:48,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:42:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash -396847492, now seen corresponding path program 1 times [2023-12-21 09:42:48,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:42:48,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319325482] [2023-12-21 09:42:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:42:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:42:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:42:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:42:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:42:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:42:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:42:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:42:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:42:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:42:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:42:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:42:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:42:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:42:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:42:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:42:48,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:42:48,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319325482] [2023-12-21 09:42:48,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319325482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:42:48,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:42:48,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:42:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864039257] [2023-12-21 09:42:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:42:48,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:42:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:42:48,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:42:48,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:42:48,614 INFO L87 Difference]: Start difference. First operand 465219 states and 814498 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)