/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:46:57,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:46:57,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:46:57,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:46:57,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:46:57,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:46:57,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:46:57,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:46:57,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:46:57,663 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:46:57,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:46:57,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:46:57,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:46:57,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:46:57,665 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:46:57,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:46:57,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:46:57,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:46:57,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:46:57,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:46:57,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:46:57,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:46:57,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:46:57,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:46:57,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:46:57,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:46:57,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:46:57,670 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:46:57,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:46:57,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:46:57,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:46:57,907 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:46:57,907 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:46:57,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2023-12-15 22:46:58,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:46:59,212 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:46:59,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2023-12-15 22:46:59,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f54aa6eb/bedbc6725c7943e39567d7b507e69992/FLAG841c24397 [2023-12-15 22:46:59,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f54aa6eb/bedbc6725c7943e39567d7b507e69992 [2023-12-15 22:46:59,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:46:59,250 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:46:59,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:46:59,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:46:59,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:46:59,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94833de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59, skipping insertion in model container [2023-12-15 22:46:59,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:46:59,743 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_spec3_product25.cil.c[64426,64439] [2023-12-15 22:46:59,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:46:59,763 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:46:59,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [826] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [844] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1073] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2153] [2023-12-15 22:46:59,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2202] [2023-12-15 22:46:59,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2548] [2023-12-15 22:46:59,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] [2023-12-15 22:46:59,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2703] [2023-12-15 22:46:59,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2991] [2023-12-15 22:46:59,859 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_spec3_product25.cil.c[64426,64439] [2023-12-15 22:46:59,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:46:59,881 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:46:59,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59 WrapperNode [2023-12-15 22:46:59,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:46:59,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:46:59,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:46:59,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:46:59,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,941 INFO L138 Inliner]: procedures = 131, calls = 207, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1030 [2023-12-15 22:46:59,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:46:59,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:46:59,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:46:59,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:46:59,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,993 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:46:59,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:46:59,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:47:00,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:47:00,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:47:00,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:47:00,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (1/1) ... [2023-12-15 22:47:00,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:47:00,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:00,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:47:00,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:47:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-15 22:47:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-15 22:47:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-15 22:47:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-15 22:47:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-15 22:47:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-15 22:47:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:47:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:47:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:47:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:47:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:47:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:47:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:47:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:47:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:47:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:47:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:47:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:47:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:47:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:47:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:47:00,152 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:47:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:47:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-15 22:47:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-15 22:47:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:47:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:47:00,314 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:47:00,316 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:47:00,969 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:47:01,027 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:47:01,027 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:47:01,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:47:01 BoogieIcfgContainer [2023-12-15 22:47:01,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:47:01,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:47:01,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:47:01,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:47:01,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:46:59" (1/3) ... [2023-12-15 22:47:01,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d52347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:47:01, skipping insertion in model container [2023-12-15 22:47:01,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:59" (2/3) ... [2023-12-15 22:47:01,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d52347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:47:01, skipping insertion in model container [2023-12-15 22:47:01,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:47:01" (3/3) ... [2023-12-15 22:47:01,034 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product25.cil.c [2023-12-15 22:47:01,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:47:01,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:47:01,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:47:01,103 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;@1cdff856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:47:01,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:47:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 288 states have internal predecessors, (457), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-15 22:47:01,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 22:47:01,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:01,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:01,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:01,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash 254995704, now seen corresponding path program 1 times [2023-12-15 22:47:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:01,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693366162] [2023-12-15 22:47:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:47:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:47:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:47:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:47:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:47:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:47:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:47:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:47:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:47:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:47:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:47:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:47:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:47:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:47:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:01,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693366162] [2023-12-15 22:47:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693366162] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534184829] [2023-12-15 22:47:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:01,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:01,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:01,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:01,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:47:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:02,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:47:02,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-15 22:47:02,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:47:02,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534184829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:02,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:47:02,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:47:02,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402254089] [2023-12-15 22:47:02,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:02,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:47:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:47:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:47:02,253 INFO L87 Difference]: Start difference. First operand has 371 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 288 states have internal predecessors, (457), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:02,347 INFO L93 Difference]: Finished difference Result 557 states and 861 transitions. [2023-12-15 22:47:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:47:02,351 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2023-12-15 22:47:02,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:02,369 INFO L225 Difference]: With dead ends: 557 [2023-12-15 22:47:02,369 INFO L226 Difference]: Without dead ends: 367 [2023-12-15 22:47:02,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:47:02,376 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:02,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:47:02,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-15 22:47:02,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-12-15 22:47:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 281 states have (on average 1.601423487544484) internal successors, (450), 284 states have internal predecessors, (450), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 22:47:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 571 transitions. [2023-12-15 22:47:02,481 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 571 transitions. Word has length 123 [2023-12-15 22:47:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:02,482 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 571 transitions. [2023-12-15 22:47:02,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 571 transitions. [2023-12-15 22:47:02,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-15 22:47:02,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:02,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:02,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:47:02,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:47:02,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:02,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2120883837, now seen corresponding path program 1 times [2023-12-15 22:47:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422497967] [2023-12-15 22:47:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:02,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:47:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:47:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:47:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:47:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:47:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:47:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:47:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:47:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:47:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:47:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:47:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:47:03,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422497967] [2023-12-15 22:47:03,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422497967] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751524486] [2023-12-15 22:47:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:03,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:03,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:03,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:03,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:47:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:47:03,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:47:03,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:47:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751524486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:03,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:47:03,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:47:03,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369625750] [2023-12-15 22:47:03,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:03,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:47:03,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:47:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:47:03,334 INFO L87 Difference]: Start difference. First operand 367 states and 571 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:03,400 INFO L93 Difference]: Finished difference Result 552 states and 841 transitions. [2023-12-15 22:47:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:47:03,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-15 22:47:03,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:03,403 INFO L225 Difference]: With dead ends: 552 [2023-12-15 22:47:03,403 INFO L226 Difference]: Without dead ends: 369 [2023-12-15 22:47:03,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:47:03,405 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 0 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:03,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1107 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:47:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-12-15 22:47:03,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2023-12-15 22:47:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 283 states have (on average 1.5971731448763251) internal successors, (452), 286 states have internal predecessors, (452), 62 states have call successors, (62), 24 states have call predecessors, (62), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 22:47:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 573 transitions. [2023-12-15 22:47:03,441 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 573 transitions. Word has length 106 [2023-12-15 22:47:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:03,442 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 573 transitions. [2023-12-15 22:47:03,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:03,445 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 573 transitions. [2023-12-15 22:47:03,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 22:47:03,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:03,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:03,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:47:03,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:47:03,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:03,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1999952474, now seen corresponding path program 1 times [2023-12-15 22:47:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303855301] [2023-12-15 22:47:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:47:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:47:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:47:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:47:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:47:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:47:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:47:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:47:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:47:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:47:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:47:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:47:03,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:03,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303855301] [2023-12-15 22:47:03,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303855301] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:03,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671617606] [2023-12-15 22:47:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:03,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:03,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:03,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:03,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:47:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:47:04,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:47:04,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:47:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671617606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:04,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:47:04,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:47:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008724190] [2023-12-15 22:47:04,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:04,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:47:04,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:47:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:47:04,111 INFO L87 Difference]: Start difference. First operand 369 states and 573 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:04,162 INFO L93 Difference]: Finished difference Result 786 states and 1238 transitions. [2023-12-15 22:47:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:47:04,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-12-15 22:47:04,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:04,165 INFO L225 Difference]: With dead ends: 786 [2023-12-15 22:47:04,165 INFO L226 Difference]: Without dead ends: 439 [2023-12-15 22:47:04,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:47:04,167 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 129 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:04,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1078 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:47:04,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-15 22:47:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2023-12-15 22:47:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 334 states have (on average 1.6137724550898203) internal successors, (539), 337 states have internal predecessors, (539), 76 states have call successors, (76), 24 states have call predecessors, (76), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-15 22:47:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 688 transitions. [2023-12-15 22:47:04,196 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 688 transitions. Word has length 111 [2023-12-15 22:47:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:04,196 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 688 transitions. [2023-12-15 22:47:04,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:04,197 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 688 transitions. [2023-12-15 22:47:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-15 22:47:04,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:04,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:04,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:47:04,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:04,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:04,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1049758509, now seen corresponding path program 1 times [2023-12-15 22:47:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:04,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962983112] [2023-12-15 22:47:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:47:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:47:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:47:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:47:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:47:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:47:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:47:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:47:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:47:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:47:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:47:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:47:04,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962983112] [2023-12-15 22:47:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962983112] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340638797] [2023-12-15 22:47:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:04,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:04,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:04,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:04,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:47:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:04,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:47:04,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:47:04,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:47:04,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340638797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:04,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:47:04,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:47:04,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293467243] [2023-12-15 22:47:04,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:04,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:47:04,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:04,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:47:04,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:47:04,941 INFO L87 Difference]: Start difference. First operand 434 states and 688 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:05,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:05,028 INFO L93 Difference]: Finished difference Result 863 states and 1370 transitions. [2023-12-15 22:47:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:47:05,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-15 22:47:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:05,031 INFO L225 Difference]: With dead ends: 863 [2023-12-15 22:47:05,031 INFO L226 Difference]: Without dead ends: 436 [2023-12-15 22:47:05,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:05,034 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 8 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:05,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2169 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:47:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-15 22:47:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2023-12-15 22:47:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 335 states have (on average 1.6119402985074627) internal successors, (540), 339 states have internal predecessors, (540), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2023-12-15 22:47:05,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 691 transitions. [2023-12-15 22:47:05,057 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 691 transitions. Word has length 112 [2023-12-15 22:47:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:05,058 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 691 transitions. [2023-12-15 22:47:05,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:05,058 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 691 transitions. [2023-12-15 22:47:05,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-15 22:47:05,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:05,060 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:05,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:47:05,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:05,266 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:05,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:05,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1135685333, now seen corresponding path program 1 times [2023-12-15 22:47:05,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:05,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063431004] [2023-12-15 22:47:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:05,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:47:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:47:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:47:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:47:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:47:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:47:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:47:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:47:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:47:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:47:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:47:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:47:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:47:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 22:47:05,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:05,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063431004] [2023-12-15 22:47:05,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063431004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:05,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607621690] [2023-12-15 22:47:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:05,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:05,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:05,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:05,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:47:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:05,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:47:05,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-15 22:47:05,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:47:05,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607621690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:05,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:47:05,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:47:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960566403] [2023-12-15 22:47:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:05,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:47:05,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:05,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:47:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:47:05,709 INFO L87 Difference]: Start difference. First operand 436 states and 691 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 22:47:05,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:05,792 INFO L93 Difference]: Finished difference Result 865 states and 1375 transitions. [2023-12-15 22:47:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:47:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 131 [2023-12-15 22:47:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:05,795 INFO L225 Difference]: With dead ends: 865 [2023-12-15 22:47:05,795 INFO L226 Difference]: Without dead ends: 438 [2023-12-15 22:47:05,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:47:05,796 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 8 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:05,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2155 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:47:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-15 22:47:05,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-12-15 22:47:05,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 336 states have (on average 1.6101190476190477) internal successors, (541), 341 states have internal predecessors, (541), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-15 22:47:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 697 transitions. [2023-12-15 22:47:05,807 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 697 transitions. Word has length 131 [2023-12-15 22:47:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:05,807 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 697 transitions. [2023-12-15 22:47:05,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 22:47:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 697 transitions. [2023-12-15 22:47:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-15 22:47:05,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:05,809 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:05,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:47:06,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:06,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:06,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:06,016 INFO L85 PathProgramCache]: Analyzing trace with hash -619740457, now seen corresponding path program 1 times [2023-12-15 22:47:06,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:06,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005781314] [2023-12-15 22:47:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:06,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:47:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:47:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:47:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:47:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:47:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:47:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:47:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:47:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:47:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:47:06,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:06,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005781314] [2023-12-15 22:47:06,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005781314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:06,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:06,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:47:06,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007865828] [2023-12-15 22:47:06,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:06,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:47:06,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:06,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:47:06,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:47:06,190 INFO L87 Difference]: Start difference. First operand 438 states and 697 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:08,011 INFO L93 Difference]: Finished difference Result 1001 states and 1623 transitions. [2023-12-15 22:47:08,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:47:08,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2023-12-15 22:47:08,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:08,017 INFO L225 Difference]: With dead ends: 1001 [2023-12-15 22:47:08,018 INFO L226 Difference]: Without dead ends: 582 [2023-12-15 22:47:08,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:47:08,020 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1248 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:08,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1193 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 22:47:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-15 22:47:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 438. [2023-12-15 22:47:08,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 336 states have (on average 1.6101190476190477) internal successors, (541), 341 states have internal predecessors, (541), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-15 22:47:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 696 transitions. [2023-12-15 22:47:08,056 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 696 transitions. Word has length 114 [2023-12-15 22:47:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:08,057 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 696 transitions. [2023-12-15 22:47:08,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 696 transitions. [2023-12-15 22:47:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 22:47:08,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:08,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:08,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:47:08,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:08,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1010657811, now seen corresponding path program 2 times [2023-12-15 22:47:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:08,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017933331] [2023-12-15 22:47:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:08,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:47:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:47:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:47:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:47:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:47:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:47:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:47:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:47:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:47:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:47:08,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:08,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017933331] [2023-12-15 22:47:08,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017933331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:08,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:08,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:47:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554455514] [2023-12-15 22:47:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:08,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:47:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:08,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:47:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:47:08,215 INFO L87 Difference]: Start difference. First operand 438 states and 696 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:09,897 INFO L93 Difference]: Finished difference Result 1003 states and 1626 transitions. [2023-12-15 22:47:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:47:09,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2023-12-15 22:47:09,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:09,901 INFO L225 Difference]: With dead ends: 1003 [2023-12-15 22:47:09,901 INFO L226 Difference]: Without dead ends: 584 [2023-12-15 22:47:09,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:47:09,903 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1245 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:09,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1193 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 22:47:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-15 22:47:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 440. [2023-12-15 22:47:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 337 states have (on average 1.6083086053412463) internal successors, (542), 343 states have internal predecessors, (542), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 72 states have call predecessors, (81), 73 states have call successors, (81) [2023-12-15 22:47:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 699 transitions. [2023-12-15 22:47:09,925 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 699 transitions. Word has length 115 [2023-12-15 22:47:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:09,925 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 699 transitions. [2023-12-15 22:47:09,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:47:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 699 transitions. [2023-12-15 22:47:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 22:47:09,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:09,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:09,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:47:09,928 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:09,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1758020146, now seen corresponding path program 1 times [2023-12-15 22:47:09,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:09,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642589556] [2023-12-15 22:47:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:09,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:47:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:47:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:47:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:47:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:47:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:47:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:47:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:47:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:47:10,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:10,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642589556] [2023-12-15 22:47:10,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642589556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:10,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:10,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:47:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758281984] [2023-12-15 22:47:10,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:10,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:47:10,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:10,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:47:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:47:10,142 INFO L87 Difference]: Start difference. First operand 440 states and 699 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:47:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:12,422 INFO L93 Difference]: Finished difference Result 1001 states and 1621 transitions. [2023-12-15 22:47:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:47:12,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2023-12-15 22:47:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:12,425 INFO L225 Difference]: With dead ends: 1001 [2023-12-15 22:47:12,425 INFO L226 Difference]: Without dead ends: 584 [2023-12-15 22:47:12,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:47:12,427 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1254 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4661 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 5105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 4661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:12,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1653 Invalid, 5105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 4661 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 22:47:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-15 22:47:12,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 440. [2023-12-15 22:47:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 337 states have (on average 1.6083086053412463) internal successors, (542), 343 states have internal predecessors, (542), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-15 22:47:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 698 transitions. [2023-12-15 22:47:12,446 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 698 transitions. Word has length 116 [2023-12-15 22:47:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:12,446 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 698 transitions. [2023-12-15 22:47:12,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:47:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 698 transitions. [2023-12-15 22:47:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-15 22:47:12,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:12,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:12,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:47:12,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:12,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash 787369694, now seen corresponding path program 1 times [2023-12-15 22:47:12,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:12,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600365155] [2023-12-15 22:47:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:12,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:47:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:47:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:47:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:47:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:47:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:47:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:47:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:47:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:47:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:47:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:47:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 22:47:12,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:12,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600365155] [2023-12-15 22:47:12,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600365155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:12,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:12,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:47:12,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518449894] [2023-12-15 22:47:12,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:12,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:47:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:47:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:47:12,629 INFO L87 Difference]: Start difference. First operand 440 states and 698 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-15 22:47:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:15,053 INFO L93 Difference]: Finished difference Result 1003 states and 1627 transitions. [2023-12-15 22:47:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:47:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 135 [2023-12-15 22:47:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:15,056 INFO L225 Difference]: With dead ends: 1003 [2023-12-15 22:47:15,056 INFO L226 Difference]: Without dead ends: 586 [2023-12-15 22:47:15,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:47:15,058 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1251 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4686 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 5135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 4686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:15,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1652 Invalid, 5135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 4686 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 22:47:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-15 22:47:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 442. [2023-12-15 22:47:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 338 states have (on average 1.606508875739645) internal successors, (543), 345 states have internal predecessors, (543), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (85), 72 states have call predecessors, (85), 73 states have call successors, (85) [2023-12-15 22:47:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 704 transitions. [2023-12-15 22:47:15,076 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 704 transitions. Word has length 135 [2023-12-15 22:47:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:15,077 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 704 transitions. [2023-12-15 22:47:15,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-15 22:47:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 704 transitions. [2023-12-15 22:47:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-15 22:47:15,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:15,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:15,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:47:15,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:15,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash -382099701, now seen corresponding path program 1 times [2023-12-15 22:47:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678897484] [2023-12-15 22:47:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:47:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:47:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:47:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:47:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:47:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:47:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:47:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:47:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:47:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:47:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:47:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:15,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:15,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678897484] [2023-12-15 22:47:15,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678897484] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:47:15,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643667068] [2023-12-15 22:47:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:15,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:15,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:47:15,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:47:15,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:47:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:15,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:47:15,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:47:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:15,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:47:15,551 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:15,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643667068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:47:15,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:47:15,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-15 22:47:15,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433504889] [2023-12-15 22:47:15,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:47:15,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:47:15,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:15,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:47:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:47:15,554 INFO L87 Difference]: Start difference. First operand 442 states and 704 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-15 22:47:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:17,353 INFO L93 Difference]: Finished difference Result 1189 states and 2004 transitions. [2023-12-15 22:47:17,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:47:17,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 136 [2023-12-15 22:47:17,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:17,357 INFO L225 Difference]: With dead ends: 1189 [2023-12-15 22:47:17,358 INFO L226 Difference]: Without dead ends: 1006 [2023-12-15 22:47:17,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:47:17,359 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1732 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:17,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 1574 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 22:47:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2023-12-15 22:47:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 847. [2023-12-15 22:47:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 664 states have (on average 1.661144578313253) internal successors, (1103), 671 states have internal predecessors, (1103), 155 states have call successors, (155), 24 states have call predecessors, (155), 27 states have return successors, (174), 151 states have call predecessors, (174), 152 states have call successors, (174) [2023-12-15 22:47:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1432 transitions. [2023-12-15 22:47:17,389 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1432 transitions. Word has length 136 [2023-12-15 22:47:17,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:17,390 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1432 transitions. [2023-12-15 22:47:17,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-15 22:47:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1432 transitions. [2023-12-15 22:47:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 22:47:17,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:17,394 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, 1, 1] [2023-12-15 22:47:17,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 22:47:17,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:47:17,601 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:17,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:17,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1333165520, now seen corresponding path program 1 times [2023-12-15 22:47:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323772226] [2023-12-15 22:47:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:47:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:47:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:47:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:47:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:47:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:47:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:47:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:47:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:17,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:17,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:17,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323772226] [2023-12-15 22:47:17,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323772226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:17,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:17,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844457797] [2023-12-15 22:47:17,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:17,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:17,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:17,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:17,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:17,675 INFO L87 Difference]: Start difference. First operand 847 states and 1432 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:18,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:18,846 INFO L93 Difference]: Finished difference Result 2185 states and 3783 transitions. [2023-12-15 22:47:18,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:18,846 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-12-15 22:47:18,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:18,852 INFO L225 Difference]: With dead ends: 2185 [2023-12-15 22:47:18,852 INFO L226 Difference]: Without dead ends: 1398 [2023-12-15 22:47:18,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:18,854 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1368 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:18,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 905 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:47:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-12-15 22:47:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1249. [2023-12-15 22:47:18,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 987 states have (on average 1.6717325227963526) internal successors, (1650), 994 states have internal predecessors, (1650), 234 states have call successors, (234), 24 states have call predecessors, (234), 27 states have return successors, (263), 230 states have call predecessors, (263), 231 states have call successors, (263) [2023-12-15 22:47:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2147 transitions. [2023-12-15 22:47:18,893 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 2147 transitions. Word has length 124 [2023-12-15 22:47:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:18,893 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 2147 transitions. [2023-12-15 22:47:18,893 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 2147 transitions. [2023-12-15 22:47:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 22:47:18,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:18,898 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, 1, 1, 1] [2023-12-15 22:47:18,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:47:18,898 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:18,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:18,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2032222432, now seen corresponding path program 1 times [2023-12-15 22:47:18,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:18,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740928347] [2023-12-15 22:47:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:18,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:47:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:47:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:47:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:47:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:47:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:47:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:47:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:47:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:18,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740928347] [2023-12-15 22:47:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740928347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:18,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850799288] [2023-12-15 22:47:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:18,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:18,964 INFO L87 Difference]: Start difference. First operand 1249 states and 2147 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:20,149 INFO L93 Difference]: Finished difference Result 3168 states and 5530 transitions. [2023-12-15 22:47:20,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:20,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-12-15 22:47:20,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:20,158 INFO L225 Difference]: With dead ends: 3168 [2023-12-15 22:47:20,158 INFO L226 Difference]: Without dead ends: 2029 [2023-12-15 22:47:20,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:20,161 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1360 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:20,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 886 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:47:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-12-15 22:47:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1880. [2023-12-15 22:47:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1499 states have (on average 1.6784523015343562) internal successors, (2516), 1506 states have internal predecessors, (2516), 353 states have call successors, (353), 24 states have call predecessors, (353), 27 states have return successors, (382), 349 states have call predecessors, (382), 350 states have call successors, (382) [2023-12-15 22:47:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 3251 transitions. [2023-12-15 22:47:20,220 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 3251 transitions. Word has length 125 [2023-12-15 22:47:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:20,221 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 3251 transitions. [2023-12-15 22:47:20,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 3251 transitions. [2023-12-15 22:47:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 22:47:20,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:20,229 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, 1, 1, 1, 1] [2023-12-15 22:47:20,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:47:20,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:20,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1988778286, now seen corresponding path program 1 times [2023-12-15 22:47:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:20,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720994486] [2023-12-15 22:47:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:20,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:47:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:47:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:47:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:47:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:47:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:47:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:47:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:47:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:20,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:20,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720994486] [2023-12-15 22:47:20,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720994486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:20,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:20,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:20,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373299628] [2023-12-15 22:47:20,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:20,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:20,305 INFO L87 Difference]: Start difference. First operand 1880 states and 3251 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:21,485 INFO L93 Difference]: Finished difference Result 4648 states and 8182 transitions. [2023-12-15 22:47:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:21,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-15 22:47:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:21,497 INFO L225 Difference]: With dead ends: 4648 [2023-12-15 22:47:21,497 INFO L226 Difference]: Without dead ends: 2998 [2023-12-15 22:47:21,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:21,503 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1361 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:21,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 879 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 22:47:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2023-12-15 22:47:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2849. [2023-12-15 22:47:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2306 states have (on average 1.6843018213356462) internal successors, (3884), 2313 states have internal predecessors, (3884), 515 states have call successors, (515), 24 states have call predecessors, (515), 27 states have return successors, (560), 511 states have call predecessors, (560), 512 states have call successors, (560) [2023-12-15 22:47:21,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 4959 transitions. [2023-12-15 22:47:21,629 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 4959 transitions. Word has length 126 [2023-12-15 22:47:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:21,629 INFO L495 AbstractCegarLoop]: Abstraction has 2849 states and 4959 transitions. [2023-12-15 22:47:21,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:21,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 4959 transitions. [2023-12-15 22:47:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 22:47:21,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:21,640 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:21,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:47:21,640 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:21,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:21,640 INFO L85 PathProgramCache]: Analyzing trace with hash 629922397, now seen corresponding path program 1 times [2023-12-15 22:47:21,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:21,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371345259] [2023-12-15 22:47:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:21,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:47:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:47:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:47:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:47:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:47:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:47:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:47:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:47:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:47:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:47:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:47:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:21,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:21,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371345259] [2023-12-15 22:47:21,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371345259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:21,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:21,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:21,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67334183] [2023-12-15 22:47:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:21,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:21,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:21,715 INFO L87 Difference]: Start difference. First operand 2849 states and 4959 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:23,179 INFO L93 Difference]: Finished difference Result 6988 states and 12387 transitions. [2023-12-15 22:47:23,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-15 22:47:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:23,197 INFO L225 Difference]: With dead ends: 6988 [2023-12-15 22:47:23,197 INFO L226 Difference]: Without dead ends: 4566 [2023-12-15 22:47:23,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:23,205 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1357 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:23,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 878 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:47:23,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2023-12-15 22:47:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4417. [2023-12-15 22:47:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 3629 states have (on average 1.6886194543951503) internal successors, (6128), 3636 states have internal predecessors, (6128), 760 states have call successors, (760), 24 states have call predecessors, (760), 27 states have return successors, (831), 756 states have call predecessors, (831), 757 states have call successors, (831) [2023-12-15 22:47:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 7719 transitions. [2023-12-15 22:47:23,337 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 7719 transitions. Word has length 145 [2023-12-15 22:47:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:23,338 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 7719 transitions. [2023-12-15 22:47:23,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 7719 transitions. [2023-12-15 22:47:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 22:47:23,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:23,351 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, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:23,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:47:23,351 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:23,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1797316430, now seen corresponding path program 1 times [2023-12-15 22:47:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508481546] [2023-12-15 22:47:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:47:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:47:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:47:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:47:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:47:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:47:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:47:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:47:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:23,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:23,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508481546] [2023-12-15 22:47:23,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508481546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:23,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:23,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:23,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213696039] [2023-12-15 22:47:23,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:23,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:23,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:23,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:23,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:23,424 INFO L87 Difference]: Start difference. First operand 4417 states and 7719 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:24,822 INFO L93 Difference]: Finished difference Result 10941 states and 19454 transitions. [2023-12-15 22:47:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-15 22:47:24,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:24,875 INFO L225 Difference]: With dead ends: 10941 [2023-12-15 22:47:24,875 INFO L226 Difference]: Without dead ends: 7238 [2023-12-15 22:47:24,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:24,883 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1360 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:24,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 914 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:47:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2023-12-15 22:47:25,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 7089. [2023-12-15 22:47:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 5808 states have (on average 1.6825068870523416) internal successors, (9772), 5815 states have internal predecessors, (9772), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 27 states have return successors, (1368), 1249 states have call predecessors, (1368), 1250 states have call successors, (1368) [2023-12-15 22:47:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 12393 transitions. [2023-12-15 22:47:25,098 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 12393 transitions. Word has length 128 [2023-12-15 22:47:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:25,099 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 12393 transitions. [2023-12-15 22:47:25,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 12393 transitions. [2023-12-15 22:47:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-15 22:47:25,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:25,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:25,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:47:25,120 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:25,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -902914087, now seen corresponding path program 1 times [2023-12-15 22:47:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43558698] [2023-12-15 22:47:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:47:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:47:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:47:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:47:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:47:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:47:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:47:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:47:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:47:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 22:47:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-15 22:47:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:25,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:25,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43558698] [2023-12-15 22:47:25,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43558698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:25,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:25,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783118858] [2023-12-15 22:47:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:25,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:25,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:25,231 INFO L87 Difference]: Start difference. First operand 7089 states and 12393 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:26,874 INFO L93 Difference]: Finished difference Result 18076 states and 32138 transitions. [2023-12-15 22:47:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-15 22:47:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:26,909 INFO L225 Difference]: With dead ends: 18076 [2023-12-15 22:47:26,909 INFO L226 Difference]: Without dead ends: 12067 [2023-12-15 22:47:26,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:26,926 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1358 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:26,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 885 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:47:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2023-12-15 22:47:27,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 11918. [2023-12-15 22:47:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11918 states, 9815 states have (on average 1.682322975038207) internal successors, (16512), 9822 states have internal predecessors, (16512), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 27 states have return successors, (2268), 2071 states have call predecessors, (2268), 2072 states have call successors, (2268) [2023-12-15 22:47:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11918 states to 11918 states and 20855 transitions. [2023-12-15 22:47:27,276 INFO L78 Accepts]: Start accepts. Automaton has 11918 states and 20855 transitions. Word has length 147 [2023-12-15 22:47:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:27,276 INFO L495 AbstractCegarLoop]: Abstraction has 11918 states and 20855 transitions. [2023-12-15 22:47:27,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 11918 states and 20855 transitions. [2023-12-15 22:47:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-15 22:47:27,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:27,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:27,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:47:27,304 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:27,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1430514050, now seen corresponding path program 1 times [2023-12-15 22:47:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:27,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637140694] [2023-12-15 22:47:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:27,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:47:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:47:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:47:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:47:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:47:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:47:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:47:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:47:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:47:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 22:47:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 22:47:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:27,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:27,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637140694] [2023-12-15 22:47:27,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637140694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:27,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:27,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:27,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668211465] [2023-12-15 22:47:27,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:27,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:27,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:27,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:27,382 INFO L87 Difference]: Start difference. First operand 11918 states and 20855 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:29,093 INFO L93 Difference]: Finished difference Result 28622 states and 50691 transitions. [2023-12-15 22:47:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:29,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-15 22:47:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:29,144 INFO L225 Difference]: With dead ends: 28622 [2023-12-15 22:47:29,144 INFO L226 Difference]: Without dead ends: 18739 [2023-12-15 22:47:29,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:29,163 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1353 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:29,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 858 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:47:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18739 states. [2023-12-15 22:47:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18739 to 18590. [2023-12-15 22:47:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18590 states, 15284 states have (on average 1.6601020675215912) internal successors, (25373), 15291 states have internal predecessors, (25373), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 27 states have return successors, (3615), 3274 states have call predecessors, (3615), 3275 states have call successors, (3615) [2023-12-15 22:47:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18590 states to 18590 states and 32266 transitions. [2023-12-15 22:47:29,739 INFO L78 Accepts]: Start accepts. Automaton has 18590 states and 32266 transitions. Word has length 148 [2023-12-15 22:47:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:29,739 INFO L495 AbstractCegarLoop]: Abstraction has 18590 states and 32266 transitions. [2023-12-15 22:47:29,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 18590 states and 32266 transitions. [2023-12-15 22:47:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 22:47:29,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:29,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:29,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:47:29,763 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:29,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:29,763 INFO L85 PathProgramCache]: Analyzing trace with hash -866755144, now seen corresponding path program 1 times [2023-12-15 22:47:29,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646779665] [2023-12-15 22:47:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:29,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:47:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:47:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:47:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:47:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:47:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:47:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:47:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:47:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:47:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:47:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:47:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:29,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646779665] [2023-12-15 22:47:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646779665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:29,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:29,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719345174] [2023-12-15 22:47:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:29,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:29,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:29,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:29,841 INFO L87 Difference]: Start difference. First operand 18590 states and 32266 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:31,776 INFO L93 Difference]: Finished difference Result 49255 states and 87012 transitions. [2023-12-15 22:47:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:31,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-15 22:47:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:31,874 INFO L225 Difference]: With dead ends: 49255 [2023-12-15 22:47:31,874 INFO L226 Difference]: Without dead ends: 33320 [2023-12-15 22:47:31,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:31,905 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1348 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:31,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 880 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:47:31,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33320 states. [2023-12-15 22:47:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33320 to 33171. [2023-12-15 22:47:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33171 states, 27415 states have (on average 1.657340871785519) internal successors, (45436), 27422 states have internal predecessors, (45436), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 27 states have return successors, (6339), 5724 states have call predecessors, (6339), 5725 states have call successors, (6339) [2023-12-15 22:47:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33171 states to 33171 states and 57503 transitions. [2023-12-15 22:47:32,886 INFO L78 Accepts]: Start accepts. Automaton has 33171 states and 57503 transitions. Word has length 149 [2023-12-15 22:47:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:32,886 INFO L495 AbstractCegarLoop]: Abstraction has 33171 states and 57503 transitions. [2023-12-15 22:47:32,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 33171 states and 57503 transitions. [2023-12-15 22:47:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 22:47:32,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:32,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:32,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:47:32,917 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:32,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1860725992, now seen corresponding path program 1 times [2023-12-15 22:47:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511577473] [2023-12-15 22:47:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:32,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:47:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:47:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:47:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:47:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:47:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:47:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:47:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:47:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:47:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-15 22:47:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-15 22:47:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:33,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:33,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511577473] [2023-12-15 22:47:33,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511577473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:33,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:33,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:33,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924623456] [2023-12-15 22:47:33,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:33,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:33,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:33,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:33,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:33,192 INFO L87 Difference]: Start difference. First operand 33171 states and 57503 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:35,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:35,672 INFO L93 Difference]: Finished difference Result 90557 states and 159236 transitions. [2023-12-15 22:47:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:35,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-15 22:47:35,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:35,977 INFO L225 Difference]: With dead ends: 90557 [2023-12-15 22:47:35,977 INFO L226 Difference]: Without dead ends: 60932 [2023-12-15 22:47:36,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:36,033 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1349 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:36,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 886 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:47:36,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60932 states. [2023-12-15 22:47:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60932 to 60783. [2023-12-15 22:47:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60783 states, 50514 states have (on average 1.6536405748901295) internal successors, (83532), 50521 states have internal predecessors, (83532), 10241 states have call successors, (10241), 24 states have call predecessors, (10241), 27 states have return successors, (11384), 10237 states have call predecessors, (11384), 10238 states have call successors, (11384) [2023-12-15 22:47:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60783 states to 60783 states and 105157 transitions. [2023-12-15 22:47:38,356 INFO L78 Accepts]: Start accepts. Automaton has 60783 states and 105157 transitions. Word has length 150 [2023-12-15 22:47:38,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:38,357 INFO L495 AbstractCegarLoop]: Abstraction has 60783 states and 105157 transitions. [2023-12-15 22:47:38,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 60783 states and 105157 transitions. [2023-12-15 22:47:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-15 22:47:38,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:38,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:38,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:47:38,401 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:38,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash 423398298, now seen corresponding path program 1 times [2023-12-15 22:47:38,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:38,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456381121] [2023-12-15 22:47:38,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:38,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:47:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:47:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:47:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:47:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:47:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:47:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:47:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:47:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:47:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:38,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456381121] [2023-12-15 22:47:38,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456381121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:38,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:38,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:47:38,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623909197] [2023-12-15 22:47:38,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:38,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:47:38,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:38,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:47:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:47:38,477 INFO L87 Difference]: Start difference. First operand 60783 states and 105157 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:41,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:41,707 INFO L93 Difference]: Finished difference Result 113909 states and 200846 transitions. [2023-12-15 22:47:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:47:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2023-12-15 22:47:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:42,189 INFO L225 Difference]: With dead ends: 113909 [2023-12-15 22:47:42,189 INFO L226 Difference]: Without dead ends: 113726 [2023-12-15 22:47:42,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:47:42,219 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1345 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:42,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 879 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:47:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113726 states. [2023-12-15 22:47:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113726 to 113577. [2023-12-15 22:47:45,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113577 states, 94940 states have (on average 1.6488729724036233) internal successors, (156544), 94947 states have internal predecessors, (156544), 18609 states have call successors, (18609), 24 states have call predecessors, (18609), 27 states have return successors, (20798), 18605 states have call predecessors, (20798), 18606 states have call successors, (20798) [2023-12-15 22:47:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113577 states to 113577 states and 195951 transitions. [2023-12-15 22:47:46,221 INFO L78 Accepts]: Start accepts. Automaton has 113577 states and 195951 transitions. Word has length 133 [2023-12-15 22:47:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:47:46,221 INFO L495 AbstractCegarLoop]: Abstraction has 113577 states and 195951 transitions. [2023-12-15 22:47:46,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:47:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 113577 states and 195951 transitions. [2023-12-15 22:47:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-15 22:47:46,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:47:46,270 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:47:46,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:47:46,270 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:47:46,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:47:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1877426825, now seen corresponding path program 1 times [2023-12-15 22:47:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:47:46,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204288295] [2023-12-15 22:47:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:47:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:47:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:47:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:47:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:47:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:47:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:47:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:47:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:47:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:47:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:47:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:47:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:47:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:47:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:47:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:47:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:47:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 22:47:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-15 22:47:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:47:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:47:46,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:47:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204288295] [2023-12-15 22:47:46,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204288295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:47:46,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:47:46,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:47:46,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417095576] [2023-12-15 22:47:46,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:47:46,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:47:46,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:47:46,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:47:46,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:47:46,395 INFO L87 Difference]: Start difference. First operand 113577 states and 195951 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 22:47:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:47:53,356 INFO L93 Difference]: Finished difference Result 218795 states and 385280 transitions. [2023-12-15 22:47:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-15 22:47:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-15 22:47:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:47:54,301 INFO L225 Difference]: With dead ends: 218795 [2023-12-15 22:47:54,301 INFO L226 Difference]: Without dead ends: 218619 [2023-12-15 22:47:54,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2023-12-15 22:47:54,575 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2808 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 4518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 959 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:47:54,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 1566 Invalid, 4518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [959 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 22:47:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218619 states. Received shutdown request... [2023-12-15 22:47:57,925 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:47:59,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 22:48:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218619 to 218315. [2023-12-15 22:48:00,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218315 states, 182546 states have (on average 1.6520274341809735) internal successors, (301571), 182499 states have internal predecessors, (301571), 35718 states have call successors, (35718), 46 states have call predecessors, (35718), 50 states have return successors, (38999), 35769 states have call predecessors, (38999), 35714 states have call successors, (38999) [2023-12-15 22:48:00,741 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:48:00,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:48:00,742 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 22:48:00,745 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:48:00,747 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:48:00,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:48:00 BoogieIcfgContainer [2023-12-15 22:48:00,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:48:00,748 INFO L158 Benchmark]: Toolchain (without parser) took 61498.17ms. Allocated memory was 212.9MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 158.7MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-15 22:48:00,748 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 177.2MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:48:00,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.98ms. Allocated memory is still 212.9MB. Free memory was 158.4MB in the beginning and 171.9MB in the end (delta: -13.5MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2023-12-15 22:48:00,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.08ms. Allocated memory is still 212.9MB. Free memory was 171.9MB in the beginning and 165.6MB in the end (delta: 6.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:48:00,749 INFO L158 Benchmark]: Boogie Preprocessor took 94.76ms. Allocated memory is still 212.9MB. Free memory was 165.6MB in the beginning and 158.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 22:48:00,749 INFO L158 Benchmark]: RCFGBuilder took 989.61ms. Allocated memory is still 212.9MB. Free memory was 157.7MB in the beginning and 150.3MB in the end (delta: 7.5MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2023-12-15 22:48:00,749 INFO L158 Benchmark]: TraceAbstraction took 59718.95ms. Allocated memory was 212.9MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 149.2MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-15 22:48:00,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 177.2MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 630.98ms. Allocated memory is still 212.9MB. Free memory was 158.4MB in the beginning and 171.9MB in the end (delta: -13.5MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.08ms. Allocated memory is still 212.9MB. Free memory was 171.9MB in the beginning and 165.6MB in the end (delta: 6.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.76ms. Allocated memory is still 212.9MB. Free memory was 165.6MB in the beginning and 158.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 989.61ms. Allocated memory is still 212.9MB. Free memory was 157.7MB in the beginning and 150.3MB in the end (delta: 7.5MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. * TraceAbstraction took 59718.95ms. Allocated memory was 212.9MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 149.2MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] - GenericResultAtLocation [Line: 460]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [826] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [844] - GenericResultAtLocation [Line: 1073]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1073] - GenericResultAtLocation [Line: 2153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2153] - GenericResultAtLocation [Line: 2202]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2202] - GenericResultAtLocation [Line: 2548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2548] - GenericResultAtLocation [Line: 2607]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2607] - GenericResultAtLocation [Line: 2703]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2703] - GenericResultAtLocation [Line: 2991]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2991] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2996]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2996). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 371 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.7s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 37.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23521 SdHoareTripleChecker+Valid, 23.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23242 mSDsluCounter, 24747 SdHoareTripleChecker+Invalid, 19.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18805 mSDsCounter, 8454 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37062 IncrementalHoareTripleChecker+Invalid, 45516 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8454 mSolverCounterUnsat, 5942 mSDtfsCounter, 37062 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1785 GetRequests, 1508 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113577occurred in iteration=20, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 2230 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 3445 NumberOfCodeBlocks, 3445 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3553 ConstructedInterpolants, 0 QuantifiedInterpolants, 5713 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6750 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 930/954 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown