/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_spec0_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 22:58:22,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 22:58:22,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 22:58:22,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 22:58:22,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 22:58:22,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 22:58:22,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 22:58:22,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 22:58:22,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 22:58:22,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 22:58:22,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 22:58:22,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 22:58:22,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 22:58:22,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 22:58:22,341 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 22:58:22,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 22:58:22,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 22:58:22,341 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 22:58:22,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 22:58:22,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 22:58:22,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 22:58:22,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 22:58:22,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 22:58:22,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 22:58:22,343 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 22:58:22,343 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 22:58:22,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 22:58:22,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 22:58:22,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 22:58:22,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 22:58:22,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 22:58:22,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 22:58:22,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:58:22,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 22:58:22,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 22:58:22,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 22:58:22,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 22:58:22,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 22:58:22,347 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 22:58:22,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 22:58:22,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 22:58:22,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 22:58:22,631 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 22:58:22,632 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 22:58:22,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product36.cil.c [2023-12-19 22:58:23,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 22:58:24,123 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 22:58:24,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product36.cil.c [2023-12-19 22:58:24,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83bd5149/65ca912c72b14caba834f5a4a4f80505/FLAGd587300ca [2023-12-19 22:58:24,161 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83bd5149/65ca912c72b14caba834f5a4a4f80505 [2023-12-19 22:58:24,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 22:58:24,164 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 22:58:24,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 22:58:24,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 22:58:24,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 22:58:24,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174ff825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24, skipping insertion in model container [2023-12-19 22:58:24,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 22:58:24,503 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_spec0_product36.cil.c[12529,12542] [2023-12-19 22:58:24,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:58:24,700 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 22:58:24,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-19 22:58:24,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [97] [2023-12-19 22:58:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [463] [2023-12-19 22:58:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [481] [2023-12-19 22:58:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [490] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1570] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1641] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1881] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2288] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2307] [2023-12-19 22:58:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2509] [2023-12-19 22:58:24,732 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_spec0_product36.cil.c[12529,12542] [2023-12-19 22:58:24,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:58:24,802 INFO L206 MainTranslator]: Completed translation [2023-12-19 22:58:24,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24 WrapperNode [2023-12-19 22:58:24,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 22:58:24,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 22:58:24,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 22:58:24,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 22:58:24,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,872 INFO L138 Inliner]: procedures = 113, calls = 136, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 681 [2023-12-19 22:58:24,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 22:58:24,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 22:58:24,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 22:58:24,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 22:58:24,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,910 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2023-12-19 22:58:24,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 22:58:24,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 22:58:24,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 22:58:24,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 22:58:24,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (1/1) ... [2023-12-19 22:58:24,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:58:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:24,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 22:58:25,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 22:58:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-19 22:58:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-19 22:58:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-19 22:58:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-19 22:58:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-19 22:58:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-19 22:58:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-19 22:58:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-19 22:58:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-19 22:58:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-19 22:58:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-19 22:58:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-19 22:58:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-19 22:58:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-19 22:58:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-19 22:58:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-19 22:58:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-19 22:58:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-19 22:58:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 22:58:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-19 22:58:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-19 22:58:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-19 22:58:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-19 22:58:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 22:58:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-19 22:58:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-19 22:58:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 22:58:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 22:58:25,194 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 22:58:25,196 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 22:58:25,732 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 22:58:25,812 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 22:58:25,813 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 22:58:25,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:58:25 BoogieIcfgContainer [2023-12-19 22:58:25,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 22:58:25,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 22:58:25,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 22:58:25,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 22:58:25,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:58:24" (1/3) ... [2023-12-19 22:58:25,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de1dc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:58:25, skipping insertion in model container [2023-12-19 22:58:25,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:58:24" (2/3) ... [2023-12-19 22:58:25,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de1dc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:58:25, skipping insertion in model container [2023-12-19 22:58:25,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:58:25" (3/3) ... [2023-12-19 22:58:25,820 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product36.cil.c [2023-12-19 22:58:25,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 22:58:25,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 22:58:25,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 22:58:25,883 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;@5f3fcbd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 22:58:25,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 22:58:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 161 states have (on average 1.6335403726708075) internal successors, (263), 164 states have internal predecessors, (263), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-19 22:58:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-19 22:58:25,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:25,902 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:25,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:25,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash -452624574, now seen corresponding path program 1 times [2023-12-19 22:58:25,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:25,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042487431] [2023-12-19 22:58:25,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:25,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:58:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:58:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:58:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:58:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:58:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:58:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:58:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:58:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:58:26,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:26,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042487431] [2023-12-19 22:58:26,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042487431] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:58:26,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586199220] [2023-12-19 22:58:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:26,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:26,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:58:26,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 22:58:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:26,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 22:58:26,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:58:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:58:26,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:58:26,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586199220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:26,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:58:26,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-19 22:58:26,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693358053] [2023-12-19 22:58:26,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:26,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 22:58:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:26,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 22:58:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:58:26,934 INFO L87 Difference]: Start difference. First operand has 208 states, 161 states have (on average 1.6335403726708075) internal successors, (263), 164 states have internal predecessors, (263), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:27,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:27,043 INFO L93 Difference]: Finished difference Result 331 states and 506 transitions. [2023-12-19 22:58:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 22:58:27,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2023-12-19 22:58:27,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:27,057 INFO L225 Difference]: With dead ends: 331 [2023-12-19 22:58:27,057 INFO L226 Difference]: Without dead ends: 205 [2023-12-19 22:58:27,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:58:27,065 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:27,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:58:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-19 22:58:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-12-19 22:58:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 159 states have (on average 1.610062893081761) internal successors, (256), 161 states have internal predecessors, (256), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 22:58:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2023-12-19 22:58:27,127 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 317 transitions. Word has length 79 [2023-12-19 22:58:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:27,129 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 317 transitions. [2023-12-19 22:58:27,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 317 transitions. [2023-12-19 22:58:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 22:58:27,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:27,132 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:27,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 22:58:27,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 22:58:27,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:27,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1324088249, now seen corresponding path program 1 times [2023-12-19 22:58:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:27,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402524068] [2023-12-19 22:58:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:27,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:58:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:58:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:58:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:58:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:58:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:58:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:58:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:58:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:58:27,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:27,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402524068] [2023-12-19 22:58:27,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402524068] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:58:27,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137172188] [2023-12-19 22:58:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:27,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:58:27,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 22:58:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:27,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:58:27,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:58:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:58:27,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:58:27,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137172188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:27,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:58:27,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-19 22:58:27,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332407002] [2023-12-19 22:58:27,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:27,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:58:27,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:27,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:58:27,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:58:27,908 INFO L87 Difference]: Start difference. First operand 205 states and 317 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:27,976 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2023-12-19 22:58:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:58:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-12-19 22:58:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:27,981 INFO L225 Difference]: With dead ends: 327 [2023-12-19 22:58:27,981 INFO L226 Difference]: Without dead ends: 207 [2023-12-19 22:58:27,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:58:27,987 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:27,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 605 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:58:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-19 22:58:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-12-19 22:58:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 161 states have (on average 1.6024844720496894) internal successors, (258), 163 states have internal predecessors, (258), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 22:58:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 319 transitions. [2023-12-19 22:58:28,019 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 319 transitions. Word has length 80 [2023-12-19 22:58:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:28,019 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 319 transitions. [2023-12-19 22:58:28,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 319 transitions. [2023-12-19 22:58:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 22:58:28,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:28,031 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:28,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 22:58:28,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 22:58:28,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:28,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:28,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1575361120, now seen corresponding path program 1 times [2023-12-19 22:58:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:28,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805841398] [2023-12-19 22:58:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:28,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:58:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:58:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:58:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:58:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:58:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:58:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:58:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:58:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 22:58:28,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805841398] [2023-12-19 22:58:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805841398] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:58:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852959444] [2023-12-19 22:58:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:28,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:28,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:28,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:58:28,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 22:58:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:28,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 22:58:28,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:58:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 22:58:28,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:58:28,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852959444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:28,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:58:28,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-19 22:58:28,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803227262] [2023-12-19 22:58:28,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:28,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:58:28,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:28,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:58:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:58:28,758 INFO L87 Difference]: Start difference. First operand 207 states and 319 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:28,856 INFO L93 Difference]: Finished difference Result 411 states and 635 transitions. [2023-12-19 22:58:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:58:28,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 84 [2023-12-19 22:58:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:28,861 INFO L225 Difference]: With dead ends: 411 [2023-12-19 22:58:28,863 INFO L226 Difference]: Without dead ends: 209 [2023-12-19 22:58:28,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:58:28,867 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 8 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:28,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1165 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:58:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-19 22:58:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-12-19 22:58:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 162 states have (on average 1.5987654320987654) internal successors, (259), 165 states have internal predecessors, (259), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (32), 29 states have call predecessors, (32), 30 states have call successors, (32) [2023-12-19 22:58:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 322 transitions. [2023-12-19 22:58:28,880 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 322 transitions. Word has length 84 [2023-12-19 22:58:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:28,880 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 322 transitions. [2023-12-19 22:58:28,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 322 transitions. [2023-12-19 22:58:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 22:58:28,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:28,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:58:28,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 22:58:29,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:29,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:29,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1932376290, now seen corresponding path program 1 times [2023-12-19 22:58:29,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:29,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104669156] [2023-12-19 22:58:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:29,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:58:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:58:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:58:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:58:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:58:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:58:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:58:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 22:58:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104669156] [2023-12-19 22:58:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104669156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:29,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:29,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:58:29,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060588496] [2023-12-19 22:58:29,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:29,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:58:29,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:58:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:58:29,238 INFO L87 Difference]: Start difference. First operand 209 states and 322 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:30,655 INFO L93 Difference]: Finished difference Result 539 states and 861 transitions. [2023-12-19 22:58:30,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 22:58:30,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2023-12-19 22:58:30,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:30,659 INFO L225 Difference]: With dead ends: 539 [2023-12-19 22:58:30,659 INFO L226 Difference]: Without dead ends: 345 [2023-12-19 22:58:30,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:58:30,661 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 521 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:30,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 654 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 22:58:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-19 22:58:30,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 209. [2023-12-19 22:58:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 162 states have (on average 1.5987654320987654) internal successors, (259), 165 states have internal predecessors, (259), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (31), 29 states have call predecessors, (31), 30 states have call successors, (31) [2023-12-19 22:58:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 321 transitions. [2023-12-19 22:58:30,733 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 321 transitions. Word has length 85 [2023-12-19 22:58:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:30,734 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 321 transitions. [2023-12-19 22:58:30,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 321 transitions. [2023-12-19 22:58:30,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 22:58:30,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:30,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:30,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 22:58:30,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:30,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:30,741 INFO L85 PathProgramCache]: Analyzing trace with hash -224487804, now seen corresponding path program 2 times [2023-12-19 22:58:30,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:30,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119646450] [2023-12-19 22:58:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:30,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:58:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 22:58:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:58:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:58:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:58:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:58:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:58:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 22:58:30,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:30,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119646450] [2023-12-19 22:58:30,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119646450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:30,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:30,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:58:30,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665488115] [2023-12-19 22:58:30,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:30,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:58:30,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:30,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:58:30,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:58:30,887 INFO L87 Difference]: Start difference. First operand 209 states and 321 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:32,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:32,226 INFO L93 Difference]: Finished difference Result 541 states and 864 transitions. [2023-12-19 22:58:32,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 22:58:32,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2023-12-19 22:58:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:32,229 INFO L225 Difference]: With dead ends: 541 [2023-12-19 22:58:32,229 INFO L226 Difference]: Without dead ends: 347 [2023-12-19 22:58:32,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:58:32,231 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 517 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:32,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 654 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 22:58:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-19 22:58:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 211. [2023-12-19 22:58:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 163 states have (on average 1.5950920245398772) internal successors, (260), 167 states have internal predecessors, (260), 31 states have call successors, (31), 14 states have call predecessors, (31), 16 states have return successors, (33), 29 states have call predecessors, (33), 30 states have call successors, (33) [2023-12-19 22:58:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 324 transitions. [2023-12-19 22:58:32,248 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 324 transitions. Word has length 86 [2023-12-19 22:58:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:32,248 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 324 transitions. [2023-12-19 22:58:32,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-19 22:58:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 324 transitions. [2023-12-19 22:58:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 22:58:32,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:32,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:58:32,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 22:58:32,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:32,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1417814457, now seen corresponding path program 1 times [2023-12-19 22:58:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:32,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924584682] [2023-12-19 22:58:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:58:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:58:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:58:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:58:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:58:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:58:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:58:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:32,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:32,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924584682] [2023-12-19 22:58:32,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924584682] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:58:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771710615] [2023-12-19 22:58:32,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:32,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:32,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:32,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:58:32,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 22:58:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:32,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:58:32,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:58:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:32,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:58:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771710615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:58:32,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:58:32,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-19 22:58:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952061133] [2023-12-19 22:58:32,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:58:32,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:58:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:32,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:58:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:32,674 INFO L87 Difference]: Start difference. First operand 211 states and 324 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 22:58:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:33,960 INFO L93 Difference]: Finished difference Result 632 states and 1041 transitions. [2023-12-19 22:58:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:58:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 87 [2023-12-19 22:58:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:33,964 INFO L225 Difference]: With dead ends: 632 [2023-12-19 22:58:33,964 INFO L226 Difference]: Without dead ends: 512 [2023-12-19 22:58:33,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:58:33,966 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 855 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:33,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 759 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1849 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 22:58:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-19 22:58:33,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 361. [2023-12-19 22:58:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 304 states have (on average 1.7138157894736843) internal successors, (521), 308 states have internal predecessors, (521), 40 states have call successors, (40), 14 states have call predecessors, (40), 16 states have return successors, (42), 38 states have call predecessors, (42), 39 states have call successors, (42) [2023-12-19 22:58:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 603 transitions. [2023-12-19 22:58:33,987 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 603 transitions. Word has length 87 [2023-12-19 22:58:33,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:33,987 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 603 transitions. [2023-12-19 22:58:33,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 22:58:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 603 transitions. [2023-12-19 22:58:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 22:58:33,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:33,989 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:33,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 22:58:34,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:34,196 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:34,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:34,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1543428022, now seen corresponding path program 1 times [2023-12-19 22:58:34,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:34,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228374832] [2023-12-19 22:58:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:34,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 22:58:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:58:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:58:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:58:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:58:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:58:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:58:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:34,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:34,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228374832] [2023-12-19 22:58:34,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228374832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:34,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:34,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:34,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008844343] [2023-12-19 22:58:34,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:34,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:34,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:34,283 INFO L87 Difference]: Start difference. First operand 361 states and 603 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:35,257 INFO L93 Difference]: Finished difference Result 990 states and 1699 transitions. [2023-12-19 22:58:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-12-19 22:58:35,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:35,262 INFO L225 Difference]: With dead ends: 990 [2023-12-19 22:58:35,262 INFO L226 Difference]: Without dead ends: 651 [2023-12-19 22:58:35,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:35,264 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 596 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:35,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 476 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 22:58:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-12-19 22:58:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 510. [2023-12-19 22:58:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 444 states have (on average 1.7454954954954955) internal successors, (775), 448 states have internal predecessors, (775), 49 states have call successors, (49), 14 states have call predecessors, (49), 16 states have return successors, (51), 47 states have call predecessors, (51), 48 states have call successors, (51) [2023-12-19 22:58:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 875 transitions. [2023-12-19 22:58:35,290 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 875 transitions. Word has length 94 [2023-12-19 22:58:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:35,291 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 875 transitions. [2023-12-19 22:58:35,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 875 transitions. [2023-12-19 22:58:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 22:58:35,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:35,293 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 22:58:35,293 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:35,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1086026927, now seen corresponding path program 1 times [2023-12-19 22:58:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:35,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139080589] [2023-12-19 22:58:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:35,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:58:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:58:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:58:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:58:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 22:58:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:58:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:58:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:35,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:35,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139080589] [2023-12-19 22:58:35,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139080589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:35,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:35,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:35,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501077080] [2023-12-19 22:58:35,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:35,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:35,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:35,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:35,393 INFO L87 Difference]: Start difference. First operand 510 states and 875 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:36,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:36,339 INFO L93 Difference]: Finished difference Result 1351 states and 2361 transitions. [2023-12-19 22:58:36,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:36,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2023-12-19 22:58:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:36,345 INFO L225 Difference]: With dead ends: 1351 [2023-12-19 22:58:36,345 INFO L226 Difference]: Without dead ends: 878 [2023-12-19 22:58:36,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:36,347 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 596 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:36,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 458 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-19 22:58:36,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 737. [2023-12-19 22:58:36,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 656 states have (on average 1.763719512195122) internal successors, (1157), 660 states have internal predecessors, (1157), 64 states have call successors, (64), 14 states have call predecessors, (64), 16 states have return successors, (66), 62 states have call predecessors, (66), 63 states have call successors, (66) [2023-12-19 22:58:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1287 transitions. [2023-12-19 22:58:36,376 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1287 transitions. Word has length 95 [2023-12-19 22:58:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:36,377 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1287 transitions. [2023-12-19 22:58:36,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1287 transitions. [2023-12-19 22:58:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 22:58:36,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:36,380 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:36,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 22:58:36,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:36,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1336493944, now seen corresponding path program 1 times [2023-12-19 22:58:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:36,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082900889] [2023-12-19 22:58:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:36,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:58:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:58:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:58:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 22:58:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:58:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 22:58:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:58:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082900889] [2023-12-19 22:58:36,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082900889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:36,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:36,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020942789] [2023-12-19 22:58:36,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:36,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:36,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:36,456 INFO L87 Difference]: Start difference. First operand 737 states and 1287 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:37,384 INFO L93 Difference]: Finished difference Result 1943 states and 3436 transitions. [2023-12-19 22:58:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2023-12-19 22:58:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:37,391 INFO L225 Difference]: With dead ends: 1943 [2023-12-19 22:58:37,391 INFO L226 Difference]: Without dead ends: 1260 [2023-12-19 22:58:37,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:37,393 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 592 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:37,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 466 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2023-12-19 22:58:37,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1119. [2023-12-19 22:58:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1014 states have (on average 1.7692307692307692) internal successors, (1794), 1018 states have internal predecessors, (1794), 88 states have call successors, (88), 14 states have call predecessors, (88), 16 states have return successors, (90), 86 states have call predecessors, (90), 87 states have call successors, (90) [2023-12-19 22:58:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1972 transitions. [2023-12-19 22:58:37,435 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1972 transitions. Word has length 96 [2023-12-19 22:58:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:37,435 INFO L495 AbstractCegarLoop]: Abstraction has 1119 states and 1972 transitions. [2023-12-19 22:58:37,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1972 transitions. [2023-12-19 22:58:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-19 22:58:37,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:37,440 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:37,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 22:58:37,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:37,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash -461032029, now seen corresponding path program 1 times [2023-12-19 22:58:37,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:37,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498507203] [2023-12-19 22:58:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:37,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:58:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:58:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:58:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:58:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:58:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:58:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:58:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:37,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:37,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498507203] [2023-12-19 22:58:37,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498507203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:37,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:37,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:37,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623335380] [2023-12-19 22:58:37,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:37,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:37,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:37,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:37,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:37,534 INFO L87 Difference]: Start difference. First operand 1119 states and 1972 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:38,414 INFO L93 Difference]: Finished difference Result 2898 states and 5157 transitions. [2023-12-19 22:58:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-12-19 22:58:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:38,424 INFO L225 Difference]: With dead ends: 2898 [2023-12-19 22:58:38,424 INFO L226 Difference]: Without dead ends: 1876 [2023-12-19 22:58:38,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:38,428 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 591 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:38,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 466 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2023-12-19 22:58:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1735. [2023-12-19 22:58:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1591 states have (on average 1.7674418604651163) internal successors, (2812), 1595 states have internal predecessors, (2812), 127 states have call successors, (127), 14 states have call predecessors, (127), 16 states have return successors, (129), 125 states have call predecessors, (129), 126 states have call successors, (129) [2023-12-19 22:58:38,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 3068 transitions. [2023-12-19 22:58:38,527 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 3068 transitions. Word has length 97 [2023-12-19 22:58:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:38,528 INFO L495 AbstractCegarLoop]: Abstraction has 1735 states and 3068 transitions. [2023-12-19 22:58:38,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 3068 transitions. [2023-12-19 22:58:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 22:58:38,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:38,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:58:38,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 22:58:38,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:38,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:38,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1840072262, now seen corresponding path program 1 times [2023-12-19 22:58:38,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:38,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712411925] [2023-12-19 22:58:38,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:38,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:58:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:58:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:58:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:58:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:58:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:58:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:58:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:38,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:38,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712411925] [2023-12-19 22:58:38,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712411925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:38,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:38,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:38,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171495451] [2023-12-19 22:58:38,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:38,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:38,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:38,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:38,621 INFO L87 Difference]: Start difference. First operand 1735 states and 3068 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:39,613 INFO L93 Difference]: Finished difference Result 4469 states and 7973 transitions. [2023-12-19 22:58:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:39,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2023-12-19 22:58:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:39,630 INFO L225 Difference]: With dead ends: 4469 [2023-12-19 22:58:39,631 INFO L226 Difference]: Without dead ends: 2904 [2023-12-19 22:58:39,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:39,637 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 589 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:39,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 470 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 22:58:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2023-12-19 22:58:39,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2763. [2023-12-19 22:58:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2553 states have (on average 1.762632197414806) internal successors, (4500), 2557 states have internal predecessors, (4500), 193 states have call successors, (193), 14 states have call predecessors, (193), 16 states have return successors, (195), 191 states have call predecessors, (195), 192 states have call successors, (195) [2023-12-19 22:58:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4888 transitions. [2023-12-19 22:58:39,755 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4888 transitions. Word has length 98 [2023-12-19 22:58:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:39,756 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 4888 transitions. [2023-12-19 22:58:39,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4888 transitions. [2023-12-19 22:58:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 22:58:39,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:39,768 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:39,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 22:58:39,768 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:39,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:39,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2052056929, now seen corresponding path program 1 times [2023-12-19 22:58:39,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:39,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734685751] [2023-12-19 22:58:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:39,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:58:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:58:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:58:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:58:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:58:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:58:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 22:58:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:39,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:39,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734685751] [2023-12-19 22:58:39,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734685751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:39,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:39,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477409455] [2023-12-19 22:58:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:39,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:39,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:39,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:39,867 INFO L87 Difference]: Start difference. First operand 2763 states and 4888 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:40,868 INFO L93 Difference]: Finished difference Result 6956 states and 12420 transitions. [2023-12-19 22:58:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:40,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2023-12-19 22:58:40,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:40,890 INFO L225 Difference]: With dead ends: 6956 [2023-12-19 22:58:40,890 INFO L226 Difference]: Without dead ends: 4538 [2023-12-19 22:58:40,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:40,899 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 588 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:40,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 459 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2023-12-19 22:58:41,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4397. [2023-12-19 22:58:41,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4070 states have (on average 1.7572481572481573) internal successors, (7152), 4074 states have internal predecessors, (7152), 310 states have call successors, (310), 14 states have call predecessors, (310), 16 states have return successors, (312), 308 states have call predecessors, (312), 309 states have call successors, (312) [2023-12-19 22:58:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7774 transitions. [2023-12-19 22:58:41,048 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7774 transitions. Word has length 99 [2023-12-19 22:58:41,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:41,049 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7774 transitions. [2023-12-19 22:58:41,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7774 transitions. [2023-12-19 22:58:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 22:58:41,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:41,063 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 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] [2023-12-19 22:58:41,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:58:41,064 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:41,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 660913390, now seen corresponding path program 2 times [2023-12-19 22:58:41,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:41,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374778988] [2023-12-19 22:58:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:58:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:58:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:58:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:58:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:58:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:58:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 22:58:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 22:58:41,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:41,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374778988] [2023-12-19 22:58:41,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374778988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:41,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:41,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 22:58:41,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138807771] [2023-12-19 22:58:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:41,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 22:58:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 22:58:41,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:58:41,195 INFO L87 Difference]: Start difference. First operand 4397 states and 7774 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:42,374 INFO L93 Difference]: Finished difference Result 7858 states and 13934 transitions. [2023-12-19 22:58:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:58:42,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2023-12-19 22:58:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:42,395 INFO L225 Difference]: With dead ends: 7858 [2023-12-19 22:58:42,396 INFO L226 Difference]: Without dead ends: 4538 [2023-12-19 22:58:42,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:58:42,404 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 693 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:42,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 814 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 22:58:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2023-12-19 22:58:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4397. [2023-12-19 22:58:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4070 states have (on average 1.7476658476658478) internal successors, (7113), 4074 states have internal predecessors, (7113), 310 states have call successors, (310), 14 states have call predecessors, (310), 16 states have return successors, (312), 308 states have call predecessors, (312), 309 states have call successors, (312) [2023-12-19 22:58:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7735 transitions. [2023-12-19 22:58:42,563 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7735 transitions. Word has length 99 [2023-12-19 22:58:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:42,564 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7735 transitions. [2023-12-19 22:58:42,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7735 transitions. [2023-12-19 22:58:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 22:58:42,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:42,578 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:58:42,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 22:58:42,579 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:42,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:42,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2003964932, now seen corresponding path program 1 times [2023-12-19 22:58:42,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:42,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722504728] [2023-12-19 22:58:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:58:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:58:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:58:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:58:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:58:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:58:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:58:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:42,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:42,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722504728] [2023-12-19 22:58:42,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722504728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:42,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:42,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:42,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293270248] [2023-12-19 22:58:42,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:42,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:42,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:42,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:42,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:42,708 INFO L87 Difference]: Start difference. First operand 4397 states and 7735 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:43,663 INFO L93 Difference]: Finished difference Result 11543 states and 20478 transitions. [2023-12-19 22:58:43,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:43,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-12-19 22:58:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:43,700 INFO L225 Difference]: With dead ends: 11543 [2023-12-19 22:58:43,700 INFO L226 Difference]: Without dead ends: 7648 [2023-12-19 22:58:43,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:43,714 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 585 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:43,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 466 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7648 states. [2023-12-19 22:58:43,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7648 to 7507. [2023-12-19 22:58:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7507 states, 6964 states have (on average 1.7406662837449742) internal successors, (12122), 6968 states have internal predecessors, (12122), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2023-12-19 22:58:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7507 states to 7507 states and 13176 transitions. [2023-12-19 22:58:44,021 INFO L78 Accepts]: Start accepts. Automaton has 7507 states and 13176 transitions. Word has length 100 [2023-12-19 22:58:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:44,022 INFO L495 AbstractCegarLoop]: Abstraction has 7507 states and 13176 transitions. [2023-12-19 22:58:44,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7507 states and 13176 transitions. [2023-12-19 22:58:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-19 22:58:44,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:44,048 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:44,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 22:58:44,048 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:44,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:44,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1559898419, now seen corresponding path program 1 times [2023-12-19 22:58:44,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:44,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731234973] [2023-12-19 22:58:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:44,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:58:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:58:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:58:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 22:58:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:58:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:58:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:58:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:44,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:44,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731234973] [2023-12-19 22:58:44,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731234973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:44,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:44,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:44,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379235618] [2023-12-19 22:58:44,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:44,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:44,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:44,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:44,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:44,140 INFO L87 Difference]: Start difference. First operand 7507 states and 13176 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:45,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:45,188 INFO L93 Difference]: Finished difference Result 17226 states and 30256 transitions. [2023-12-19 22:58:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2023-12-19 22:58:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:45,213 INFO L225 Difference]: With dead ends: 17226 [2023-12-19 22:58:45,214 INFO L226 Difference]: Without dead ends: 10978 [2023-12-19 22:58:45,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:45,227 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 584 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:45,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 439 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10978 states. [2023-12-19 22:58:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10978 to 10837. [2023-12-19 22:58:45,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10837 states, 10294 states have (on average 1.7193510782980377) internal successors, (17699), 10298 states have internal predecessors, (17699), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2023-12-19 22:58:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10837 states to 10837 states and 18753 transitions. [2023-12-19 22:58:45,571 INFO L78 Accepts]: Start accepts. Automaton has 10837 states and 18753 transitions. Word has length 101 [2023-12-19 22:58:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:45,572 INFO L495 AbstractCegarLoop]: Abstraction has 10837 states and 18753 transitions. [2023-12-19 22:58:45,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 10837 states and 18753 transitions. [2023-12-19 22:58:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 22:58:45,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:45,600 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 22:58:45,600 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:45,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -179371842, now seen corresponding path program 1 times [2023-12-19 22:58:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554100615] [2023-12-19 22:58:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:58:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:58:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:58:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:58:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:58:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:58:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 22:58:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:45,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:45,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554100615] [2023-12-19 22:58:45,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554100615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:45,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:45,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:45,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586609916] [2023-12-19 22:58:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:45,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:45,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:45,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:45,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:45,675 INFO L87 Difference]: Start difference. First operand 10837 states and 18753 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:46,795 INFO L93 Difference]: Finished difference Result 28977 states and 50400 transitions. [2023-12-19 22:58:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:46,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-12-19 22:58:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:46,867 INFO L225 Difference]: With dead ends: 28977 [2023-12-19 22:58:46,868 INFO L226 Difference]: Without dead ends: 19700 [2023-12-19 22:58:46,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:46,900 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 582 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:46,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 464 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19700 states. [2023-12-19 22:58:47,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19700 to 19559. [2023-12-19 22:58:47,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19559 states, 18605 states have (on average 1.7069604944907284) internal successors, (31758), 18609 states have internal predecessors, (31758), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2023-12-19 22:58:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19559 states to 19559 states and 33634 transitions. [2023-12-19 22:58:47,647 INFO L78 Accepts]: Start accepts. Automaton has 19559 states and 33634 transitions. Word has length 102 [2023-12-19 22:58:47,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:47,648 INFO L495 AbstractCegarLoop]: Abstraction has 19559 states and 33634 transitions. [2023-12-19 22:58:47,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:47,649 INFO L276 IsEmpty]: Start isEmpty. Operand 19559 states and 33634 transitions. [2023-12-19 22:58:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 22:58:47,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:47,688 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:47,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 22:58:47,688 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:47,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1656920761, now seen corresponding path program 1 times [2023-12-19 22:58:47,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:47,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116248831] [2023-12-19 22:58:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:47,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:58:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:58:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:58:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:58:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:58:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:58:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:58:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:47,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:47,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116248831] [2023-12-19 22:58:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116248831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:47,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:47,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750444356] [2023-12-19 22:58:47,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:47,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:47,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:47,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:47,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:47,774 INFO L87 Difference]: Start difference. First operand 19559 states and 33634 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:49,238 INFO L93 Difference]: Finished difference Result 53904 states and 92997 transitions. [2023-12-19 22:58:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:49,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2023-12-19 22:58:49,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:49,353 INFO L225 Difference]: With dead ends: 53904 [2023-12-19 22:58:49,354 INFO L226 Difference]: Without dead ends: 36424 [2023-12-19 22:58:49,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:49,388 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 580 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:49,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 465 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 22:58:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36424 states. [2023-12-19 22:58:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36424 to 36283. [2023-12-19 22:58:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36283 states, 34531 states have (on average 1.692218586197909) internal successors, (58434), 34535 states have internal predecessors, (58434), 1735 states have call successors, (1735), 14 states have call predecessors, (1735), 16 states have return successors, (1737), 1733 states have call predecessors, (1737), 1734 states have call successors, (1737) [2023-12-19 22:58:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36283 states to 36283 states and 61906 transitions. [2023-12-19 22:58:51,084 INFO L78 Accepts]: Start accepts. Automaton has 36283 states and 61906 transitions. Word has length 103 [2023-12-19 22:58:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:51,090 INFO L495 AbstractCegarLoop]: Abstraction has 36283 states and 61906 transitions. [2023-12-19 22:58:51,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 36283 states and 61906 transitions. [2023-12-19 22:58:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 22:58:51,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:51,140 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:51,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 22:58:51,140 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:51,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1289862784, now seen corresponding path program 1 times [2023-12-19 22:58:51,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:51,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300732550] [2023-12-19 22:58:51,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:51,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:58:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:58:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:58:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:58:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:58:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:58:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:58:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:58:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:51,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300732550] [2023-12-19 22:58:51,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300732550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:51,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:58:51,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:58:51,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617079621] [2023-12-19 22:58:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:51,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:58:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:58:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:58:51,222 INFO L87 Difference]: Start difference. First operand 36283 states and 61906 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:53,017 INFO L93 Difference]: Finished difference Result 68925 states and 117589 transitions. [2023-12-19 22:58:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:58:53,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2023-12-19 22:58:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:53,338 INFO L225 Difference]: With dead ends: 68925 [2023-12-19 22:58:53,338 INFO L226 Difference]: Without dead ends: 68805 [2023-12-19 22:58:53,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:58:53,369 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 577 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:53,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 465 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 22:58:53,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68805 states. [2023-12-19 22:58:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68805 to 68664. [2023-12-19 22:58:55,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68664 states, 65343 states have (on average 1.6753133464946512) internal successors, (109470), 65347 states have internal predecessors, (109470), 3304 states have call successors, (3304), 14 states have call predecessors, (3304), 16 states have return successors, (3306), 3302 states have call predecessors, (3306), 3303 states have call successors, (3306) [2023-12-19 22:58:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68664 states to 68664 states and 116080 transitions. [2023-12-19 22:58:55,886 INFO L78 Accepts]: Start accepts. Automaton has 68664 states and 116080 transitions. Word has length 104 [2023-12-19 22:58:55,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:58:55,886 INFO L495 AbstractCegarLoop]: Abstraction has 68664 states and 116080 transitions. [2023-12-19 22:58:55,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:58:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 68664 states and 116080 transitions. [2023-12-19 22:58:55,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 22:58:55,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:58:55,963 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:58:55,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 22:58:55,963 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:58:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:58:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1917665527, now seen corresponding path program 1 times [2023-12-19 22:58:55,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:58:55,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957386407] [2023-12-19 22:58:55,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:55,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:58:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:58:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:58:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:58:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:58:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:58:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:58:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:58:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:58:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 22:58:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:58:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 22:58:56,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:58:56,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957386407] [2023-12-19 22:58:56,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957386407] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:58:56,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853317506] [2023-12-19 22:58:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:58:56,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:58:56,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:58:56,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:58:56,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 22:58:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:58:56,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 22:58:56,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:58:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 22:58:57,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:58:57,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853317506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:58:57,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:58:57,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 26 [2023-12-19 22:58:57,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061747992] [2023-12-19 22:58:57,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:58:57,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 22:58:57,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:58:57,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 22:58:57,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2023-12-19 22:58:57,133 INFO L87 Difference]: Start difference. First operand 68664 states and 116080 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 22:58:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:58:58,255 INFO L93 Difference]: Finished difference Result 68912 states and 116444 transitions. [2023-12-19 22:58:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:58:58,255 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 105 [2023-12-19 22:58:58,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:58:58,586 INFO L225 Difference]: With dead ends: 68912 [2023-12-19 22:58:58,586 INFO L226 Difference]: Without dead ends: 68797 [2023-12-19 22:58:58,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 22:58:58,606 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 488 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:58:58,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 2863 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:58:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68797 states. [2023-12-19 22:59:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68797 to 68787. [2023-12-19 22:59:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68787 states, 65431 states have (on average 1.675016429521175) internal successors, (109598), 65436 states have internal predecessors, (109598), 3326 states have call successors, (3326), 25 states have call predecessors, (3326), 29 states have return successors, (3342), 3325 states have call predecessors, (3342), 3324 states have call successors, (3342) [2023-12-19 22:59:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68787 states to 68787 states and 116266 transitions. [2023-12-19 22:59:00,577 INFO L78 Accepts]: Start accepts. Automaton has 68787 states and 116266 transitions. Word has length 105 [2023-12-19 22:59:00,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:00,577 INFO L495 AbstractCegarLoop]: Abstraction has 68787 states and 116266 transitions. [2023-12-19 22:59:00,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 22:59:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 68787 states and 116266 transitions. [2023-12-19 22:59:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 22:59:00,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:59:00,655 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:59:00,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 22:59:00,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:00,877 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:59:00,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:59:00,877 INFO L85 PathProgramCache]: Analyzing trace with hash -665804090, now seen corresponding path program 1 times [2023-12-19 22:59:00,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:59:00,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903064093] [2023-12-19 22:59:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:00,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:59:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:59:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:59:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:59:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:59:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:59:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:59:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:59:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:59:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:59:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:59:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:59:01,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:59:01,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903064093] [2023-12-19 22:59:01,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903064093] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:59:01,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124373803] [2023-12-19 22:59:01,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:01,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:01,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:59:01,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:59:01,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 22:59:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:01,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 22:59:01,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:59:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 22:59:01,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:59:01,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124373803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:59:01,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:59:01,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2023-12-19 22:59:01,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548326391] [2023-12-19 22:59:01,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:59:01,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 22:59:01,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:59:01,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 22:59:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:59:01,427 INFO L87 Difference]: Start difference. First operand 68787 states and 116266 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:59:02,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:59:02,963 INFO L93 Difference]: Finished difference Result 69058 states and 116673 transitions. [2023-12-19 22:59:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:59:02,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2023-12-19 22:59:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:59:03,129 INFO L225 Difference]: With dead ends: 69058 [2023-12-19 22:59:03,130 INFO L226 Difference]: Without dead ends: 68941 [2023-12-19 22:59:03,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:59:03,146 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 375 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:59:03,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1142 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 22:59:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68941 states. [2023-12-19 22:59:04,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68941 to 68936. [2023-12-19 22:59:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68936 states, 65535 states have (on average 1.6746318760967422) internal successors, (109747), 65541 states have internal predecessors, (109747), 3358 states have call successors, (3358), 35 states have call predecessors, (3358), 42 states have return successors, (3388), 3359 states have call predecessors, (3388), 3353 states have call successors, (3388) [2023-12-19 22:59:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68936 states to 68936 states and 116493 transitions. [2023-12-19 22:59:05,114 INFO L78 Accepts]: Start accepts. Automaton has 68936 states and 116493 transitions. Word has length 106 [2023-12-19 22:59:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:05,115 INFO L495 AbstractCegarLoop]: Abstraction has 68936 states and 116493 transitions. [2023-12-19 22:59:05,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:59:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 68936 states and 116493 transitions. [2023-12-19 22:59:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 22:59:05,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:59:05,182 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:59:05,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 22:59:05,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:05,390 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:59:05,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:59:05,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1220556202, now seen corresponding path program 1 times [2023-12-19 22:59:05,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:59:05,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438241867] [2023-12-19 22:59:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:05,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:59:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:59:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:59:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:59:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:59:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:59:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:59:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:59:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:59:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:59:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:59:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 22:59:06,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:59:06,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438241867] [2023-12-19 22:59:06,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438241867] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:59:06,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131547297] [2023-12-19 22:59:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:06,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:06,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:59:06,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:59:06,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 22:59:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:06,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 22:59:06,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:59:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 22:59:06,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:59:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131547297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:59:06,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:59:06,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2023-12-19 22:59:06,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830015141] [2023-12-19 22:59:06,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:59:06,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 22:59:06,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:59:06,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 22:59:06,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2023-12-19 22:59:06,511 INFO L87 Difference]: Start difference. First operand 68936 states and 116493 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 22:59:07,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:59:07,932 INFO L93 Difference]: Finished difference Result 69267 states and 116993 transitions. [2023-12-19 22:59:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 22:59:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 106 [2023-12-19 22:59:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:59:08,157 INFO L225 Difference]: With dead ends: 69267 [2023-12-19 22:59:08,157 INFO L226 Difference]: Without dead ends: 69005 [2023-12-19 22:59:08,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=1676, Unknown=0, NotChecked=0, Total=1892 [2023-12-19 22:59:08,170 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 536 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:59:08,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 3446 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 22:59:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69005 states. [2023-12-19 22:59:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69005 to 68951. [2023-12-19 22:59:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68951 states, 65546 states have (on average 1.674564428035273) internal successors, (109761), 65551 states have internal predecessors, (109761), 3362 states have call successors, (3362), 35 states have call predecessors, (3362), 42 states have return successors, (3393), 3364 states have call predecessors, (3393), 3357 states have call successors, (3393) [2023-12-19 22:59:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68951 states to 68951 states and 116516 transitions. [2023-12-19 22:59:09,922 INFO L78 Accepts]: Start accepts. Automaton has 68951 states and 116516 transitions. Word has length 106 [2023-12-19 22:59:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:09,922 INFO L495 AbstractCegarLoop]: Abstraction has 68951 states and 116516 transitions. [2023-12-19 22:59:09,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 22:59:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 68951 states and 116516 transitions. [2023-12-19 22:59:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 22:59:09,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:59:09,972 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:59:09,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 22:59:10,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:10,182 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:59:10,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:59:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash -540902440, now seen corresponding path program 1 times [2023-12-19 22:59:10,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:59:10,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736925531] [2023-12-19 22:59:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:10,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:59:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:59:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:59:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:59:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:59:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:59:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:59:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:59:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:59:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:59:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:59:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:59:10,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:59:10,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736925531] [2023-12-19 22:59:10,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736925531] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:59:10,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816644007] [2023-12-19 22:59:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:10,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:59:10,312 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:59:10,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 22:59:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:10,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 22:59:10,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:59:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 22:59:10,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:59:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816644007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:59:10,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:59:10,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2023-12-19 22:59:10,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594382593] [2023-12-19 22:59:10,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:59:10,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 22:59:10,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:59:10,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 22:59:10,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:59:10,613 INFO L87 Difference]: Start difference. First operand 68951 states and 116516 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-19 22:59:11,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:59:11,855 INFO L93 Difference]: Finished difference Result 69574 states and 117506 transitions. [2023-12-19 22:59:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:59:11,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 107 [2023-12-19 22:59:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:59:11,996 INFO L225 Difference]: With dead ends: 69574 [2023-12-19 22:59:11,997 INFO L226 Difference]: Without dead ends: 69174 [2023-12-19 22:59:12,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:59:12,012 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 146 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:59:12,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 2886 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 22:59:12,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69174 states. [2023-12-19 22:59:13,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69174 to 69167. [2023-12-19 22:59:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69167 states, 65693 states have (on average 1.6738769731934908) internal successors, (109962), 65700 states have internal predecessors, (109962), 3424 states have call successors, (3424), 40 states have call predecessors, (3424), 49 states have return successors, (3485), 3426 states have call predecessors, (3485), 3415 states have call successors, (3485) [2023-12-19 22:59:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69167 states to 69167 states and 116871 transitions. [2023-12-19 22:59:13,651 INFO L78 Accepts]: Start accepts. Automaton has 69167 states and 116871 transitions. Word has length 107 [2023-12-19 22:59:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:13,651 INFO L495 AbstractCegarLoop]: Abstraction has 69167 states and 116871 transitions. [2023-12-19 22:59:13,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-19 22:59:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 69167 states and 116871 transitions. [2023-12-19 22:59:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 22:59:13,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:59:13,696 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 22:59:13,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 22:59:13,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-19 22:59:13,898 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:59:13,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:59:13,898 INFO L85 PathProgramCache]: Analyzing trace with hash 703862041, now seen corresponding path program 1 times [2023-12-19 22:59:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:59:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440211349] [2023-12-19 22:59:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:59:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:59:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:59:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:59:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:59:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:59:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:59:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:59:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:59:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:59:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:59:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:59:14,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:59:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440211349] [2023-12-19 22:59:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440211349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:59:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172534143] [2023-12-19 22:59:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:59:14,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:59:14,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 22:59:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:14,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 22:59:14,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:59:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 22:59:14,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:59:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172534143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:59:14,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:59:14,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-19 22:59:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553381717] [2023-12-19 22:59:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:59:14,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:59:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:59:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:59:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:59:14,270 INFO L87 Difference]: Start difference. First operand 69167 states and 116871 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:59:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:59:15,457 INFO L93 Difference]: Finished difference Result 69777 states and 117832 transitions. [2023-12-19 22:59:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:59:15,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2023-12-19 22:59:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:59:15,628 INFO L225 Difference]: With dead ends: 69777 [2023-12-19 22:59:15,628 INFO L226 Difference]: Without dead ends: 69190 [2023-12-19 22:59:15,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:59:15,648 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 3 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:59:15,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1218 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:59:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69190 states. [2023-12-19 22:59:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69190 to 69175. [2023-12-19 22:59:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69175 states, 65701 states have (on average 1.6737035965967033) internal successors, (109964), 65706 states have internal predecessors, (109964), 3424 states have call successors, (3424), 40 states have call predecessors, (3424), 49 states have return successors, (3486), 3428 states have call predecessors, (3486), 3415 states have call successors, (3486) [2023-12-19 22:59:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69175 states to 69175 states and 116874 transitions. [2023-12-19 22:59:17,379 INFO L78 Accepts]: Start accepts. Automaton has 69175 states and 116874 transitions. Word has length 107 [2023-12-19 22:59:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:17,379 INFO L495 AbstractCegarLoop]: Abstraction has 69175 states and 116874 transitions. [2023-12-19 22:59:17,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 22:59:17,379 INFO L276 IsEmpty]: Start isEmpty. Operand 69175 states and 116874 transitions. [2023-12-19 22:59:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 22:59:17,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:59:17,427 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:59:17,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 22:59:17,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:59:17,635 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:59:17,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:59:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash 969561178, now seen corresponding path program 1 times [2023-12-19 22:59:17,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:59:17,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949153763] [2023-12-19 22:59:17,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:59:17,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:59:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:59:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:59:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:59:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:59:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:59:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:59:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:59:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:59:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:59:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:59:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:59:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:59:17,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:59:17,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949153763] [2023-12-19 22:59:17,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949153763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:59:17,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:59:17,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:59:17,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729535323] [2023-12-19 22:59:17,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:59:17,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:59:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:59:17,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:59:17,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:59:17,802 INFO L87 Difference]: Start difference. First operand 69175 states and 116874 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-19 22:59:20,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:59:20,328 INFO L93 Difference]: Finished difference Result 69965 states and 118313 transitions. [2023-12-19 22:59:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 22:59:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 107 [2023-12-19 22:59:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:59:20,330 INFO L225 Difference]: With dead ends: 69965 [2023-12-19 22:59:20,330 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 22:59:20,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-12-19 22:59:20,373 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 615 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:59:20,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 669 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 22:59:20,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 22:59:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 22:59:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 22:59:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 22:59:20,376 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2023-12-19 22:59:20,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:59:20,376 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 22:59:20,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-19 22:59:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 22:59:20,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 22:59:20,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 22:59:20,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 22:59:20,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 22:59:59,178 WARN L293 SmtUtils]: Spent 38.76s on a formula simplification. DAG size of input: 1131 DAG size of output: 1130 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-19 23:12:30,610 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-4-8-2-3-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-57-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-8-4-7-1 context. [2023-12-19 23:12:30,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:12:30,616 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 [2023-12-19 23:12:30,620 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-19 23:12:30,621 INFO L158 Benchmark]: Toolchain (without parser) took 846456.93ms. Allocated memory was 317.7MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 267.6MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-19 23:12:30,621 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 195.0MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:12:30,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.08ms. Allocated memory is still 317.7MB. Free memory was 267.6MB in the beginning and 229.1MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-19 23:12:30,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.18ms. Allocated memory is still 317.7MB. Free memory was 229.1MB in the beginning and 224.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 23:12:30,622 INFO L158 Benchmark]: Boogie Preprocessor took 86.19ms. Allocated memory is still 317.7MB. Free memory was 224.4MB in the beginning and 219.4MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 23:12:30,622 INFO L158 Benchmark]: RCFGBuilder took 852.68ms. Allocated memory is still 317.7MB. Free memory was 219.1MB in the beginning and 235.1MB in the end (delta: -15.9MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2023-12-19 23:12:30,622 INFO L158 Benchmark]: TraceAbstraction took 844805.60ms. Allocated memory was 317.7MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 234.5MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-19 23:12:30,623 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 195.0MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 638.08ms. Allocated memory is still 317.7MB. Free memory was 267.6MB in the beginning and 229.1MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.18ms. Allocated memory is still 317.7MB. Free memory was 229.1MB in the beginning and 224.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.19ms. Allocated memory is still 317.7MB. Free memory was 224.4MB in the beginning and 219.4MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 852.68ms. Allocated memory is still 317.7MB. Free memory was 219.1MB in the beginning and 235.1MB in the end (delta: -15.9MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * TraceAbstraction took 844805.60ms. Allocated memory was 317.7MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 234.5MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.7GB. 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,"featureselect.i","") [48] - GenericResultAtLocation [Line: 97]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [97] - GenericResultAtLocation [Line: 463]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [463] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [481] - GenericResultAtLocation [Line: 490]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [490] - GenericResultAtLocation [Line: 1570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1570] - GenericResultAtLocation [Line: 1641]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1641] - GenericResultAtLocation [Line: 1881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1881] - GenericResultAtLocation [Line: 2288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2288] - GenericResultAtLocation [Line: 2307]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2307] - GenericResultAtLocation [Line: 2509]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2509] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown