./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:22,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:22,769 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:41:22,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:22,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:22,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:22,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:22,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:22,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:22,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:22,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:22,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:22,830 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:22,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:22,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:22,832 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:22,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:22,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:22,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:22,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:22,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:22,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:22,839 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:22,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:22,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:22,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:22,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:22,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:22,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:22,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:22,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:22,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:22,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:22,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:22,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:22,846 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:22,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:22,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:22,847 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:22,847 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf [2023-11-19 07:41:23,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:23,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:23,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:23,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:23,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:23,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2023-11-19 07:41:26,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:26,834 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:26,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2023-11-19 07:41:26,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/data/dddd34411/138dfb967e0b41cdb703db85298419cf/FLAG3c3175ed4 [2023-11-19 07:41:26,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/data/dddd34411/138dfb967e0b41cdb703db85298419cf [2023-11-19 07:41:26,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:26,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:26,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:26,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:26,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:26,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:26" (1/1) ... [2023-11-19 07:41:26,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6433f3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:26, skipping insertion in model container [2023-11-19 07:41:26,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:26" (1/1) ... [2023-11-19 07:41:27,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:27,233 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-11-19 07:41:27,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:27,809 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:27,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-11-19 07:41:27,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2023-11-19 07:41:27,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [75] [2023-11-19 07:41:27,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [308] [2023-11-19 07:41:27,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [357] [2023-11-19 07:41:27,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1437] [2023-11-19 07:41:27,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1849] [2023-11-19 07:41:27,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1948] [2023-11-19 07:41:27,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2314] [2023-11-19 07:41:27,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2619] [2023-11-19 07:41:27,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2985] [2023-11-19 07:41:27,840 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-11-19 07:41:27,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:27,980 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:41:27,988 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:27,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27 WrapperNode [2023-11-19 07:41:27,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:27,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:27,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:27,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:27,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,111 INFO L138 Inliner]: procedures = 133, calls = 228, calls flagged for inlining = 64, calls inlined = 61, statements flattened = 1122 [2023-11-19 07:41:28,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:28,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:28,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:28,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:28,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:28,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:28,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:28,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:28,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-19 07:41:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-19 07:41:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 07:41:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 07:41:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 07:41:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 07:41:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 07:41:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 07:41:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:41:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:41:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 07:41:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 07:41:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 07:41:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 07:41:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 07:41:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 07:41:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 07:41:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 07:41:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 07:41:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 07:41:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 07:41:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 07:41:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 07:41:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 07:41:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 07:41:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 07:41:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 07:41:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 07:41:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 07:41:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 07:41:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 07:41:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 07:41:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 07:41:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 07:41:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 07:41:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 07:41:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 07:41:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 07:41:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 07:41:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 07:41:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 07:41:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 07:41:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 07:41:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 07:41:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 07:41:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 07:41:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 07:41:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:28,623 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:28,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:29,663 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:29,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:29,686 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:41:29,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:29 BoogieIcfgContainer [2023-11-19 07:41:29,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:29,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:29,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:29,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:29,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:26" (1/3) ... [2023-11-19 07:41:29,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b7649a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:29, skipping insertion in model container [2023-11-19 07:41:29,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (2/3) ... [2023-11-19 07:41:29,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b7649a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:29, skipping insertion in model container [2023-11-19 07:41:29,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:29" (3/3) ... [2023-11-19 07:41:29,711 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2023-11-19 07:41:29,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:29,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:41:29,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:29,814 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;@4bc55bfd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:29,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:41:29,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 405 states, 320 states have (on average 1.5625) internal successors, (500), 323 states have internal predecessors, (500), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-19 07:41:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:41:29,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:29,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:29,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:29,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash 188257378, now seen corresponding path program 1 times [2023-11-19 07:41:29,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:29,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076309008] [2023-11-19 07:41:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:29,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:41:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:41:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:41:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:41:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:41:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:41:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:41:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:41:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:41:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:41:30,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:30,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076309008] [2023-11-19 07:41:30,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076309008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528887567] [2023-11-19 07:41:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:30,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:41:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:41:31,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:31,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528887567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:31,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:31,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-19 07:41:31,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205124605] [2023-11-19 07:41:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:31,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:31,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:31,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:31,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:31,315 INFO L87 Difference]: Start difference. First operand has 405 states, 320 states have (on average 1.5625) internal successors, (500), 323 states have internal predecessors, (500), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:31,388 INFO L93 Difference]: Finished difference Result 612 states and 922 transitions. [2023-11-19 07:41:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:31,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-11-19 07:41:31,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:31,409 INFO L225 Difference]: With dead ends: 612 [2023-11-19 07:41:31,409 INFO L226 Difference]: Without dead ends: 398 [2023-11-19 07:41:31,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:31,420 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:31,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-19 07:41:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2023-11-19 07:41:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 314 states have (on average 1.5573248407643312) internal successors, (489), 316 states have internal predecessors, (489), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-19 07:41:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 608 transitions. [2023-11-19 07:41:31,504 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 608 transitions. Word has length 101 [2023-11-19 07:41:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:31,506 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 608 transitions. [2023-11-19 07:41:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 608 transitions. [2023-11-19 07:41:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 07:41:31,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:31,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:31,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:41:31,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:31,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2053452095, now seen corresponding path program 1 times [2023-11-19 07:41:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135706053] [2023-11-19 07:41:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:41:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:41:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:41:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:41:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:41:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:41:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:41:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:41:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:41:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:41:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135706053] [2023-11-19 07:41:32,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135706053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:32,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675621192] [2023-11-19 07:41:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:32,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:32,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:32,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:32,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:41:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:41:32,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675621192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:32,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:41:32,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145935709] [2023-11-19 07:41:32,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:32,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:32,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:32,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:32,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:32,498 INFO L87 Difference]: Start difference. First operand 398 states and 608 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:32,555 INFO L93 Difference]: Finished difference Result 602 states and 900 transitions. [2023-11-19 07:41:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:32,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2023-11-19 07:41:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:32,564 INFO L225 Difference]: With dead ends: 602 [2023-11-19 07:41:32,565 INFO L226 Difference]: Without dead ends: 401 [2023-11-19 07:41:32,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:32,568 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 1 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:32,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1210 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-19 07:41:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 400. [2023-11-19 07:41:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 318 states have internal predecessors, (491), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-19 07:41:32,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 610 transitions. [2023-11-19 07:41:32,619 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 610 transitions. Word has length 102 [2023-11-19 07:41:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:32,622 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 610 transitions. [2023-11-19 07:41:32,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 610 transitions. [2023-11-19 07:41:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:41:32,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:32,629 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:32,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:32,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:41:32,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:32,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1878031989, now seen corresponding path program 1 times [2023-11-19 07:41:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:32,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595395276] [2023-11-19 07:41:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:32,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:41:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:41:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:41:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:41:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:41:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:41:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:41:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:41:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:41:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:41:33,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:33,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595395276] [2023-11-19 07:41:33,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595395276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:33,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253216632] [2023-11-19 07:41:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:33,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:33,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:41:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:41:33,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:33,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253216632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:33,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:33,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:41:33,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200504206] [2023-11-19 07:41:33,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:33,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:33,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:33,614 INFO L87 Difference]: Start difference. First operand 400 states and 610 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:33,686 INFO L93 Difference]: Finished difference Result 853 states and 1320 transitions. [2023-11-19 07:41:33,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:33,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2023-11-19 07:41:33,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:33,692 INFO L225 Difference]: With dead ends: 853 [2023-11-19 07:41:33,692 INFO L226 Difference]: Without dead ends: 480 [2023-11-19 07:41:33,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:33,697 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 142 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:33,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1173 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:33,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-19 07:41:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 472. [2023-11-19 07:41:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 374 states have (on average 1.572192513368984) internal successors, (588), 376 states have internal predecessors, (588), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-19 07:41:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 735 transitions. [2023-11-19 07:41:33,743 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 735 transitions. Word has length 111 [2023-11-19 07:41:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:33,745 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 735 transitions. [2023-11-19 07:41:33,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:41:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 735 transitions. [2023-11-19 07:41:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 07:41:33,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:33,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:33,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:33,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:33,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:33,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1655426612, now seen corresponding path program 1 times [2023-11-19 07:41:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846202203] [2023-11-19 07:41:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:41:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:41:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:41:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:41:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:41:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:41:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:41:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:41:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:41:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:41:34,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:34,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846202203] [2023-11-19 07:41:34,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846202203] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:34,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069099413] [2023-11-19 07:41:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:34,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:34,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:41:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:41:34,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:34,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069099413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:34,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:34,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-19 07:41:34,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725299686] [2023-11-19 07:41:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:34,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:41:34,694 INFO L87 Difference]: Start difference. First operand 472 states and 735 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:34,789 INFO L93 Difference]: Finished difference Result 935 states and 1460 transitions. [2023-11-19 07:41:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:34,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2023-11-19 07:41:34,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:34,795 INFO L225 Difference]: With dead ends: 935 [2023-11-19 07:41:34,795 INFO L226 Difference]: Without dead ends: 474 [2023-11-19 07:41:34,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:41:34,801 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 8 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:34,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2385 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-19 07:41:34,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2023-11-19 07:41:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 375 states have (on average 1.5706666666666667) internal successors, (589), 378 states have internal predecessors, (589), 74 states have call successors, (74), 23 states have call predecessors, (74), 24 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2023-11-19 07:41:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 738 transitions. [2023-11-19 07:41:34,842 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 738 transitions. Word has length 112 [2023-11-19 07:41:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:34,842 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 738 transitions. [2023-11-19 07:41:34,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 738 transitions. [2023-11-19 07:41:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:41:34,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:34,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:34,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:35,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:35,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 588133733, now seen corresponding path program 1 times [2023-11-19 07:41:35,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:35,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773719880] [2023-11-19 07:41:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:35,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:41:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:41:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-19 07:41:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:41:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:41:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:41:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:41:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:41:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:41:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:41:35,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:35,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773719880] [2023-11-19 07:41:35,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773719880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871072437] [2023-11-19 07:41:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:35,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:35,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:35,433 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:35,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:41:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:41:35,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:35,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871072437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:35,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:35,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-19 07:41:35,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069888465] [2023-11-19 07:41:35,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:35,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:35,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:41:35,833 INFO L87 Difference]: Start difference. First operand 474 states and 738 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:35,928 INFO L93 Difference]: Finished difference Result 937 states and 1465 transitions. [2023-11-19 07:41:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:35,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-11-19 07:41:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:35,933 INFO L225 Difference]: With dead ends: 937 [2023-11-19 07:41:35,934 INFO L226 Difference]: Without dead ends: 476 [2023-11-19 07:41:35,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:41:35,937 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 8 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:35,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2371 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:35,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-11-19 07:41:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2023-11-19 07:41:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 376 states have (on average 1.5691489361702127) internal successors, (590), 380 states have internal predecessors, (590), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-19 07:41:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 744 transitions. [2023-11-19 07:41:35,961 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 744 transitions. Word has length 113 [2023-11-19 07:41:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:35,962 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 744 transitions. [2023-11-19 07:41:35,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 744 transitions. [2023-11-19 07:41:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 07:41:35,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:35,966 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:36,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:36,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:36,191 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:36,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1777955454, now seen corresponding path program 1 times [2023-11-19 07:41:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:36,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174386452] [2023-11-19 07:41:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:36,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:41:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:41:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:41:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:41:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:41:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:41:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:41:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:41:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:41:36,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:36,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174386452] [2023-11-19 07:41:36,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174386452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:36,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:41:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005582343] [2023-11-19 07:41:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:41:36,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:41:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:36,479 INFO L87 Difference]: Start difference. First operand 476 states and 744 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:39,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:39,704 INFO L93 Difference]: Finished difference Result 1136 states and 1806 transitions. [2023-11-19 07:41:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:41:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2023-11-19 07:41:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:39,712 INFO L225 Difference]: With dead ends: 1136 [2023-11-19 07:41:39,712 INFO L226 Difference]: Without dead ends: 683 [2023-11-19 07:41:39,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:41:39,715 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1377 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3129 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 3129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:39,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1398 Invalid, 3572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [443 Valid, 3129 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 07:41:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-19 07:41:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 476. [2023-11-19 07:41:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 376 states have (on average 1.5691489361702127) internal successors, (590), 380 states have internal predecessors, (590), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2023-11-19 07:41:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 743 transitions. [2023-11-19 07:41:39,778 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 743 transitions. Word has length 114 [2023-11-19 07:41:39,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:39,779 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 743 transitions. [2023-11-19 07:41:39,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 743 transitions. [2023-11-19 07:41:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 07:41:39,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:39,783 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:39,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:41:39,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:39,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash -418676615, now seen corresponding path program 2 times [2023-11-19 07:41:39,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:39,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704059947] [2023-11-19 07:41:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:39,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:41:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:41:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:41:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:41:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:41:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:41:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:41:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:41:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,080 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:41:40,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:40,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704059947] [2023-11-19 07:41:40,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704059947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:40,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:40,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:41:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591246848] [2023-11-19 07:41:40,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:40,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:41:40,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:40,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:41:40,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:40,084 INFO L87 Difference]: Start difference. First operand 476 states and 743 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:43,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:43,014 INFO L93 Difference]: Finished difference Result 1138 states and 1809 transitions. [2023-11-19 07:41:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:41:43,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-19 07:41:43,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:43,022 INFO L225 Difference]: With dead ends: 1138 [2023-11-19 07:41:43,022 INFO L226 Difference]: Without dead ends: 685 [2023-11-19 07:41:43,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:41:43,025 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1368 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 3610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:43,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 1397 Invalid, 3610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [456 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 07:41:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-19 07:41:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 478. [2023-11-19 07:41:43,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 377 states have (on average 1.5676392572944298) internal successors, (591), 382 states have internal predecessors, (591), 74 states have call successors, (74), 23 states have call predecessors, (74), 26 states have return successors, (81), 72 states have call predecessors, (81), 73 states have call successors, (81) [2023-11-19 07:41:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 746 transitions. [2023-11-19 07:41:43,095 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 746 transitions. Word has length 115 [2023-11-19 07:41:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:43,096 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 746 transitions. [2023-11-19 07:41:43,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 07:41:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 746 transitions. [2023-11-19 07:41:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 07:41:43,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:43,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:41:43,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:43,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1643917113, now seen corresponding path program 1 times [2023-11-19 07:41:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730004356] [2023-11-19 07:41:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:41:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:41:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:41:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:41:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:41:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:41:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:41:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:41:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:41:43,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:43,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730004356] [2023-11-19 07:41:43,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730004356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:43,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:43,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:41:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397651370] [2023-11-19 07:41:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:43,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:41:43,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:41:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:41:43,407 INFO L87 Difference]: Start difference. First operand 478 states and 746 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 07:41:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:47,605 INFO L93 Difference]: Finished difference Result 1136 states and 1804 transitions. [2023-11-19 07:41:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:41:47,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2023-11-19 07:41:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:47,612 INFO L225 Difference]: With dead ends: 1136 [2023-11-19 07:41:47,612 INFO L226 Difference]: Without dead ends: 685 [2023-11-19 07:41:47,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:41:47,617 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1382 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 5131 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 5131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:47,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1931 Invalid, 5591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [460 Valid, 5131 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 07:41:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-19 07:41:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 478. [2023-11-19 07:41:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 377 states have (on average 1.5676392572944298) internal successors, (591), 382 states have internal predecessors, (591), 74 states have call successors, (74), 23 states have call predecessors, (74), 26 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-19 07:41:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 745 transitions. [2023-11-19 07:41:47,661 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 745 transitions. Word has length 116 [2023-11-19 07:41:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:47,662 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 745 transitions. [2023-11-19 07:41:47,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 07:41:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 745 transitions. [2023-11-19 07:41:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 07:41:47,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:47,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:41:47,668 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:47,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1486613876, now seen corresponding path program 2 times [2023-11-19 07:41:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905367049] [2023-11-19 07:41:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:41:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:41:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:41:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:41:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:41:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:41:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:41:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:41:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:41:47,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:47,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905367049] [2023-11-19 07:41:47,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905367049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:47,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:47,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:41:47,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245169565] [2023-11-19 07:41:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:47,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:41:47,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:41:47,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:41:47,994 INFO L87 Difference]: Start difference. First operand 478 states and 745 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 07:41:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:52,072 INFO L93 Difference]: Finished difference Result 1138 states and 1810 transitions. [2023-11-19 07:41:52,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:41:52,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2023-11-19 07:41:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:52,081 INFO L225 Difference]: With dead ends: 1138 [2023-11-19 07:41:52,081 INFO L226 Difference]: Without dead ends: 687 [2023-11-19 07:41:52,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:41:52,084 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1377 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 5197 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 5641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 5197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:52,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1931 Invalid, 5641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [444 Valid, 5197 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-19 07:41:52,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-19 07:41:52,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 480. [2023-11-19 07:41:52,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 378 states have (on average 1.566137566137566) internal successors, (592), 384 states have internal predecessors, (592), 74 states have call successors, (74), 23 states have call predecessors, (74), 27 states have return successors, (85), 72 states have call predecessors, (85), 73 states have call successors, (85) [2023-11-19 07:41:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 751 transitions. [2023-11-19 07:41:52,140 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 751 transitions. Word has length 117 [2023-11-19 07:41:52,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:52,142 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 751 transitions. [2023-11-19 07:41:52,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 07:41:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 751 transitions. [2023-11-19 07:41:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 07:41:52,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:52,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:52,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:41:52,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:52,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:52,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1171729356, now seen corresponding path program 1 times [2023-11-19 07:41:52,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:52,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088557701] [2023-11-19 07:41:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:52,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:41:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:41:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:41:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:41:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:41:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:41:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:41:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:41:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:41:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088557701] [2023-11-19 07:41:52,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088557701] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611930977] [2023-11-19 07:41:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:52,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:52,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:41:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:52,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:41:52,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:41:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611930977] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:52,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:52,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-19 07:41:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924241766] [2023-11-19 07:41:52,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:52,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:41:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:41:52,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:41:52,926 INFO L87 Difference]: Start difference. First operand 480 states and 751 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:41:58,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:58,057 INFO L93 Difference]: Finished difference Result 1603 states and 2647 transitions. [2023-11-19 07:41:58,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:41:58,058 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 118 [2023-11-19 07:41:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:58,069 INFO L225 Difference]: With dead ends: 1603 [2023-11-19 07:41:58,069 INFO L226 Difference]: Without dead ends: 1154 [2023-11-19 07:41:58,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:41:58,073 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 2619 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 7016 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 7842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 7016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:58,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 2389 Invalid, 7842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [826 Valid, 7016 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-19 07:41:58,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2023-11-19 07:41:58,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 923. [2023-11-19 07:41:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 742 states have (on average 1.61455525606469) internal successors, (1198), 748 states have internal predecessors, (1198), 153 states have call successors, (153), 23 states have call predecessors, (153), 27 states have return successors, (174), 151 states have call predecessors, (174), 152 states have call successors, (174) [2023-11-19 07:41:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1525 transitions. [2023-11-19 07:41:58,151 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1525 transitions. Word has length 118 [2023-11-19 07:41:58,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:58,151 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1525 transitions. [2023-11-19 07:41:58,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:41:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1525 transitions. [2023-11-19 07:41:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 07:41:58,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:58,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:58,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:41:58,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4268246-da9e-4ae9-9849-0cb9d5d5de40/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:41:58,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:58,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:58,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2136555292, now seen corresponding path program 1 times [2023-11-19 07:41:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28852609] [2023-11-19 07:41:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:41:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:41:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:41:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:41:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:41:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:41:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:41:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:41:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:41:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:41:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:41:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:41:58,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:58,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28852609] [2023-11-19 07:41:58,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28852609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:58,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:58,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:41:58,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408780574] [2023-11-19 07:41:58,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:58,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:41:58,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:58,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:41:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:41:58,537 INFO L87 Difference]: Start difference. First operand 923 states and 1525 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:01,018 INFO L93 Difference]: Finished difference Result 2398 states and 4056 transitions. [2023-11-19 07:42:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:42:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-11-19 07:42:01,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:01,032 INFO L225 Difference]: With dead ends: 2398 [2023-11-19 07:42:01,032 INFO L226 Difference]: Without dead ends: 1553 [2023-11-19 07:42:01,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:01,037 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1496 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:01,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1045 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:42:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2023-11-19 07:42:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1338. [2023-11-19 07:42:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1078 states have (on average 1.6307977736549164) internal successors, (1758), 1084 states have internal predecessors, (1758), 232 states have call successors, (232), 23 states have call predecessors, (232), 27 states have return successors, (263), 230 states have call predecessors, (263), 231 states have call successors, (263) [2023-11-19 07:42:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 2253 transitions. [2023-11-19 07:42:01,128 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 2253 transitions. Word has length 121 [2023-11-19 07:42:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:01,129 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 2253 transitions. [2023-11-19 07:42:01,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 2253 transitions. [2023-11-19 07:42:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:42:01,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:01,138 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:01,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:42:01,139 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:01,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash -390119952, now seen corresponding path program 1 times [2023-11-19 07:42:01,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:01,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331957007] [2023-11-19 07:42:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:42:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:42:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:42:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:42:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:42:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:42:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:42:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:42:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:42:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:42:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:42:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:42:01,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:01,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331957007] [2023-11-19 07:42:01,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331957007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:01,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:01,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:01,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087528622] [2023-11-19 07:42:01,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:01,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:42:01,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:42:01,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:01,271 INFO L87 Difference]: Start difference. First operand 1338 states and 2253 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:03,561 INFO L93 Difference]: Finished difference Result 3437 states and 5869 transitions. [2023-11-19 07:42:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:42:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-11-19 07:42:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:03,580 INFO L225 Difference]: With dead ends: 3437 [2023-11-19 07:42:03,580 INFO L226 Difference]: Without dead ends: 2230 [2023-11-19 07:42:03,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:03,587 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1500 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:03,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1025 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:42:03,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2023-11-19 07:42:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2015. [2023-11-19 07:42:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 1636 states have (on average 1.6381418092909537) internal successors, (2680), 1642 states have internal predecessors, (2680), 351 states have call successors, (351), 23 states have call predecessors, (351), 27 states have return successors, (382), 349 states have call predecessors, (382), 350 states have call successors, (382) [2023-11-19 07:42:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3413 transitions. [2023-11-19 07:42:03,752 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3413 transitions. Word has length 122 [2023-11-19 07:42:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:03,753 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 3413 transitions. [2023-11-19 07:42:03,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3413 transitions. [2023-11-19 07:42:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:42:03,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:03,766 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:03,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:42:03,766 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:03,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:03,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1948484118, now seen corresponding path program 1 times [2023-11-19 07:42:03,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:03,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50084088] [2023-11-19 07:42:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:03,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:42:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:42:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:42:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:42:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:42:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:42:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:42:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:42:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:42:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:42:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:42:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:42:03,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50084088] [2023-11-19 07:42:03,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50084088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:03,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:03,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:03,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219367673] [2023-11-19 07:42:03,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:03,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:42:03,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:03,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:42:03,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:03,915 INFO L87 Difference]: Start difference. First operand 2015 states and 3413 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:06,292 INFO L93 Difference]: Finished difference Result 5022 states and 8648 transitions. [2023-11-19 07:42:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:42:06,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-11-19 07:42:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:06,321 INFO L225 Difference]: With dead ends: 5022 [2023-11-19 07:42:06,321 INFO L226 Difference]: Without dead ends: 3273 [2023-11-19 07:42:06,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:06,332 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1494 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:06,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1023 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:42:06,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2023-11-19 07:42:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3058. [2023-11-19 07:42:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 2517 states have (on average 1.644020659515296) internal successors, (4138), 2523 states have internal predecessors, (4138), 513 states have call successors, (513), 23 states have call predecessors, (513), 27 states have return successors, (560), 511 states have call predecessors, (560), 512 states have call successors, (560) [2023-11-19 07:42:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 5211 transitions. [2023-11-19 07:42:06,542 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 5211 transitions. Word has length 123 [2023-11-19 07:42:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:06,544 INFO L495 AbstractCegarLoop]: Abstraction has 3058 states and 5211 transitions. [2023-11-19 07:42:06,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 5211 transitions. [2023-11-19 07:42:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:42:06,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:06,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:06,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:42:06,562 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:06,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1144660143, now seen corresponding path program 1 times [2023-11-19 07:42:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917128137] [2023-11-19 07:42:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:42:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:42:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:42:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:42:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:42:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:42:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:42:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:42:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:42:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:42:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:42:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:42:06,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917128137] [2023-11-19 07:42:06,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917128137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:06,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:06,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:06,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078977405] [2023-11-19 07:42:06,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:06,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:42:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:06,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:42:06,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:06,703 INFO L87 Difference]: Start difference. First operand 3058 states and 5211 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:09,044 INFO L93 Difference]: Finished difference Result 7536 states and 13063 transitions. [2023-11-19 07:42:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:42:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2023-11-19 07:42:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:09,081 INFO L225 Difference]: With dead ends: 7536 [2023-11-19 07:42:09,081 INFO L226 Difference]: Without dead ends: 4963 [2023-11-19 07:42:09,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:09,091 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1496 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:09,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1022 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:42:09,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2023-11-19 07:42:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4748. [2023-11-19 07:42:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4748 states, 3962 states have (on average 1.6481574962140333) internal successors, (6530), 3968 states have internal predecessors, (6530), 758 states have call successors, (758), 23 states have call predecessors, (758), 27 states have return successors, (831), 756 states have call predecessors, (831), 757 states have call successors, (831) [2023-11-19 07:42:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4748 states to 4748 states and 8119 transitions. [2023-11-19 07:42:09,389 INFO L78 Accepts]: Start accepts. Automaton has 4748 states and 8119 transitions. Word has length 124 [2023-11-19 07:42:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:09,389 INFO L495 AbstractCegarLoop]: Abstraction has 4748 states and 8119 transitions. [2023-11-19 07:42:09,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:42:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4748 states and 8119 transitions. [2023-11-19 07:42:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:42:09,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:09,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:42:09,422 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:09,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash -54830874, now seen corresponding path program 1 times [2023-11-19 07:42:09,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:09,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66759897] [2023-11-19 07:42:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:09,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:42:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:42:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:42:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:42:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:42:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:42:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:42:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:42:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:42:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:42:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:42:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:42:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:42:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:42:09,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66759897] [2023-11-19 07:42:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66759897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:09,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:09,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:09,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586311980] [2023-11-19 07:42:09,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:09,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:42:09,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:09,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:42:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:09,566 INFO L87 Difference]: Start difference. First operand 4748 states and 8119 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)