./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product23.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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/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 b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:41,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:41,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:58:41,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:41,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:41,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:41,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:41,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:41,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:41,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:41,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:41,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:41,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:41,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:41,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:41,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:41,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:41,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:41,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:41,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:41,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:41,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:41,747 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:41,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:41,748 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:41,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:41,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:41,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:41,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:41,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:41,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:41,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:41,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:41,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:41,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:41,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:41,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:41,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:41,755 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:41,755 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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 [2023-11-19 07:58:42,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:42,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:42,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:42,030 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:42,031 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:42,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2023-11-19 07:58:45,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:45,529 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:45,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2023-11-19 07:58:45,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/data/354379c3b/c0d0a848a4194561b7a6762cb91220cb/FLAG8f931cfca [2023-11-19 07:58:45,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/data/354379c3b/c0d0a848a4194561b7a6762cb91220cb [2023-11-19 07:58:45,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:45,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:45,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:45,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:45,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:45,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:45" (1/1) ... [2023-11-19 07:58:45,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1e8575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:45, skipping insertion in model container [2023-11-19 07:58:45,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:45" (1/1) ... [2023-11-19 07:58:45,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:46,286 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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2023-11-19 07:58:46,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:46,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:46,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-19 07:58:46,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [380] [2023-11-19 07:58:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [415] [2023-11-19 07:58:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1483] [2023-11-19 07:58:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1823] [2023-11-19 07:58:46,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1858] [2023-11-19 07:58:46,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1875] [2023-11-19 07:58:46,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2277] [2023-11-19 07:58:46,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2286] [2023-11-19 07:58:46,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2652] [2023-11-19 07:58:46,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2749] [2023-11-19 07:58:46,492 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_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2023-11-19 07:58:46,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:46,552 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:46,560 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:46,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46 WrapperNode [2023-11-19 07:58:46,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:46,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:46,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:46,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:46,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,696 INFO L138 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 58, calls inlined = 52, statements flattened = 962 [2023-11-19 07:58:46,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:46,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:46,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:46,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:46,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:46,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:46,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:46,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:46,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (1/1) ... [2023-11-19 07:58:46,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:46,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:46,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:46,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 07:58:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 07:58:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 07:58:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 07:58:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 07:58:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 07:58:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:58:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:58:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 07:58:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 07:58:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 07:58:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 07:58:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 07:58:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 07:58:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 07:58:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 07:58:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 07:58:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 07:58:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 07:58:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 07:58:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 07:58:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 07:58:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 07:58:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 07:58:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 07:58:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 07:58:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 07:58:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 07:58:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 07:58:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 07:58:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 07:58:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 07:58:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 07:58:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-11-19 07:58:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-11-19 07:58:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-19 07:58:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-19 07:58:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 07:58:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 07:58:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 07:58:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 07:58:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 07:58:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 07:58:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 07:58:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 07:58:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 07:58:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 07:58:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:47,219 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:47,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:48,179 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:48,203 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:48,203 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:58:48,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:48 BoogieIcfgContainer [2023-11-19 07:58:48,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:48,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:48,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:48,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:48,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:45" (1/3) ... [2023-11-19 07:58:48,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a77511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:48, skipping insertion in model container [2023-11-19 07:58:48,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:46" (2/3) ... [2023-11-19 07:58:48,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a77511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:48, skipping insertion in model container [2023-11-19 07:58:48,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:48" (3/3) ... [2023-11-19 07:58:48,232 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2023-11-19 07:58:48,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:48,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:48,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:48,344 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;@41a3bb39, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:48,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 298 states have (on average 1.5738255033557047) internal successors, (469), 301 states have internal predecessors, (469), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-19 07:58:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 07:58:48,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:48,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:48,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:48,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash 437207129, now seen corresponding path program 1 times [2023-11-19 07:58:48,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:48,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385726454] [2023-11-19 07:58:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:58:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:58:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:58:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:58:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:58:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:58:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:58:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:58:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:58:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:58:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:58:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:58:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:58:49,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:49,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385726454] [2023-11-19 07:58:49,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385726454] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:49,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723342390] [2023-11-19 07:58:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:49,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:49,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:49,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:49,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:58:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:49,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:58:49,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:58:49,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:49,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723342390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:49,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:49,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-19 07:58:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385156472] [2023-11-19 07:58:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:49,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:58:49,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:50,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:58:50,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:50,016 INFO L87 Difference]: Start difference. First operand has 376 states, 298 states have (on average 1.5738255033557047) internal successors, (469), 301 states have internal predecessors, (469), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:58:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:50,140 INFO L93 Difference]: Finished difference Result 559 states and 840 transitions. [2023-11-19 07:58:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:58:50,142 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2023-11-19 07:58:50,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:50,159 INFO L225 Difference]: With dead ends: 559 [2023-11-19 07:58:50,159 INFO L226 Difference]: Without dead ends: 369 [2023-11-19 07:58:50,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 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 07:58:50,168 INFO L413 NwaCegarLoop]: 571 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, 571 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 07:58:50,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-19 07:58:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2023-11-19 07:58:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 292 states have (on average 1.5684931506849316) internal successors, (458), 294 states have internal predecessors, (458), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-19 07:58:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 563 transitions. [2023-11-19 07:58:50,268 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 563 transitions. Word has length 117 [2023-11-19 07:58:50,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:50,270 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 563 transitions. [2023-11-19 07:58:50,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:58:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 563 transitions. [2023-11-19 07:58:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-19 07:58:50,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:50,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:50,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:58:50,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:58:50,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:50,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:50,482 INFO L85 PathProgramCache]: Analyzing trace with hash -523821654, now seen corresponding path program 1 times [2023-11-19 07:58:50,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:50,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431958966] [2023-11-19 07:58:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:58:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:58:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:58:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:58:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:58:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:58:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:58:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:58:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:58:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:58:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:58:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:58:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:58:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:58:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-19 07:58:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:58:50,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431958966] [2023-11-19 07:58:50,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431958966] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:50,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967642797] [2023-11-19 07:58:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:50,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:50,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:50,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:58:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:51,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:51,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 07:58:51,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:51,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967642797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:51,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:51,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:58:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585823362] [2023-11-19 07:58:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:51,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:51,341 INFO L87 Difference]: Start difference. First operand 369 states and 563 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:58:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:51,393 INFO L93 Difference]: Finished difference Result 549 states and 818 transitions. [2023-11-19 07:58:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2023-11-19 07:58:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:51,410 INFO L225 Difference]: With dead ends: 549 [2023-11-19 07:58:51,410 INFO L226 Difference]: Without dead ends: 372 [2023-11-19 07:58:51,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 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 07:58:51,422 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 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 07:58:51,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:51,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-19 07:58:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-19 07:58:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 294 states have (on average 1.564625850340136) internal successors, (460), 296 states have internal predecessors, (460), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-19 07:58:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 565 transitions. [2023-11-19 07:58:51,493 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 565 transitions. Word has length 137 [2023-11-19 07:58:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:51,495 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 565 transitions. [2023-11-19 07:58:51,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:58:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 565 transitions. [2023-11-19 07:58:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 07:58:51,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:51,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:51,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:51,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:51,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:51,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1076550588, now seen corresponding path program 1 times [2023-11-19 07:58:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:51,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414846942] [2023-11-19 07:58:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:58:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:58:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:58:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:58:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:58:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:58:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:58:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:58:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:58:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:58:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:58:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:58:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:58:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414846942] [2023-11-19 07:58:52,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414846942] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587200572] [2023-11-19 07:58:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:52,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:52,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:52,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:52,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:58:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:52,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:52,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:58:52,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:52,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587200572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:52,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:52,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:58:52,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583745367] [2023-11-19 07:58:52,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:52,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:52,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:52,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:52,488 INFO L87 Difference]: Start difference. First operand 371 states and 565 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:58:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:52,567 INFO L93 Difference]: Finished difference Result 790 states and 1222 transitions. [2023-11-19 07:58:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:52,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2023-11-19 07:58:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:52,578 INFO L225 Difference]: With dead ends: 790 [2023-11-19 07:58:52,578 INFO L226 Difference]: Without dead ends: 446 [2023-11-19 07:58:52,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 152 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 07:58:52,585 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 134 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1097 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 07:58:52,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1097 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:52,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-19 07:58:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 438. [2023-11-19 07:58:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 347 states have (on average 1.5821325648414986) internal successors, (549), 349 states have internal predecessors, (549), 67 states have call successors, (67), 23 states have call predecessors, (67), 23 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-19 07:58:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 682 transitions. [2023-11-19 07:58:52,638 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 682 transitions. Word has length 127 [2023-11-19 07:58:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:52,639 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 682 transitions. [2023-11-19 07:58:52,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:58:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 682 transitions. [2023-11-19 07:58:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:58:52,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:52,645 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 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 07:58:52,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:52,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:52,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:52,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1839753603, now seen corresponding path program 1 times [2023-11-19 07:58:52,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:52,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254505391] [2023-11-19 07:58:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:52,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:58:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:58:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:58:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:58:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:58:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:58:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:58:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:58:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:58:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:58:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:58:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:58:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 07:58:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-19 07:58:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-19 07:58:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:58:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254505391] [2023-11-19 07:58:53,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254505391] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959150782] [2023-11-19 07:58:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:53,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:53,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:53,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:53,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:58:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:53,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:58:53,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-19 07:58:53,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:53,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959150782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:53,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:53,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-19 07:58:53,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533961692] [2023-11-19 07:58:53,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:53,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:53,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:58:53,834 INFO L87 Difference]: Start difference. First operand 438 states and 682 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 07:58:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:53,923 INFO L93 Difference]: Finished difference Result 867 states and 1354 transitions. [2023-11-19 07:58:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:53,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2023-11-19 07:58:53,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:53,928 INFO L225 Difference]: With dead ends: 867 [2023-11-19 07:58:53,929 INFO L226 Difference]: Without dead ends: 440 [2023-11-19 07:58:53,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 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 07:58:53,932 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 8 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2205 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 07:58:53,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2205 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:53,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-19 07:58:53,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2023-11-19 07:58:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 348 states have (on average 1.5804597701149425) internal successors, (550), 351 states have internal predecessors, (550), 67 states have call successors, (67), 23 states have call predecessors, (67), 24 states have return successors, (68), 65 states have call predecessors, (68), 66 states have call successors, (68) [2023-11-19 07:58:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 685 transitions. [2023-11-19 07:58:53,976 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 685 transitions. Word has length 147 [2023-11-19 07:58:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:53,976 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 685 transitions. [2023-11-19 07:58:53,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 07:58:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 685 transitions. [2023-11-19 07:58:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:58:53,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:53,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:54,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:54,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:54,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:54,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2129230832, now seen corresponding path program 1 times [2023-11-19 07:58:54,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:54,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119907665] [2023-11-19 07:58:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:54,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:58:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:58:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:58:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-19 07:58:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:58:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:58:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:58:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:58:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:58:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:58:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:58:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-19 07:58:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:58:54,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119907665] [2023-11-19 07:58:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119907665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911368981] [2023-11-19 07:58:54,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:54,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:54,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:54,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:54,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:58:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:54,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:58:54,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:58:54,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:55,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911368981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:55,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:55,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-19 07:58:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316057147] [2023-11-19 07:58:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:55,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:55,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:58:55,003 INFO L87 Difference]: Start difference. First operand 440 states and 685 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 07:58:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:55,098 INFO L93 Difference]: Finished difference Result 869 states and 1359 transitions. [2023-11-19 07:58:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2023-11-19 07:58:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:55,104 INFO L225 Difference]: With dead ends: 869 [2023-11-19 07:58:55,104 INFO L226 Difference]: Without dead ends: 442 [2023-11-19 07:58:55,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 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 07:58:55,108 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 8 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2191 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 07:58:55,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2191 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-11-19 07:58:55,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2023-11-19 07:58:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 349 states have (on average 1.5787965616045845) internal successors, (551), 353 states have internal predecessors, (551), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2023-11-19 07:58:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 691 transitions. [2023-11-19 07:58:55,140 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 691 transitions. Word has length 129 [2023-11-19 07:58:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:55,143 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 691 transitions. [2023-11-19 07:58:55,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 07:58:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 691 transitions. [2023-11-19 07:58:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 07:58:55,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:55,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:55,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:55,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:55,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:55,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1616534846, now seen corresponding path program 1 times [2023-11-19 07:58:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178916636] [2023-11-19 07:58:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:58:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:58:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:58:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:58:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:58:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:58:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:58:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:58:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:58:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:58:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:58:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:58:55,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:55,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178916636] [2023-11-19 07:58:55,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178916636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:55,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:55,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:58:55,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322211559] [2023-11-19 07:58:55,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:55,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:58:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:58:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:55,840 INFO L87 Difference]: Start difference. First operand 442 states and 691 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 07:58:58,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:58,619 INFO L93 Difference]: Finished difference Result 978 states and 1551 transitions. [2023-11-19 07:58:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:58:58,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2023-11-19 07:58:58,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:58,627 INFO L225 Difference]: With dead ends: 978 [2023-11-19 07:58:58,627 INFO L226 Difference]: Without dead ends: 559 [2023-11-19 07:58:58,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 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 07:58:58,631 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1249 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:58,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 1334 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 07:58:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-19 07:58:58,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 442. [2023-11-19 07:58:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 349 states have (on average 1.5787965616045845) internal successors, (551), 353 states have internal predecessors, (551), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (72), 65 states have call predecessors, (72), 66 states have call successors, (72) [2023-11-19 07:58:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 690 transitions. [2023-11-19 07:58:58,711 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 690 transitions. Word has length 130 [2023-11-19 07:58:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:58,712 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 690 transitions. [2023-11-19 07:58:58,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 07:58:58,712 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 690 transitions. [2023-11-19 07:58:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 07:58:58,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:58,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:58,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:58:58,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:58,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:58,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1448449861, now seen corresponding path program 1 times [2023-11-19 07:58:58,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:58,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312721156] [2023-11-19 07:58:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:58,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:58:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:58:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:58:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:58:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:58:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:58:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:58:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:58:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:58:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:58:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:58:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:58:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:58:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-19 07:58:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-19 07:58:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-19 07:58:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-19 07:58:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 07:58:59,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:59,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312721156] [2023-11-19 07:58:59,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312721156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:59,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:59,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:58:59,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629085741] [2023-11-19 07:58:59,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:59,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:58:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:59,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:58:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:59,277 INFO L87 Difference]: Start difference. First operand 442 states and 690 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 07:59:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:02,109 INFO L93 Difference]: Finished difference Result 980 states and 1554 transitions. [2023-11-19 07:59:02,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:59:02,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2023-11-19 07:59:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:02,116 INFO L225 Difference]: With dead ends: 980 [2023-11-19 07:59:02,116 INFO L226 Difference]: Without dead ends: 561 [2023-11-19 07:59:02,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:59:02,120 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1245 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:02,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1333 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 07:59:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-19 07:59:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 444. [2023-11-19 07:59:02,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 350 states have (on average 1.5771428571428572) internal successors, (552), 355 states have internal predecessors, (552), 67 states have call successors, (67), 23 states have call predecessors, (67), 26 states have return successors, (74), 65 states have call predecessors, (74), 66 states have call successors, (74) [2023-11-19 07:59:02,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 693 transitions. [2023-11-19 07:59:02,169 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 693 transitions. Word has length 150 [2023-11-19 07:59:02,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:02,169 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 693 transitions. [2023-11-19 07:59:02,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 07:59:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 693 transitions. [2023-11-19 07:59:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-19 07:59:02,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:02,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:02,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:59:02,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:02,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash -850520771, now seen corresponding path program 1 times [2023-11-19 07:59:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444503206] [2023-11-19 07:59:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:59:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:59:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:59:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:59:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:59:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:59:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:59:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:59:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:59:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:59:02,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:02,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444503206] [2023-11-19 07:59:02,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444503206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:02,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:02,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:59:02,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204940420] [2023-11-19 07:59:02,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:02,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:59:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:59:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:59:02,542 INFO L87 Difference]: Start difference. First operand 444 states and 693 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-19 07:59:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:06,571 INFO L93 Difference]: Finished difference Result 978 states and 1549 transitions. [2023-11-19 07:59:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:59:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 132 [2023-11-19 07:59:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:06,578 INFO L225 Difference]: With dead ends: 978 [2023-11-19 07:59:06,579 INFO L226 Difference]: Without dead ends: 561 [2023-11-19 07:59:06,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:59:06,583 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1251 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 3999 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 3999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:06,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1845 Invalid, 4375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 3999 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 07:59:06,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-19 07:59:06,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 444. [2023-11-19 07:59:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 350 states have (on average 1.5771428571428572) internal successors, (552), 355 states have internal predecessors, (552), 67 states have call successors, (67), 23 states have call predecessors, (67), 26 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2023-11-19 07:59:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 692 transitions. [2023-11-19 07:59:06,633 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 692 transitions. Word has length 132 [2023-11-19 07:59:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:06,635 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 692 transitions. [2023-11-19 07:59:06,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-19 07:59:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 692 transitions. [2023-11-19 07:59:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 07:59:06,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:06,640 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:06,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:59:06,640 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:06,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:06,642 INFO L85 PathProgramCache]: Analyzing trace with hash -729304435, now seen corresponding path program 2 times [2023-11-19 07:59:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:06,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815324651] [2023-11-19 07:59:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:06,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:59:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:59:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:59:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:59:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:59:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:59:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 07:59:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:59:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:59:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:59:07,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:07,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815324651] [2023-11-19 07:59:07,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815324651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:07,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:07,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:59:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929919508] [2023-11-19 07:59:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:07,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:59:07,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:07,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:59:07,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:59:07,032 INFO L87 Difference]: Start difference. First operand 444 states and 692 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-19 07:59:11,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:11,093 INFO L93 Difference]: Finished difference Result 980 states and 1555 transitions. [2023-11-19 07:59:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:59:11,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 133 [2023-11-19 07:59:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:11,100 INFO L225 Difference]: With dead ends: 980 [2023-11-19 07:59:11,101 INFO L226 Difference]: Without dead ends: 563 [2023-11-19 07:59:11,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:59:11,107 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1248 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:11,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1844 Invalid, 4386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 4004 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-19 07:59:11,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-19 07:59:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 446. [2023-11-19 07:59:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 351 states have (on average 1.5754985754985755) internal successors, (553), 357 states have internal predecessors, (553), 67 states have call successors, (67), 23 states have call predecessors, (67), 27 states have return successors, (78), 65 states have call predecessors, (78), 66 states have call successors, (78) [2023-11-19 07:59:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 698 transitions. [2023-11-19 07:59:11,204 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 698 transitions. Word has length 133 [2023-11-19 07:59:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:11,204 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 698 transitions. [2023-11-19 07:59:11,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-19 07:59:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 698 transitions. [2023-11-19 07:59:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:59:11,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:11,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:11,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:59:11,210 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:11,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash -868874536, now seen corresponding path program 1 times [2023-11-19 07:59:11,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924541659] [2023-11-19 07:59:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:59:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:59:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:59:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:59:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:59:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:59:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:59:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-19 07:59:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-19 07:59:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:59:11,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:11,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924541659] [2023-11-19 07:59:11,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924541659] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:59:11,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034821555] [2023-11-19 07:59:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:59:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:11,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:59:11,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:59:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:11,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:59:12,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:12,156 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:59:12,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034821555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:12,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:59:12,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-19 07:59:12,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140368935] [2023-11-19 07:59:12,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:12,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:59:12,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:12,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:59:12,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:59:12,163 INFO L87 Difference]: Start difference. First operand 446 states and 698 transitions. Second operand has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-19 07:59:16,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:16,767 INFO L93 Difference]: Finished difference Result 1420 states and 2352 transitions. [2023-11-19 07:59:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:59:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 134 [2023-11-19 07:59:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:16,779 INFO L225 Difference]: With dead ends: 1420 [2023-11-19 07:59:16,779 INFO L226 Difference]: Without dead ends: 1005 [2023-11-19 07:59:16,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:59:16,783 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 2748 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 4545 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2768 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 5275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 4545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:16,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2768 Valid, 2182 Invalid, 5275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [730 Valid, 4545 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-19 07:59:16,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-19 07:59:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 864. [2023-11-19 07:59:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 690 states have (on average 1.6217391304347826) internal successors, (1119), 696 states have internal predecessors, (1119), 146 states have call successors, (146), 23 states have call predecessors, (146), 27 states have return successors, (167), 144 states have call predecessors, (167), 145 states have call successors, (167) [2023-11-19 07:59:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1432 transitions. [2023-11-19 07:59:16,862 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1432 transitions. Word has length 134 [2023-11-19 07:59:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:16,863 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1432 transitions. [2023-11-19 07:59:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-19 07:59:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1432 transitions. [2023-11-19 07:59:16,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-19 07:59:16,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:16,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:16,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:17,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079d8a0c-e41c-4f3b-9961-9cb4ee47708f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:59:17,084 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:17,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash 133839134, now seen corresponding path program 1 times [2023-11-19 07:59:17,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:17,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673248400] [2023-11-19 07:59:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:59:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:59:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:59:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:59:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:59:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:59:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:59:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:59:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-19 07:59:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:59:17,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:17,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673248400] [2023-11-19 07:59:17,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673248400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:17,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:17,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:59:17,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613889789] [2023-11-19 07:59:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:17,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:17,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:17,269 INFO L87 Difference]: Start difference. First operand 864 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:19,564 INFO L93 Difference]: Finished difference Result 2165 states and 3681 transitions. [2023-11-19 07:59:19,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:59:19,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-11-19 07:59:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:19,579 INFO L225 Difference]: With dead ends: 2165 [2023-11-19 07:59:19,579 INFO L226 Difference]: Without dead ends: 1379 [2023-11-19 07:59:19,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:19,584 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1371 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:19,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 992 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:59:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2023-11-19 07:59:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1254. [2023-11-19 07:59:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1001 states have (on average 1.6373626373626373) internal successors, (1639), 1007 states have internal predecessors, (1639), 225 states have call successors, (225), 23 states have call predecessors, (225), 27 states have return successors, (256), 223 states have call predecessors, (256), 224 states have call successors, (256) [2023-11-19 07:59:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 2120 transitions. [2023-11-19 07:59:19,688 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 2120 transitions. Word has length 137 [2023-11-19 07:59:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:19,689 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 2120 transitions. [2023-11-19 07:59:19,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 2120 transitions. [2023-11-19 07:59:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-19 07:59:19,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:19,700 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:19,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:59:19,701 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:19,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:19,701 INFO L85 PathProgramCache]: Analyzing trace with hash -891934828, now seen corresponding path program 1 times [2023-11-19 07:59:19,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932336373] [2023-11-19 07:59:19,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:19,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:59:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:59:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:59:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:59:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:59:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:59:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-19 07:59:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-19 07:59:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-19 07:59:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:59:19,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:19,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932336373] [2023-11-19 07:59:19,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932336373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:19,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:19,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:59:19,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580578492] [2023-11-19 07:59:19,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:19,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:19,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:19,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:19,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:19,909 INFO L87 Difference]: Start difference. First operand 1254 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:22,195 INFO L93 Difference]: Finished difference Result 3139 states and 5390 transitions. [2023-11-19 07:59:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:59:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2023-11-19 07:59:22,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:22,216 INFO L225 Difference]: With dead ends: 3139 [2023-11-19 07:59:22,217 INFO L226 Difference]: Without dead ends: 2016 [2023-11-19 07:59:22,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:22,224 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 1365 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:22,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 990 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:59:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2023-11-19 07:59:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1891. [2023-11-19 07:59:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1519 states have (on average 1.6438446346280449) internal successors, (2497), 1525 states have internal predecessors, (2497), 344 states have call successors, (344), 23 states have call predecessors, (344), 27 states have return successors, (375), 342 states have call predecessors, (375), 343 states have call successors, (375) [2023-11-19 07:59:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 3216 transitions. [2023-11-19 07:59:22,375 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 3216 transitions. Word has length 138 [2023-11-19 07:59:22,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:22,375 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 3216 transitions. [2023-11-19 07:59:22,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 3216 transitions. [2023-11-19 07:59:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 07:59:22,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:22,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:22,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:59:22,393 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:22,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1270157356, now seen corresponding path program 1 times [2023-11-19 07:59:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:22,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742309446] [2023-11-19 07:59:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:22,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:59:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:59:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:59:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:59:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:59:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:59:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:59:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:59:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-19 07:59:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:59:22,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742309446] [2023-11-19 07:59:22,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742309446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:22,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:22,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:59:22,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515016419] [2023-11-19 07:59:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:22,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:22,556 INFO L87 Difference]: Start difference. First operand 1891 states and 3216 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:24,731 INFO L93 Difference]: Finished difference Result 4619 states and 8001 transitions. [2023-11-19 07:59:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:59:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2023-11-19 07:59:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:24,760 INFO L225 Difference]: With dead ends: 4619 [2023-11-19 07:59:24,760 INFO L226 Difference]: Without dead ends: 2994 [2023-11-19 07:59:24,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:24,770 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1367 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:24,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 975 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:59:24,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2023-11-19 07:59:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2869. [2023-11-19 07:59:24,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2335 states have (on average 1.6492505353319058) internal successors, (3851), 2341 states have internal predecessors, (3851), 506 states have call successors, (506), 23 states have call predecessors, (506), 27 states have return successors, (553), 504 states have call predecessors, (553), 505 states have call successors, (553) [2023-11-19 07:59:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 4910 transitions. [2023-11-19 07:59:25,011 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 4910 transitions. Word has length 139 [2023-11-19 07:59:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:25,011 INFO L495 AbstractCegarLoop]: Abstraction has 2869 states and 4910 transitions. [2023-11-19 07:59:25,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:59:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 4910 transitions. [2023-11-19 07:59:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 07:59:25,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:25,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:25,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:59:25,035 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:25,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1584702177, now seen corresponding path program 1 times [2023-11-19 07:59:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:25,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500973017] [2023-11-19 07:59:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:25,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:59:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:59:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:59:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:59:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:59:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:59:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:59:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:59:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:59:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:59:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:59:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:59:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:59:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-19 07:59:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-19 07:59:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-19 07:59:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-19 07:59:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-19 07:59:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 07:59:25,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:25,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500973017] [2023-11-19 07:59:25,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500973017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:25,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:25,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:59:25,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230452149] [2023-11-19 07:59:25,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:25,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:59:25,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:59:25,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:25,211 INFO L87 Difference]: Start difference. First operand 2869 states and 4910 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:59:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:27,424 INFO L93 Difference]: Finished difference Result 6958 states and 12136 transitions. [2023-11-19 07:59:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:59:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2023-11-19 07:59:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:27,459 INFO L225 Difference]: With dead ends: 6958 [2023-11-19 07:59:27,459 INFO L226 Difference]: Without dead ends: 4574 [2023-11-19 07:59:27,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 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 07:59:27,471 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1361 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:27,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 975 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:59:27,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states.