./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl --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 ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:25,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:26,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:22:26,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:26,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:26,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:26,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:26,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:26,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:26,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:26,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:26,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:26,146 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:26,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:26,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:26,149 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:22:26,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:22:26,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:22:26,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:26,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:26,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:26,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:26,152 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:22:26,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:26,153 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:26,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:26,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:26,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:26,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:26,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:26,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:26,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:26,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:22:26,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:22:26,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:26,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:26,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:26,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:26,160 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:26,160 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_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c [2023-11-12 02:22:26,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:26,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:26,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:26,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:26,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:26,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2023-11-12 02:22:29,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:30,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:30,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2023-11-12 02:22:30,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/data/6d513ee71/0f356282108c4e178d44f1681fcdc23e/FLAG4d9d78700 [2023-11-12 02:22:30,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/data/6d513ee71/0f356282108c4e178d44f1681fcdc23e [2023-11-12 02:22:30,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:30,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:30,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:30,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:30,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:30,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:30,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251decd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:30, skipping insertion in model container [2023-11-12 02:22:30,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:30" (1/1) ... [2023-11-12 02:22:30,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:30,710 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_596e371f-c15c-44f3-b94a-06dd623aaf0d/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2023-11-12 02:22:31,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:31,155 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:31,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-12 02:22:31,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [281] [2023-11-12 02:22:31,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [685] [2023-11-12 02:22:31,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [702] [2023-11-12 02:22:31,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [711] [2023-11-12 02:22:31,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1114] [2023-11-12 02:22:31,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1426] [2023-11-12 02:22:31,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1461] [2023-11-12 02:22:31,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2521] [2023-11-12 02:22:31,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2887] [2023-11-12 02:22:31,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2905] [2023-11-12 02:22:31,218 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_596e371f-c15c-44f3-b94a-06dd623aaf0d/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2023-11-12 02:22:31,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:31,366 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:22:31,375 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:31,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31 WrapperNode [2023-11-12 02:22:31,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:31,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:31,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:31,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:31,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,518 INFO L138 Inliner]: procedures = 133, calls = 225, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1131 [2023-11-12 02:22:31,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:31,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:31,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:31,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:31,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:31,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:31,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:31,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:31,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (1/1) ... [2023-11-12 02:22:31,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:31,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:31,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:31,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-12 02:22:31,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-12 02:22:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-12 02:22:31,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-12 02:22:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-12 02:22:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-12 02:22:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-12 02:22:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-12 02:22:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-12 02:22:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-12 02:22:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-12 02:22:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-12 02:22:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-12 02:22:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-12 02:22:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-12 02:22:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-12 02:22:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-12 02:22:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-12 02:22:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-12 02:22:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-12 02:22:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-12 02:22:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-12 02:22:31,735 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-12 02:22:31,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-12 02:22:31,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-12 02:22:31,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:31,736 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-12 02:22:31,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-12 02:22:31,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-12 02:22:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-12 02:22:31,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-12 02:22:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-12 02:22:31,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-12 02:22:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-12 02:22:31,737 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-12 02:22:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-12 02:22:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-12 02:22:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-12 02:22:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-12 02:22:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-12 02:22:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-12 02:22:31,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-12 02:22:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:22:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-12 02:22:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-12 02:22:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-12 02:22:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-12 02:22:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:32,002 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:32,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:33,039 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:33,052 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:33,053 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:22:33,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:33 BoogieIcfgContainer [2023-11-12 02:22:33,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:33,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:33,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:33,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:33,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:22:30" (1/3) ... [2023-11-12 02:22:33,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d5dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:33, skipping insertion in model container [2023-11-12 02:22:33,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:31" (2/3) ... [2023-11-12 02:22:33,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d5dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:33, skipping insertion in model container [2023-11-12 02:22:33,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:33" (3/3) ... [2023-11-12 02:22:33,067 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product27.cil.c [2023-11-12 02:22:33,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:33,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:22:33,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:33,170 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;@632d8b4d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:33,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:22:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-12 02:22:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-12 02:22:33,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:33,204 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] [2023-11-12 02:22:33,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:33,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2122370365, now seen corresponding path program 1 times [2023-11-12 02:22:33,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:33,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115237934] [2023-11-12 02:22:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:22:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:22:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:22:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:22:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:22:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:22:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:22:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:22:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:22:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:22:34,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115237934] [2023-11-12 02:22:34,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115237934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:34,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104287572] [2023-11-12 02:22:34,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:34,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:34,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:34,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:34,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:22:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:34,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:22:34,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:22:34,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:34,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104287572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:34,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-12 02:22:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389789347] [2023-11-12 02:22:34,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:34,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:22:34,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:34,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:22:34,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:34,798 INFO L87 Difference]: Start difference. First operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:34,880 INFO L93 Difference]: Finished difference Result 598 states and 904 transitions. [2023-11-12 02:22:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:22:34,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-11-12 02:22:34,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:34,901 INFO L225 Difference]: With dead ends: 598 [2023-11-12 02:22:34,902 INFO L226 Difference]: Without dead ends: 391 [2023-11-12 02:22:34,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:34,914 INFO L413 NwaCegarLoop]: 607 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, 607 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 [2023-11-12 02:22:34,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-12 02:22:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2023-11-12 02:22:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 310 states have (on average 1.5612903225806452) internal successors, (484), 312 states have internal predecessors, (484), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-12 02:22:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 599 transitions. [2023-11-12 02:22:35,032 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 599 transitions. Word has length 95 [2023-11-12 02:22:35,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:35,035 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 599 transitions. [2023-11-12 02:22:35,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:35,037 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 599 transitions. [2023-11-12 02:22:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-12 02:22:35,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:35,055 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] [2023-11-12 02:22:35,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:22:35,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:35,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:35,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1323788369, now seen corresponding path program 1 times [2023-11-12 02:22:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:35,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554153271] [2023-11-12 02:22:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:35,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:22:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:22:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:22:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:22:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:22:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:22:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-12 02:22:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-12 02:22:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:22:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:35,759 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:22:35,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:35,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554153271] [2023-11-12 02:22:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554153271] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:35,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674674075] [2023-11-12 02:22:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:35,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:35,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:35,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:35,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:22:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:22:36,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:22:36,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674674075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:36,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:36,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-12 02:22:36,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230155317] [2023-11-12 02:22:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:36,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:36,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:36,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:36,163 INFO L87 Difference]: Start difference. First operand 391 states and 599 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:36,231 INFO L93 Difference]: Finished difference Result 588 states and 882 transitions. [2023-11-12 02:22:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:36,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-11-12 02:22:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:36,244 INFO L225 Difference]: With dead ends: 588 [2023-11-12 02:22:36,244 INFO L226 Difference]: Without dead ends: 394 [2023-11-12 02:22:36,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:36,250 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 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 [2023-11-12 02:22:36,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-11-12 02:22:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2023-11-12 02:22:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 312 states have (on average 1.5576923076923077) internal successors, (486), 314 states have internal predecessors, (486), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-12 02:22:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2023-11-12 02:22:36,310 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 96 [2023-11-12 02:22:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:36,312 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2023-11-12 02:22:36,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2023-11-12 02:22:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:22:36,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:36,319 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] [2023-11-12 02:22:36,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 02:22:36,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:36,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:36,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1143625850, now seen corresponding path program 1 times [2023-11-12 02:22:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:36,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797710563] [2023-11-12 02:22:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:22:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:22:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:22:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-12 02:22:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:22:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:22:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:22:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:22:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:22:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:22:36,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:36,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797710563] [2023-11-12 02:22:36,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797710563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:36,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340210771] [2023-11-12 02:22:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:36,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:36,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:36,890 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:36,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:22:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:22:37,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:22:37,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:37,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340210771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:37,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:37,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-12 02:22:37,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774790620] [2023-11-12 02:22:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:37,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:37,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:37,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:37,279 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:37,320 INFO L93 Difference]: Finished difference Result 839 states and 1302 transitions. [2023-11-12 02:22:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2023-11-12 02:22:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:37,326 INFO L225 Difference]: With dead ends: 839 [2023-11-12 02:22:37,326 INFO L226 Difference]: Without dead ends: 473 [2023-11-12 02:22:37,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:37,329 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 142 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1159 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 [2023-11-12 02:22:37,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1159 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-12 02:22:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 465. [2023-11-12 02:22:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.5756756756756756) internal successors, (583), 372 states have internal predecessors, (583), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-12 02:22:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 726 transitions. [2023-11-12 02:22:37,361 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 726 transitions. Word has length 105 [2023-11-12 02:22:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:37,362 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 726 transitions. [2023-11-12 02:22:37,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:22:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 726 transitions. [2023-11-12 02:22:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-12 02:22:37,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:37,366 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] [2023-11-12 02:22:37,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-12 02:22:37,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:37,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:37,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1933195202, now seen corresponding path program 1 times [2023-11-12 02:22:37,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103781054] [2023-11-12 02:22:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:22:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:22:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:22:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-12 02:22:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:22:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:22:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-12 02:22:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:22:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-12 02:22:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:22:37,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:37,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103781054] [2023-11-12 02:22:37,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103781054] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:37,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270301741] [2023-11-12 02:22:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:37,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:37,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:37,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:37,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:22:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:38,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:22:38,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:22:38,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:38,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270301741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:38,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:38,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-12 02:22:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96809273] [2023-11-12 02:22:38,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:38,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:38,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:38,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:38,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:38,299 INFO L87 Difference]: Start difference. First operand 465 states and 726 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:38,416 INFO L93 Difference]: Finished difference Result 921 states and 1442 transitions. [2023-11-12 02:22:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:38,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2023-11-12 02:22:38,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:38,422 INFO L225 Difference]: With dead ends: 921 [2023-11-12 02:22:38,422 INFO L226 Difference]: Without dead ends: 467 [2023-11-12 02:22:38,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:22:38,426 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 8 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2349 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 [2023-11-12 02:22:38,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2349 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-12 02:22:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-11-12 02:22:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.5741239892183287) internal successors, (584), 374 states have internal predecessors, (584), 72 states have call successors, (72), 22 states have call predecessors, (72), 23 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2023-11-12 02:22:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 729 transitions. [2023-11-12 02:22:38,460 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 729 transitions. Word has length 106 [2023-11-12 02:22:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:38,460 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 729 transitions. [2023-11-12 02:22:38,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 729 transitions. [2023-11-12 02:22:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 02:22:38,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:38,465 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] [2023-11-12 02:22:38,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:38,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:38,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:38,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:38,680 INFO L85 PathProgramCache]: Analyzing trace with hash -271828072, now seen corresponding path program 1 times [2023-11-12 02:22:38,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:38,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524999942] [2023-11-12 02:22:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:38,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:22:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-12 02:22:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:22:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:22:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-12 02:22:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:22:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:22:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:22:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:22:39,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524999942] [2023-11-12 02:22:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524999942] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638203642] [2023-11-12 02:22:39,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:39,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:39,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:39,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:39,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:22:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:39,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:22:39,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:22:39,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638203642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:39,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-12 02:22:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265727012] [2023-11-12 02:22:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:39,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:39,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:39,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:22:39,530 INFO L87 Difference]: Start difference. First operand 467 states and 729 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:39,632 INFO L93 Difference]: Finished difference Result 923 states and 1447 transitions. [2023-11-12 02:22:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2023-11-12 02:22:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:39,638 INFO L225 Difference]: With dead ends: 923 [2023-11-12 02:22:39,638 INFO L226 Difference]: Without dead ends: 469 [2023-11-12 02:22:39,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:22:39,641 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 8 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2335 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 [2023-11-12 02:22:39,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-12 02:22:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2023-11-12 02:22:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2023-11-12 02:22:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 735 transitions. [2023-11-12 02:22:39,671 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 735 transitions. Word has length 107 [2023-11-12 02:22:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:39,671 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 735 transitions. [2023-11-12 02:22:39,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 735 transitions. [2023-11-12 02:22:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:22:39,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:39,675 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] [2023-11-12 02:22:39,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:22:39,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:39,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:39,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1100190600, now seen corresponding path program 1 times [2023-11-12 02:22:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003457957] [2023-11-12 02:22:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:22:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:22:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:22:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:22:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:22:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:22:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:22:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-12 02:22:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:22:40,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:40,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003457957] [2023-11-12 02:22:40,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003457957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:40,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:40,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:22:40,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859720267] [2023-11-12 02:22:40,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:40,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:22:40,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:22:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:40,192 INFO L87 Difference]: Start difference. First operand 469 states and 735 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:43,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:43,542 INFO L93 Difference]: Finished difference Result 1119 states and 1783 transitions. [2023-11-12 02:22:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:22:43,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2023-11-12 02:22:43,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:43,552 INFO L225 Difference]: With dead ends: 1119 [2023-11-12 02:22:43,552 INFO L226 Difference]: Without dead ends: 673 [2023-11-12 02:22:43,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:22:43,557 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1383 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:43,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1397 Invalid, 3401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [466 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-12 02:22:43,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-11-12 02:22:43,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 469. [2023-11-12 02:22:43,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2023-11-12 02:22:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 734 transitions. [2023-11-12 02:22:43,632 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 734 transitions. Word has length 108 [2023-11-12 02:22:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:43,633 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 734 transitions. [2023-11-12 02:22:43,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 734 transitions. [2023-11-12 02:22:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 02:22:43,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:43,639 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] [2023-11-12 02:22:43,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:22:43,640 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:43,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash 690974068, now seen corresponding path program 2 times [2023-11-12 02:22:43,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559049564] [2023-11-12 02:22:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:22:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:22:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:22:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:22:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:22:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-12 02:22:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-12 02:22:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:22:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:22:43,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:43,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559049564] [2023-11-12 02:22:43,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559049564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:43,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:43,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:22:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846027007] [2023-11-12 02:22:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:43,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:22:43,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:43,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:22:43,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:43,930 INFO L87 Difference]: Start difference. First operand 469 states and 734 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:47,219 INFO L93 Difference]: Finished difference Result 1121 states and 1786 transitions. [2023-11-12 02:22:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:22:47,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2023-11-12 02:22:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:47,229 INFO L225 Difference]: With dead ends: 1121 [2023-11-12 02:22:47,229 INFO L226 Difference]: Without dead ends: 675 [2023-11-12 02:22:47,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:22:47,233 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1361 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 3468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:47,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1398 Invalid, 3468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [449 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-12 02:22:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-11-12 02:22:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2023-11-12 02:22:47,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2023-11-12 02:22:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2023-11-12 02:22:47,286 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 109 [2023-11-12 02:22:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:47,287 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2023-11-12 02:22:47,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:22:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2023-11-12 02:22:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-12 02:22:47,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:47,290 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] [2023-11-12 02:22:47,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:22:47,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:47,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1694406253, now seen corresponding path program 1 times [2023-11-12 02:22:47,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:47,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390205694] [2023-11-12 02:22:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:22:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:22:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:22:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:22:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-12 02:22:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:22:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-12 02:22:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-12 02:22:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:22:47,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:47,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390205694] [2023-11-12 02:22:47,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390205694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:47,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:47,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:22:47,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870088937] [2023-11-12 02:22:47,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:47,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:22:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:47,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:22:47,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:47,693 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:22:51,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:51,972 INFO L93 Difference]: Finished difference Result 1119 states and 1781 transitions. [2023-11-12 02:22:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:22:51,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2023-11-12 02:22:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:51,979 INFO L225 Difference]: With dead ends: 1119 [2023-11-12 02:22:51,980 INFO L226 Difference]: Without dead ends: 675 [2023-11-12 02:22:51,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:22:51,984 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1377 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 4991 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 5430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 4991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:51,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1932 Invalid, 5430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [439 Valid, 4991 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 02:22:51,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-11-12 02:22:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2023-11-12 02:22:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2023-11-12 02:22:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2023-11-12 02:22:52,030 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 110 [2023-11-12 02:22:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:52,030 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2023-11-12 02:22:52,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:22:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2023-11-12 02:22:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 02:22:52,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:52,034 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] [2023-11-12 02:22:52,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:22:52,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:52,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:52,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2103406473, now seen corresponding path program 2 times [2023-11-12 02:22:52,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:52,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741661936] [2023-11-12 02:22:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:22:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:22:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:22:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-12 02:22:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-12 02:22:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:22:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:22:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:22:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:22:52,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:52,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741661936] [2023-11-12 02:22:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741661936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:52,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:52,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:22:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446163905] [2023-11-12 02:22:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:52,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:22:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:22:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:52,350 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:22:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:56,321 INFO L93 Difference]: Finished difference Result 1121 states and 1787 transitions. [2023-11-12 02:22:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:22:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2023-11-12 02:22:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:56,333 INFO L225 Difference]: With dead ends: 1121 [2023-11-12 02:22:56,333 INFO L226 Difference]: Without dead ends: 677 [2023-11-12 02:22:56,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:22:56,338 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1370 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 4945 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:56,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 1931 Invalid, 5399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [454 Valid, 4945 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-12 02:22:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-11-12 02:22:56,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 473. [2023-11-12 02:22:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 374 states have (on average 1.5695187165775402) internal successors, (587), 380 states have internal predecessors, (587), 72 states have call successors, (72), 22 states have call predecessors, (72), 26 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2023-11-12 02:22:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 742 transitions. [2023-11-12 02:22:56,387 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 742 transitions. Word has length 111 [2023-11-12 02:22:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:56,389 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 742 transitions. [2023-11-12 02:22:56,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:22:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 742 transitions. [2023-11-12 02:22:56,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-12 02:22:56,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:56,393 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] [2023-11-12 02:22:56,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:22:56,394 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:56,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1660144658, now seen corresponding path program 1 times [2023-11-12 02:22:56,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:56,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381584603] [2023-11-12 02:22:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:56,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:22:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:22:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:22:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:22:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:22:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:22:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:22:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:22:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:22:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:22:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-12 02:22:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:22:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-12 02:22:56,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:56,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381584603] [2023-11-12 02:22:56,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381584603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:56,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784490584] [2023-11-12 02:22:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:56,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:56,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:56,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:22:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:57,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:22:57,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:22:57,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:22:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784490584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:57,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-12 02:22:57,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450122113] [2023-11-12 02:22:57,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:57,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-12 02:22:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:57,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-12 02:22:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:22:57,194 INFO L87 Difference]: Start difference. First operand 473 states and 742 transitions. Second operand has 15 states, 14 states have (on average 8.928571428571429) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-12 02:23:01,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:01,923 INFO L93 Difference]: Finished difference Result 1586 states and 2624 transitions. [2023-11-12 02:23:01,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:23:01,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.928571428571429) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 112 [2023-11-12 02:23:01,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:01,934 INFO L225 Difference]: With dead ends: 1586 [2023-11-12 02:23:01,934 INFO L226 Difference]: Without dead ends: 1144 [2023-11-12 02:23:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-12 02:23:01,938 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 2617 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 6008 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 6849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 6008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:01,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 2402 Invalid, 6849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [841 Valid, 6008 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 02:23:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2023-11-12 02:23:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 916. [2023-11-12 02:23:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 738 states have (on average 1.6165311653116532) internal successors, (1193), 744 states have internal predecessors, (1193), 151 states have call successors, (151), 22 states have call predecessors, (151), 26 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2023-11-12 02:23:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1516 transitions. [2023-11-12 02:23:02,013 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1516 transitions. Word has length 112 [2023-11-12 02:23:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:02,014 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1516 transitions. [2023-11-12 02:23:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.928571428571429) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-12 02:23:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1516 transitions. [2023-11-12 02:23:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 02:23:02,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:02,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:02,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:23:02,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596e371f-c15c-44f3-b94a-06dd623aaf0d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:02,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:02,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1184291663, now seen corresponding path program 1 times [2023-11-12 02:23:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:02,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223336080] [2023-11-12 02:23:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:23:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:23:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:23:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:23:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:23:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-12 02:23:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-12 02:23:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:23:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-12 02:23:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:23:02,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:02,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223336080] [2023-11-12 02:23:02,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223336080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:02,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:02,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:23:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638330742] [2023-11-12 02:23:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:02,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:23:02,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:23:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:02,358 INFO L87 Difference]: Start difference. First operand 916 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:04,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:04,741 INFO L93 Difference]: Finished difference Result 2381 states and 4033 transitions. [2023-11-12 02:23:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:23:04,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-11-12 02:23:04,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:04,755 INFO L225 Difference]: With dead ends: 2381 [2023-11-12 02:23:04,755 INFO L226 Difference]: Without dead ends: 1543 [2023-11-12 02:23:04,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:23:04,760 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1489 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:04,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1061 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:23:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2023-11-12 02:23:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1331. [2023-11-12 02:23:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1074 states have (on average 1.632216014897579) internal successors, (1753), 1080 states have internal predecessors, (1753), 230 states have call successors, (230), 22 states have call predecessors, (230), 26 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2023-11-12 02:23:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2244 transitions. [2023-11-12 02:23:04,852 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2244 transitions. Word has length 115 [2023-11-12 02:23:04,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:04,853 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 2244 transitions. [2023-11-12 02:23:04,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2244 transitions. [2023-11-12 02:23:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 02:23:04,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:04,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:04,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:23:04,861 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:04,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -152913686, now seen corresponding path program 1 times [2023-11-12 02:23:04,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:04,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725009355] [2023-11-12 02:23:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:23:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:23:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:23:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-12 02:23:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:23:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:23:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-12 02:23:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-12 02:23:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-12 02:23:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:23:04,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:04,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725009355] [2023-11-12 02:23:04,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725009355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:04,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:04,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:23:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876754029] [2023-11-12 02:23:04,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:04,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:23:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:23:04,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:04,998 INFO L87 Difference]: Start difference. First operand 1331 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:07,293 INFO L93 Difference]: Finished difference Result 3420 states and 5846 transitions. [2023-11-12 02:23:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:23:07,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-11-12 02:23:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:07,321 INFO L225 Difference]: With dead ends: 3420 [2023-11-12 02:23:07,322 INFO L226 Difference]: Without dead ends: 2220 [2023-11-12 02:23:07,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:23:07,330 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1490 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:07,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1031 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 02:23:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2023-11-12 02:23:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2008. [2023-11-12 02:23:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1632 states have (on average 1.639093137254902) internal successors, (2675), 1638 states have internal predecessors, (2675), 349 states have call successors, (349), 22 states have call predecessors, (349), 26 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2023-11-12 02:23:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3404 transitions. [2023-11-12 02:23:07,484 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3404 transitions. Word has length 116 [2023-11-12 02:23:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:07,485 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 3404 transitions. [2023-11-12 02:23:07,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3404 transitions. [2023-11-12 02:23:07,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 02:23:07,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:07,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:07,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:23:07,497 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:07,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1911372419, now seen corresponding path program 1 times [2023-11-12 02:23:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:07,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445052840] [2023-11-12 02:23:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:23:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:23:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:23:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:23:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-12 02:23:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-12 02:23:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:23:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:23:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-12 02:23:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:23:07,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:07,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445052840] [2023-11-12 02:23:07,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445052840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:07,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:07,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:23:07,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714984263] [2023-11-12 02:23:07,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:07,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:23:07,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:23:07,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:07,643 INFO L87 Difference]: Start difference. First operand 2008 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:10,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:10,037 INFO L93 Difference]: Finished difference Result 5005 states and 8625 transitions. [2023-11-12 02:23:10,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:23:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-11-12 02:23:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:10,064 INFO L225 Difference]: With dead ends: 5005 [2023-11-12 02:23:10,065 INFO L226 Difference]: Without dead ends: 3263 [2023-11-12 02:23:10,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:23:10,074 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1498 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:10,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1023 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:23:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2023-11-12 02:23:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3051. [2023-11-12 02:23:10,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2513 states have (on average 1.6446478312773578) internal successors, (4133), 2519 states have internal predecessors, (4133), 511 states have call successors, (511), 22 states have call predecessors, (511), 26 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2023-11-12 02:23:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 5202 transitions. [2023-11-12 02:23:10,326 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 5202 transitions. Word has length 117 [2023-11-12 02:23:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:10,327 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 5202 transitions. [2023-11-12 02:23:10,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 5202 transitions. [2023-11-12 02:23:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-12 02:23:10,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:10,340 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:10,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:23:10,341 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:10,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash -672441813, now seen corresponding path program 1 times [2023-11-12 02:23:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:10,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771457632] [2023-11-12 02:23:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:23:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:23:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:23:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:23:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:23:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:23:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-12 02:23:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:23:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:23:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:23:10,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:10,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771457632] [2023-11-12 02:23:10,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771457632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:10,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:10,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:23:10,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199035613] [2023-11-12 02:23:10,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:23:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:23:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:10,467 INFO L87 Difference]: Start difference. First operand 3051 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:12,891 INFO L93 Difference]: Finished difference Result 7519 states and 13040 transitions. [2023-11-12 02:23:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:23:12,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-11-12 02:23:12,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:12,928 INFO L225 Difference]: With dead ends: 7519 [2023-11-12 02:23:12,929 INFO L226 Difference]: Without dead ends: 4953 [2023-11-12 02:23:12,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:23:12,938 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1495 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:12,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1024 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 02:23:12,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2023-11-12 02:23:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4741. [2023-11-12 02:23:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 3958 states have (on average 1.6485598787266296) internal successors, (6525), 3964 states have internal predecessors, (6525), 756 states have call successors, (756), 22 states have call predecessors, (756), 26 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2023-11-12 02:23:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 8110 transitions. [2023-11-12 02:23:13,222 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 8110 transitions. Word has length 118 [2023-11-12 02:23:13,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:13,223 INFO L495 AbstractCegarLoop]: Abstraction has 4741 states and 8110 transitions. [2023-11-12 02:23:13,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 02:23:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 8110 transitions. [2023-11-12 02:23:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 02:23:13,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:13,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:13,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:23:13,245 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:13,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash -343159207, now seen corresponding path program 1 times [2023-11-12 02:23:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:13,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15849282] [2023-11-12 02:23:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:13,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:23:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:23:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:23:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:23:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:23:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:23:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:23:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:23:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:23:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:23:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-12 02:23:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:23:13,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15849282] [2023-11-12 02:23:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15849282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:13,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:13,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:23:13,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396525943] [2023-11-12 02:23:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:13,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:23:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:23:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:13,376 INFO L87 Difference]: Start difference. First operand 4741 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)