./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya --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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:39:01,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:39:01,197 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 23:39:01,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:39:01,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:39:01,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:39:01,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:39:01,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:39:01,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:39:01,224 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:39:01,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:39:01,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:39:01,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:39:01,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:39:01,239 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:39:01,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:39:01,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:39:01,241 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:39:01,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:39:01,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:39:01,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:39:01,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:39:01,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:39:01,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:39:01,244 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:39:01,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:39:01,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:39:01,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:39:01,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:39:01,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:39:01,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:39:01,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:39:01,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:39:01,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:39:01,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:39:01,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:39:01,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:39:01,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:39:01,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:39:01,249 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:39:01,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:39:01,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:39:01,249 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_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2023-11-28 23:39:01,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:39:01,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:39:01,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:39:01,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:39:01,496 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:39:01,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2023-11-28 23:39:04,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:39:04,531 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:39:04,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2023-11-28 23:39:04,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/data/bb24bbbc7/078bfa22b7974b6b913d838dda1db417/FLAG06a26b86d [2023-11-28 23:39:04,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/data/bb24bbbc7/078bfa22b7974b6b913d838dda1db417 [2023-11-28 23:39:04,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:39:04,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:39:04,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:39:04,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:39:04,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:39:04,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:04" (1/1) ... [2023-11-28 23:39:04,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ebed99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:04, skipping insertion in model container [2023-11-28 23:39:04,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:39:04" (1/1) ... [2023-11-28 23:39:04,640 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:39:04,946 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_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2023-11-28 23:39:05,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:39:05,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:39:05,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-28 23:39:05,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [380] [2023-11-28 23:39:05,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [415] [2023-11-28 23:39:05,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [436] [2023-11-28 23:39:05,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [802] [2023-11-28 23:39:05,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [811] [2023-11-28 23:39:05,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1880] [2023-11-28 23:39:05,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1897] [2023-11-28 23:39:05,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2309] [2023-11-28 23:39:05,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2548] [2023-11-28 23:39:05,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2767] [2023-11-28 23:39:05,177 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_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2023-11-28 23:39:05,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:39:05,246 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:39:05,253 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:39:05,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05 WrapperNode [2023-11-28 23:39:05,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:39:05,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:39:05,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:39:05,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:39:05,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,332 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 840 [2023-11-28 23:39:05,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:39:05,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:39:05,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:39:05,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:39:05,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,378 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-11-28 23:39:05,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:39:05,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:39:05,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:39:05,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:39:05,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (1/1) ... [2023-11-28 23:39:05,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:39:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:05,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:39:05,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:39:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-28 23:39:05,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-28 23:39:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-28 23:39:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-28 23:39:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-28 23:39:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-28 23:39:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-28 23:39:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-28 23:39:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-28 23:39:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-28 23:39:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-28 23:39:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-28 23:39:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-28 23:39:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-28 23:39:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-28 23:39:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-28 23:39:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-28 23:39:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-28 23:39:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-28 23:39:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-28 23:39:05,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-28 23:39:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:39:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-28 23:39:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-28 23:39:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-28 23:39:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-28 23:39:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-28 23:39:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-28 23:39:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-28 23:39:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-28 23:39:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-28 23:39:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-28 23:39:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-28 23:39:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-28 23:39:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-28 23:39:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-28 23:39:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-28 23:39:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-28 23:39:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-28 23:39:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:39:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:39:05,719 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:39:05,722 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:39:06,367 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:39:06,437 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:39:06,437 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:39:06,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:06 BoogieIcfgContainer [2023-11-28 23:39:06,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:39:06,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:39:06,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:39:06,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:39:06,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:39:04" (1/3) ... [2023-11-28 23:39:06,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a37b96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:06, skipping insertion in model container [2023-11-28 23:39:06,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:39:05" (2/3) ... [2023-11-28 23:39:06,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a37b96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:39:06, skipping insertion in model container [2023-11-28 23:39:06,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:39:06" (3/3) ... [2023-11-28 23:39:06,446 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2023-11-28 23:39:06,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:39:06,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:39:06,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:39:06,532 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;@33b0eed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:39:06,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:39:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 285 states, 218 states have (on average 1.6376146788990826) internal successors, (357), 221 states have internal predecessors, (357), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-28 23:39:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-28 23:39:06,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:06,557 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] [2023-11-28 23:39:06,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:06,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1521159005, now seen corresponding path program 1 times [2023-11-28 23:39:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:06,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713145107] [2023-11-28 23:39:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:39:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:39:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:39:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 23:39:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 23:39:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:39:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:39:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 23:39:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:39:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:39:07,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713145107] [2023-11-28 23:39:07,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713145107] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917859930] [2023-11-28 23:39:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:07,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:07,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:07,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:07,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:39:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:07,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:39:07,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 23:39:07,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:07,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917859930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:07,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:07,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-28 23:39:07,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392257218] [2023-11-28 23:39:07,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:07,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:39:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:07,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:39:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:39:07,589 INFO L87 Difference]: Start difference. First operand has 285 states, 218 states have (on average 1.6376146788990826) internal successors, (357), 221 states have internal predecessors, (357), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-11-28 23:39:07,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:07,669 INFO L93 Difference]: Finished difference Result 386 states and 597 transitions. [2023-11-28 23:39:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:39:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 87 [2023-11-28 23:39:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:07,686 INFO L225 Difference]: With dead ends: 386 [2023-11-28 23:39:07,687 INFO L226 Difference]: Without dead ends: 282 [2023-11-28 23:39:07,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:39:07,695 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:07,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:39:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-28 23:39:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2023-11-28 23:39:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 216 states have (on average 1.6203703703703705) internal successors, (350), 218 states have internal predecessors, (350), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-28 23:39:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 441 transitions. [2023-11-28 23:39:07,762 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 441 transitions. Word has length 87 [2023-11-28 23:39:07,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:07,764 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 441 transitions. [2023-11-28 23:39:07,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-11-28 23:39:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 441 transitions. [2023-11-28 23:39:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-28 23:39:07,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:07,771 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] [2023-11-28 23:39:07,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:39:07,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 23:39:07,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:07,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2024154161, now seen corresponding path program 1 times [2023-11-28 23:39:07,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:07,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267467535] [2023-11-28 23:39:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:07,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:39:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:39:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:39:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 23:39:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:39:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:39:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:39:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:39:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:39:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:39:08,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:08,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267467535] [2023-11-28 23:39:08,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267467535] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:08,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216605520] [2023-11-28 23:39:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:08,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:08,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:08,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:39:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:08,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:39:08,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 23:39:08,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:08,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216605520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:08,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:08,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 23:39:08,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116941569] [2023-11-28 23:39:08,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:08,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:39:08,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:08,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:39:08,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:39:08,576 INFO L87 Difference]: Start difference. First operand 282 states and 441 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-28 23:39:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:08,650 INFO L93 Difference]: Finished difference Result 382 states and 581 transitions. [2023-11-28 23:39:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:39:08,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 88 [2023-11-28 23:39:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:08,654 INFO L225 Difference]: With dead ends: 382 [2023-11-28 23:39:08,654 INFO L226 Difference]: Without dead ends: 284 [2023-11-28 23:39:08,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:39:08,658 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:08,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 855 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:39:08,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-28 23:39:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2023-11-28 23:39:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 218 states have (on average 1.614678899082569) internal successors, (352), 220 states have internal predecessors, (352), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-28 23:39:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 443 transitions. [2023-11-28 23:39:08,685 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 443 transitions. Word has length 88 [2023-11-28 23:39:08,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:08,685 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 443 transitions. [2023-11-28 23:39:08,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-28 23:39:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 443 transitions. [2023-11-28 23:39:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-28 23:39:08,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:08,689 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] [2023-11-28 23:39:08,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:39:08,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-28 23:39:08,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:08,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:08,895 INFO L85 PathProgramCache]: Analyzing trace with hash 268846304, now seen corresponding path program 1 times [2023-11-28 23:39:08,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:08,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040106929] [2023-11-28 23:39:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:08,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:39:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:39:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:39:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 23:39:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:39:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 23:39:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:39:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:39:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 23:39:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:39:09,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:09,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040106929] [2023-11-28 23:39:09,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040106929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:09,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422417929] [2023-11-28 23:39:09,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:09,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:09,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:09,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:09,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:39:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:39:09,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 23:39:09,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:09,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422417929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:09,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 23:39:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751323345] [2023-11-28 23:39:09,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:09,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:39:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:39:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:39:09,469 INFO L87 Difference]: Start difference. First operand 284 states and 443 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-28 23:39:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:09,530 INFO L93 Difference]: Finished difference Result 616 states and 978 transitions. [2023-11-28 23:39:09,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:39:09,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2023-11-28 23:39:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:09,535 INFO L225 Difference]: With dead ends: 616 [2023-11-28 23:39:09,535 INFO L226 Difference]: Without dead ends: 354 [2023-11-28 23:39:09,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:39:09,539 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 129 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:09,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 817 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:39:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-28 23:39:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2023-11-28 23:39:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 269 states have (on average 1.6319702602230484) internal successors, (439), 271 states have internal predecessors, (439), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-28 23:39:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 558 transitions. [2023-11-28 23:39:09,565 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 558 transitions. Word has length 95 [2023-11-28 23:39:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:09,565 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 558 transitions. [2023-11-28 23:39:09,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2023-11-28 23:39:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 558 transitions. [2023-11-28 23:39:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 23:39:09,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:09,569 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] [2023-11-28 23:39:09,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:39:09,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-28 23:39:09,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:09,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:09,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1235039678, now seen corresponding path program 1 times [2023-11-28 23:39:09,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:09,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269131693] [2023-11-28 23:39:09,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:09,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:39:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:39:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:39:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-28 23:39:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:39:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:39:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:39:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:39:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 23:39:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:39:10,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:10,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269131693] [2023-11-28 23:39:10,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269131693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:10,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933088845] [2023-11-28 23:39:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:10,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:10,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:10,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:10,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:39:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:39:10,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-28 23:39:10,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:10,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933088845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:10,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:10,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-28 23:39:10,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629371535] [2023-11-28 23:39:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:10,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:39:10,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:39:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:39:10,363 INFO L87 Difference]: Start difference. First operand 349 states and 558 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2023-11-28 23:39:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:10,521 INFO L93 Difference]: Finished difference Result 693 states and 1110 transitions. [2023-11-28 23:39:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:39:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 96 [2023-11-28 23:39:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:10,526 INFO L225 Difference]: With dead ends: 693 [2023-11-28 23:39:10,526 INFO L226 Difference]: Without dead ends: 351 [2023-11-28 23:39:10,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:39:10,529 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 8 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:10,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1665 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:39:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-28 23:39:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-11-28 23:39:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 270 states have (on average 1.6296296296296295) internal successors, (440), 273 states have internal predecessors, (440), 60 states have call successors, (60), 19 states have call predecessors, (60), 20 states have return successors, (61), 58 states have call predecessors, (61), 59 states have call successors, (61) [2023-11-28 23:39:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 561 transitions. [2023-11-28 23:39:10,555 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 561 transitions. Word has length 96 [2023-11-28 23:39:10,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:10,555 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 561 transitions. [2023-11-28 23:39:10,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2023-11-28 23:39:10,556 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 561 transitions. [2023-11-28 23:39:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-28 23:39:10,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:10,560 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] [2023-11-28 23:39:10,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:39:10,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:10,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:10,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -888703380, now seen corresponding path program 1 times [2023-11-28 23:39:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503432475] [2023-11-28 23:39:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:10,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-28 23:39:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:39:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 23:39:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:39:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 23:39:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:39:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:39:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:39:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:39:11,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:11,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503432475] [2023-11-28 23:39:11,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503432475] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:11,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493156799] [2023-11-28 23:39:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:11,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:11,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:11,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:11,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:39:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:39:11,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-28 23:39:11,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:11,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493156799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:11,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:11,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-28 23:39:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728412541] [2023-11-28 23:39:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:11,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:39:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:39:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:39:11,382 INFO L87 Difference]: Start difference. First operand 351 states and 561 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-11-28 23:39:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:11,502 INFO L93 Difference]: Finished difference Result 695 states and 1115 transitions. [2023-11-28 23:39:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:39:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 97 [2023-11-28 23:39:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:11,505 INFO L225 Difference]: With dead ends: 695 [2023-11-28 23:39:11,506 INFO L226 Difference]: Without dead ends: 353 [2023-11-28 23:39:11,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:39:11,508 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 8 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:11,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1651 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:39:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-28 23:39:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-28 23:39:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 271 states have (on average 1.6273062730627306) internal successors, (441), 275 states have internal predecessors, (441), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2023-11-28 23:39:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 567 transitions. [2023-11-28 23:39:11,529 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 567 transitions. Word has length 97 [2023-11-28 23:39:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:11,529 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 567 transitions. [2023-11-28 23:39:11,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-11-28 23:39:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 567 transitions. [2023-11-28 23:39:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-28 23:39:11,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:11,533 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] [2023-11-28 23:39:11,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 23:39:11,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:11,734 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:11,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash -903127638, now seen corresponding path program 1 times [2023-11-28 23:39:11,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:11,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509248354] [2023-11-28 23:39:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:11,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-28 23:39:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:39:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 23:39:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:39:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 23:39:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 23:39:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:39:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:39:11,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:11,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509248354] [2023-11-28 23:39:11,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509248354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:11,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:11,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:39:11,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837059113] [2023-11-28 23:39:11,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:11,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:39:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:39:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:39:11,969 INFO L87 Difference]: Start difference. First operand 353 states and 567 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-11-28 23:39:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:13,672 INFO L93 Difference]: Finished difference Result 755 states and 1242 transitions. [2023-11-28 23:39:13,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:39:13,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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 98 [2023-11-28 23:39:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:13,677 INFO L225 Difference]: With dead ends: 755 [2023-11-28 23:39:13,677 INFO L226 Difference]: Without dead ends: 421 [2023-11-28 23:39:13,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-28 23:39:13,680 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 846 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:13,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1194 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 23:39:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-28 23:39:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 353. [2023-11-28 23:39:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 271 states have (on average 1.6273062730627306) internal successors, (441), 275 states have internal predecessors, (441), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (65), 58 states have call predecessors, (65), 59 states have call successors, (65) [2023-11-28 23:39:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 566 transitions. [2023-11-28 23:39:13,741 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 566 transitions. Word has length 98 [2023-11-28 23:39:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:13,741 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 566 transitions. [2023-11-28 23:39:13,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-11-28 23:39:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 566 transitions. [2023-11-28 23:39:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 23:39:13,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:13,744 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] [2023-11-28 23:39:13,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:39:13,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:13,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1632170122, now seen corresponding path program 2 times [2023-11-28 23:39:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869278067] [2023-11-28 23:39:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 23:39:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:39:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:39:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:39:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 23:39:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:39:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:39:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:39:13,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:13,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869278067] [2023-11-28 23:39:13,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869278067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:13,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:13,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:39:13,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627355517] [2023-11-28 23:39:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:13,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:39:13,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:13,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:39:13,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:39:13,920 INFO L87 Difference]: Start difference. First operand 353 states and 566 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-11-28 23:39:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:15,583 INFO L93 Difference]: Finished difference Result 757 states and 1245 transitions. [2023-11-28 23:39:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:39:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 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 99 [2023-11-28 23:39:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:15,587 INFO L225 Difference]: With dead ends: 757 [2023-11-28 23:39:15,587 INFO L226 Difference]: Without dead ends: 423 [2023-11-28 23:39:15,589 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 [2023-11-28 23:39:15,590 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 841 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:15,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1194 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 23:39:15,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-28 23:39:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 355. [2023-11-28 23:39:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 272 states have (on average 1.625) internal successors, (442), 277 states have internal predecessors, (442), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (67), 58 states have call predecessors, (67), 59 states have call successors, (67) [2023-11-28 23:39:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 569 transitions. [2023-11-28 23:39:15,616 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 569 transitions. Word has length 99 [2023-11-28 23:39:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 569 transitions. [2023-11-28 23:39:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-11-28 23:39:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 569 transitions. [2023-11-28 23:39:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-28 23:39:15,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:15,619 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] [2023-11-28 23:39:15,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:39:15,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:15,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1774683397, now seen corresponding path program 1 times [2023-11-28 23:39:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:15,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786976454] [2023-11-28 23:39:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:39:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-28 23:39:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:39:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:39:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 23:39:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 23:39:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:39:15,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:15,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786976454] [2023-11-28 23:39:15,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786976454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:15,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:39:15,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637713994] [2023-11-28 23:39:15,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:15,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:39:15,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:15,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:39:15,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:39:15,823 INFO L87 Difference]: Start difference. First operand 355 states and 569 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-11-28 23:39:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:17,931 INFO L93 Difference]: Finished difference Result 755 states and 1240 transitions. [2023-11-28 23:39:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:39:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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 100 [2023-11-28 23:39:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:17,936 INFO L225 Difference]: With dead ends: 755 [2023-11-28 23:39:17,936 INFO L226 Difference]: Without dead ends: 423 [2023-11-28 23:39:17,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:39:17,939 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 851 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:17,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1652 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 23:39:17,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-28 23:39:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 355. [2023-11-28 23:39:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 272 states have (on average 1.625) internal successors, (442), 277 states have internal predecessors, (442), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2023-11-28 23:39:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 568 transitions. [2023-11-28 23:39:17,961 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 568 transitions. Word has length 100 [2023-11-28 23:39:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:17,962 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 568 transitions. [2023-11-28 23:39:17,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-11-28 23:39:17,962 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 568 transitions. [2023-11-28 23:39:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-28 23:39:17,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:17,964 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] [2023-11-28 23:39:17,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:39:17,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:17,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash -352658073, now seen corresponding path program 2 times [2023-11-28 23:39:17,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:17,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653191255] [2023-11-28 23:39:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:17,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:39:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 23:39:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:39:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:39:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:39:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:39:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:39:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653191255] [2023-11-28 23:39:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653191255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:18,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:18,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:39:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361445212] [2023-11-28 23:39:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:18,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:39:18,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:39:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:39:18,197 INFO L87 Difference]: Start difference. First operand 355 states and 568 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 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) [2023-11-28 23:39:20,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:20,257 INFO L93 Difference]: Finished difference Result 757 states and 1246 transitions. [2023-11-28 23:39:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:39:20,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 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 101 [2023-11-28 23:39:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:20,260 INFO L225 Difference]: With dead ends: 757 [2023-11-28 23:39:20,260 INFO L226 Difference]: Without dead ends: 425 [2023-11-28 23:39:20,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:39:20,262 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 847 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:20,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1652 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 23:39:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-28 23:39:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 357. [2023-11-28 23:39:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 273 states have (on average 1.6227106227106227) internal successors, (443), 279 states have internal predecessors, (443), 60 states have call successors, (60), 19 states have call predecessors, (60), 23 states have return successors, (71), 58 states have call predecessors, (71), 59 states have call successors, (71) [2023-11-28 23:39:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 574 transitions. [2023-11-28 23:39:20,285 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 574 transitions. Word has length 101 [2023-11-28 23:39:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:20,286 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 574 transitions. [2023-11-28 23:39:20,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 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) [2023-11-28 23:39:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 574 transitions. [2023-11-28 23:39:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 23:39:20,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:20,288 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] [2023-11-28 23:39:20,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:39:20,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:20,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:20,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1969930080, now seen corresponding path program 1 times [2023-11-28 23:39:20,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:20,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169233811] [2023-11-28 23:39:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:39:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:39:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:39:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:39:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:39:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:39:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-28 23:39:20,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169233811] [2023-11-28 23:39:20,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169233811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805515832] [2023-11-28 23:39:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:20,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:20,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:20,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:20,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:39:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:20,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:39:20,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:20,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:39:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:20,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805515832] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:39:20,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:39:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-28 23:39:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514832155] [2023-11-28 23:39:20,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:39:20,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:39:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:20,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:39:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:39:20,801 INFO L87 Difference]: Start difference. First operand 357 states and 574 transitions. Second operand has 15 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 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) [2023-11-28 23:39:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:23,102 INFO L93 Difference]: Finished difference Result 1176 states and 2022 transitions. [2023-11-28 23:39:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 23:39:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 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 102 [2023-11-28 23:39:23,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:23,110 INFO L225 Difference]: With dead ends: 1176 [2023-11-28 23:39:23,110 INFO L226 Difference]: Without dead ends: 845 [2023-11-28 23:39:23,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-28 23:39:23,113 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 2147 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 4057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:23,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 1883 Invalid, 4057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-28 23:39:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-28 23:39:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 762. [2023-11-28 23:39:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 599 states have (on average 1.662771285475793) internal successors, (996), 605 states have internal predecessors, (996), 139 states have call successors, (139), 19 states have call predecessors, (139), 23 states have return successors, (160), 137 states have call predecessors, (160), 138 states have call successors, (160) [2023-11-28 23:39:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1295 transitions. [2023-11-28 23:39:23,172 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1295 transitions. Word has length 102 [2023-11-28 23:39:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:23,172 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 1295 transitions. [2023-11-28 23:39:23,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 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) [2023-11-28 23:39:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1295 transitions. [2023-11-28 23:39:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-28 23:39:23,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:23,178 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] [2023-11-28 23:39:23,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-28 23:39:23,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 23:39:23,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:23,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash 50614721, now seen corresponding path program 1 times [2023-11-28 23:39:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:23,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280219445] [2023-11-28 23:39:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:23,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 23:39:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:39:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:39:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 23:39:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:39:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 23:39:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:23,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:23,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280219445] [2023-11-28 23:39:23,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280219445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:23,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:23,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:23,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396647551] [2023-11-28 23:39:23,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:23,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:23,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:23,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:23,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:23,501 INFO L87 Difference]: Start difference. First operand 762 states and 1295 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-11-28 23:39:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:24,655 INFO L93 Difference]: Finished difference Result 1911 states and 3341 transitions. [2023-11-28 23:39:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 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 106 [2023-11-28 23:39:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:24,663 INFO L225 Difference]: With dead ends: 1911 [2023-11-28 23:39:24,663 INFO L226 Difference]: Without dead ends: 1217 [2023-11-28 23:39:24,666 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 [2023-11-28 23:39:24,666 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 961 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:24,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 889 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:39:24,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-11-28 23:39:24,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1144. [2023-11-28 23:39:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 902 states have (on average 1.671840354767184) internal successors, (1508), 908 states have internal predecessors, (1508), 218 states have call successors, (218), 19 states have call predecessors, (218), 23 states have return successors, (249), 216 states have call predecessors, (249), 217 states have call successors, (249) [2023-11-28 23:39:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1975 transitions. [2023-11-28 23:39:24,721 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1975 transitions. Word has length 106 [2023-11-28 23:39:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:24,735 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1975 transitions. [2023-11-28 23:39:24,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-11-28 23:39:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1975 transitions. [2023-11-28 23:39:24,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-28 23:39:24,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:24,741 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] [2023-11-28 23:39:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:39:24,741 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:24,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1642798208, now seen corresponding path program 1 times [2023-11-28 23:39:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:24,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931926110] [2023-11-28 23:39:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:24,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:39:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:39:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:39:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:39:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:39:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:39:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:24,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:24,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931926110] [2023-11-28 23:39:24,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931926110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:24,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:24,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:24,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987801441] [2023-11-28 23:39:24,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:24,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:24,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:24,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:24,836 INFO L87 Difference]: Start difference. First operand 1144 states and 1975 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 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) [2023-11-28 23:39:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:25,960 INFO L93 Difference]: Finished difference Result 2862 states and 5027 transitions. [2023-11-28 23:39:25,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:25,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 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 107 [2023-11-28 23:39:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:25,973 INFO L225 Difference]: With dead ends: 2862 [2023-11-28 23:39:25,973 INFO L226 Difference]: Without dead ends: 1836 [2023-11-28 23:39:25,976 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 [2023-11-28 23:39:25,977 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 960 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:25,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 874 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:39:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-11-28 23:39:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1763. [2023-11-28 23:39:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1402 states have (on average 1.6747503566333808) internal successors, (2348), 1408 states have internal predecessors, (2348), 337 states have call successors, (337), 19 states have call predecessors, (337), 23 states have return successors, (368), 335 states have call predecessors, (368), 336 states have call successors, (368) [2023-11-28 23:39:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 3053 transitions. [2023-11-28 23:39:26,101 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 3053 transitions. Word has length 107 [2023-11-28 23:39:26,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:26,101 INFO L495 AbstractCegarLoop]: Abstraction has 1763 states and 3053 transitions. [2023-11-28 23:39:26,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 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) [2023-11-28 23:39:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 3053 transitions. [2023-11-28 23:39:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-28 23:39:26,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:26,113 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] [2023-11-28 23:39:26,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:39:26,113 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:26,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:26,114 INFO L85 PathProgramCache]: Analyzing trace with hash 494900627, now seen corresponding path program 1 times [2023-11-28 23:39:26,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:26,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079902772] [2023-11-28 23:39:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 23:39:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:39:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:39:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:39:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:39:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 23:39:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079902772] [2023-11-28 23:39:26,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079902772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:26,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264468376] [2023-11-28 23:39:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:26,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:26,228 INFO L87 Difference]: Start difference. First operand 1763 states and 3053 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-11-28 23:39:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:27,376 INFO L93 Difference]: Finished difference Result 4302 states and 7598 transitions. [2023-11-28 23:39:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:27,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 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 108 [2023-11-28 23:39:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:27,393 INFO L225 Difference]: With dead ends: 4302 [2023-11-28 23:39:27,393 INFO L226 Difference]: Without dead ends: 2785 [2023-11-28 23:39:27,398 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 [2023-11-28 23:39:27,398 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 959 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:27,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 872 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:39:27,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2023-11-28 23:39:27,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2712. [2023-11-28 23:39:27,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2189 states have (on average 1.6779351301964367) internal successors, (3673), 2195 states have internal predecessors, (3673), 499 states have call successors, (499), 19 states have call predecessors, (499), 23 states have return successors, (546), 497 states have call predecessors, (546), 498 states have call successors, (546) [2023-11-28 23:39:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 4718 transitions. [2023-11-28 23:39:27,556 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 4718 transitions. Word has length 108 [2023-11-28 23:39:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:27,556 INFO L495 AbstractCegarLoop]: Abstraction has 2712 states and 4718 transitions. [2023-11-28 23:39:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-11-28 23:39:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 4718 transitions. [2023-11-28 23:39:27,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 23:39:27,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:27,567 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] [2023-11-28 23:39:27,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:39:27,567 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:27,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:27,567 INFO L85 PathProgramCache]: Analyzing trace with hash -434928737, now seen corresponding path program 1 times [2023-11-28 23:39:27,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:27,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61437556] [2023-11-28 23:39:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:27,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:39:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:39:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 23:39:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-28 23:39:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 23:39:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-28 23:39:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61437556] [2023-11-28 23:39:27,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61437556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:27,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224966323] [2023-11-28 23:39:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:27,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:27,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:27,678 INFO L87 Difference]: Start difference. First operand 2712 states and 4718 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-28 23:39:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:28,918 INFO L93 Difference]: Finished difference Result 6574 states and 11666 transitions. [2023-11-28 23:39:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 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 109 [2023-11-28 23:39:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:28,942 INFO L225 Difference]: With dead ends: 6574 [2023-11-28 23:39:28,943 INFO L226 Difference]: Without dead ends: 4317 [2023-11-28 23:39:28,953 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 [2023-11-28 23:39:28,954 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 958 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:28,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 871 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:39:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2023-11-28 23:39:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4244. [2023-11-28 23:39:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4244 states, 3476 states have (on average 1.6803797468354431) internal successors, (5841), 3482 states have internal predecessors, (5841), 744 states have call successors, (744), 19 states have call predecessors, (744), 23 states have return successors, (817), 742 states have call predecessors, (817), 743 states have call successors, (817) [2023-11-28 23:39:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 7402 transitions. [2023-11-28 23:39:29,162 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 7402 transitions. Word has length 109 [2023-11-28 23:39:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:29,162 INFO L495 AbstractCegarLoop]: Abstraction has 4244 states and 7402 transitions. [2023-11-28 23:39:29,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-28 23:39:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 7402 transitions. [2023-11-28 23:39:29,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-28 23:39:29,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:29,171 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] [2023-11-28 23:39:29,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:39:29,171 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:29,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash -896198281, now seen corresponding path program 1 times [2023-11-28 23:39:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036918159] [2023-11-28 23:39:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:29,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 23:39:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:39:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 23:39:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 23:39:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:39:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:39:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:29,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036918159] [2023-11-28 23:39:29,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036918159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:29,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194550486] [2023-11-28 23:39:29,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:29,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:29,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:29,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:29,275 INFO L87 Difference]: Start difference. First operand 4244 states and 7402 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-11-28 23:39:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:30,585 INFO L93 Difference]: Finished difference Result 10627 states and 18877 transitions. [2023-11-28 23:39:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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 110 [2023-11-28 23:39:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:30,637 INFO L225 Difference]: With dead ends: 10627 [2023-11-28 23:39:30,637 INFO L226 Difference]: Without dead ends: 7077 [2023-11-28 23:39:30,651 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 [2023-11-28 23:39:30,652 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 954 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:30,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 908 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:39:30,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7077 states. [2023-11-28 23:39:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7077 to 7004. [2023-11-28 23:39:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 5743 states have (on average 1.6745603343200417) internal successors, (9617), 5749 states have internal predecessors, (9617), 1237 states have call successors, (1237), 19 states have call predecessors, (1237), 23 states have return successors, (1354), 1235 states have call predecessors, (1354), 1236 states have call successors, (1354) [2023-11-28 23:39:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 12208 transitions. [2023-11-28 23:39:31,087 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 12208 transitions. Word has length 110 [2023-11-28 23:39:31,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:31,087 INFO L495 AbstractCegarLoop]: Abstraction has 7004 states and 12208 transitions. [2023-11-28 23:39:31,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-11-28 23:39:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 12208 transitions. [2023-11-28 23:39:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-28 23:39:31,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:31,105 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] [2023-11-28 23:39:31,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:39:31,106 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:31,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:31,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1513791419, now seen corresponding path program 1 times [2023-11-28 23:39:31,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:31,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898351709] [2023-11-28 23:39:31,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:31,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:39:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:39:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:39:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 23:39:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:39:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 23:39:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:31,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:31,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898351709] [2023-11-28 23:39:31,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898351709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:31,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:31,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:31,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461021220] [2023-11-28 23:39:31,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:31,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:31,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:31,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:31,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:31,214 INFO L87 Difference]: Start difference. First operand 7004 states and 12208 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-28 23:39:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:32,577 INFO L93 Difference]: Finished difference Result 17830 states and 31624 transitions. [2023-11-28 23:39:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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 111 [2023-11-28 23:39:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:32,629 INFO L225 Difference]: With dead ends: 17830 [2023-11-28 23:39:32,630 INFO L226 Difference]: Without dead ends: 11906 [2023-11-28 23:39:32,646 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 [2023-11-28 23:39:32,646 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 953 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:32,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 873 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:39:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11906 states. [2023-11-28 23:39:33,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11906 to 11833. [2023-11-28 23:39:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11833 states, 9750 states have (on average 1.6736410256410257) internal successors, (16318), 9756 states have internal predecessors, (16318), 2059 states have call successors, (2059), 19 states have call predecessors, (2059), 23 states have return successors, (2254), 2057 states have call predecessors, (2254), 2058 states have call successors, (2254) [2023-11-28 23:39:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11833 states to 11833 states and 20631 transitions. [2023-11-28 23:39:33,178 INFO L78 Accepts]: Start accepts. Automaton has 11833 states and 20631 transitions. Word has length 111 [2023-11-28 23:39:33,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:33,178 INFO L495 AbstractCegarLoop]: Abstraction has 11833 states and 20631 transitions. [2023-11-28 23:39:33,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-28 23:39:33,179 INFO L276 IsEmpty]: Start isEmpty. Operand 11833 states and 20631 transitions. [2023-11-28 23:39:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-28 23:39:33,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:33,198 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] [2023-11-28 23:39:33,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:39:33,198 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:33,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash 418966997, now seen corresponding path program 1 times [2023-11-28 23:39:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:33,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139914265] [2023-11-28 23:39:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:33,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:39:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 23:39:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:39:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:39:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 23:39:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:39:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:33,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:33,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139914265] [2023-11-28 23:39:33,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139914265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:33,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:33,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:33,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165348309] [2023-11-28 23:39:33,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:33,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:33,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:33,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:33,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:33,295 INFO L87 Difference]: Start difference. First operand 11833 states and 20631 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-11-28 23:39:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:34,945 INFO L93 Difference]: Finished difference Result 28376 states and 50072 transitions. [2023-11-28 23:39:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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 112 [2023-11-28 23:39:34,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:35,019 INFO L225 Difference]: With dead ends: 28376 [2023-11-28 23:39:35,019 INFO L226 Difference]: Without dead ends: 18578 [2023-11-28 23:39:35,048 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 [2023-11-28 23:39:35,049 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 949 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:35,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 848 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:39:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18578 states. [2023-11-28 23:39:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18578 to 18505. [2023-11-28 23:39:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18505 states, 15219 states have (on average 1.6497141730731322) internal successors, (25107), 15225 states have internal predecessors, (25107), 3262 states have call successors, (3262), 19 states have call predecessors, (3262), 23 states have return successors, (3601), 3260 states have call predecessors, (3601), 3261 states have call successors, (3601) [2023-11-28 23:39:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18505 states to 18505 states and 31970 transitions. [2023-11-28 23:39:36,059 INFO L78 Accepts]: Start accepts. Automaton has 18505 states and 31970 transitions. Word has length 112 [2023-11-28 23:39:36,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:36,059 INFO L495 AbstractCegarLoop]: Abstraction has 18505 states and 31970 transitions. [2023-11-28 23:39:36,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-11-28 23:39:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 31970 transitions. [2023-11-28 23:39:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-28 23:39:36,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:36,081 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] [2023-11-28 23:39:36,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:39:36,082 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:36,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1539055814, now seen corresponding path program 1 times [2023-11-28 23:39:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:36,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010632144] [2023-11-28 23:39:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:39:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:39:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:39:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:39:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 23:39:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 23:39:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:36,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:36,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010632144] [2023-11-28 23:39:36,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010632144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:36,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:36,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:36,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34932707] [2023-11-28 23:39:36,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:36,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:36,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:36,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:36,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:36,195 INFO L87 Difference]: Start difference. First operand 18505 states and 31970 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-28 23:39:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:38,264 INFO L93 Difference]: Finished difference Result 49009 states and 86191 transitions. [2023-11-28 23:39:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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 113 [2023-11-28 23:39:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:38,371 INFO L225 Difference]: With dead ends: 49009 [2023-11-28 23:39:38,371 INFO L226 Difference]: Without dead ends: 33159 [2023-11-28 23:39:38,398 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 [2023-11-28 23:39:38,399 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 946 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:38,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 874 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-28 23:39:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33159 states. [2023-11-28 23:39:39,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33159 to 33086. [2023-11-28 23:39:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33086 states, 27350 states have (on average 1.64654478976234) internal successors, (45033), 27356 states have internal predecessors, (45033), 5712 states have call successors, (5712), 19 states have call predecessors, (5712), 23 states have return successors, (6325), 5710 states have call predecessors, (6325), 5711 states have call successors, (6325) [2023-11-28 23:39:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33086 states to 33086 states and 57070 transitions. [2023-11-28 23:39:39,909 INFO L78 Accepts]: Start accepts. Automaton has 33086 states and 57070 transitions. Word has length 113 [2023-11-28 23:39:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:39,909 INFO L495 AbstractCegarLoop]: Abstraction has 33086 states and 57070 transitions. [2023-11-28 23:39:39,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-28 23:39:39,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33086 states and 57070 transitions. [2023-11-28 23:39:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-28 23:39:39,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:39,933 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] [2023-11-28 23:39:39,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:39:39,933 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:39,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:39,934 INFO L85 PathProgramCache]: Analyzing trace with hash 452555291, now seen corresponding path program 1 times [2023-11-28 23:39:39,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:39,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94000925] [2023-11-28 23:39:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:39,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:39:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:39:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:39:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:39:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-28 23:39:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:39:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:40,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:40,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94000925] [2023-11-28 23:39:40,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94000925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:40,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:40,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:40,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432395440] [2023-11-28 23:39:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:40,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:40,044 INFO L87 Difference]: Start difference. First operand 33086 states and 57070 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-11-28 23:39:42,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:42,937 INFO L93 Difference]: Finished difference Result 90311 states and 158020 transitions. [2023-11-28 23:39:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:42,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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 114 [2023-11-28 23:39:42,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:43,185 INFO L225 Difference]: With dead ends: 90311 [2023-11-28 23:39:43,186 INFO L226 Difference]: Without dead ends: 60771 [2023-11-28 23:39:43,268 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 [2023-11-28 23:39:43,269 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 945 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:43,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 892 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:39:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60771 states. [2023-11-28 23:39:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60771 to 60698. [2023-11-28 23:39:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60698 states, 50449 states have (on average 1.6425102578842) internal successors, (82863), 50455 states have internal predecessors, (82863), 10225 states have call successors, (10225), 19 states have call predecessors, (10225), 23 states have return successors, (11370), 10223 states have call predecessors, (11370), 10224 states have call successors, (11370) [2023-11-28 23:39:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60698 states to 60698 states and 104458 transitions. [2023-11-28 23:39:45,783 INFO L78 Accepts]: Start accepts. Automaton has 60698 states and 104458 transitions. Word has length 114 [2023-11-28 23:39:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:45,784 INFO L495 AbstractCegarLoop]: Abstraction has 60698 states and 104458 transitions. [2023-11-28 23:39:45,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-11-28 23:39:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 60698 states and 104458 transitions. [2023-11-28 23:39:45,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 23:39:45,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:45,799 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] [2023-11-28 23:39:45,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:39:45,799 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:45,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:45,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1228742906, now seen corresponding path program 1 times [2023-11-28 23:39:45,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:45,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664223118] [2023-11-28 23:39:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:45,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:39:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:39:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 23:39:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 23:39:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 23:39:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:39:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:39:45,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:45,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664223118] [2023-11-28 23:39:45,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664223118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:45,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:39:45,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:39:45,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628166855] [2023-11-28 23:39:45,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:45,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:39:45,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:45,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:39:45,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:39:45,897 INFO L87 Difference]: Start difference. First operand 60698 states and 104458 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) [2023-11-28 23:39:50,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:50,033 INFO L93 Difference]: Finished difference Result 113663 states and 199373 transitions. [2023-11-28 23:39:50,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:39:50,034 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 [2023-11-28 23:39:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:50,364 INFO L225 Difference]: With dead ends: 113663 [2023-11-28 23:39:50,364 INFO L226 Difference]: Without dead ends: 113565 [2023-11-28 23:39:50,398 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 [2023-11-28 23:39:50,399 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 942 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:50,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 874 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:39:50,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113565 states. [2023-11-28 23:39:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113565 to 113492. [2023-11-28 23:39:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113492 states, 94875 states have (on average 1.6374387351778656) internal successors, (155352), 94881 states have internal predecessors, (155352), 18593 states have call successors, (18593), 19 states have call predecessors, (18593), 23 states have return successors, (20784), 18591 states have call predecessors, (20784), 18592 states have call successors, (20784) [2023-11-28 23:39:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113492 states to 113492 states and 194729 transitions. [2023-11-28 23:39:55,014 INFO L78 Accepts]: Start accepts. Automaton has 113492 states and 194729 transitions. Word has length 115 [2023-11-28 23:39:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:55,014 INFO L495 AbstractCegarLoop]: Abstraction has 113492 states and 194729 transitions. [2023-11-28 23:39:55,014 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) [2023-11-28 23:39:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 113492 states and 194729 transitions. [2023-11-28 23:39:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-28 23:39:55,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:55,030 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] [2023-11-28 23:39:55,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:39:55,030 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:39:55,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:55,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1735414300, now seen corresponding path program 1 times [2023-11-28 23:39:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490459120] [2023-11-28 23:39:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:39:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:39:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:39:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:39:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:39:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:39:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:39:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:39:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:39:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:39:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:39:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:39:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-28 23:39:55,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:55,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490459120] [2023-11-28 23:39:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490459120] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:55,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588738767] [2023-11-28 23:39:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:55,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:55,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:55,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:55,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:39:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:55,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:39:55,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-28 23:39:56,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:39:56,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588738767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:39:56,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:39:56,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2023-11-28 23:39:56,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699161244] [2023-11-28 23:39:56,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:39:56,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:39:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:39:56,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2023-11-28 23:39:56,229 INFO L87 Difference]: Start difference. First operand 113492 states and 194729 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-28 23:39:59,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:59,154 INFO L93 Difference]: Finished difference Result 113706 states and 195034 transitions. [2023-11-28 23:39:59,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:39:59,155 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 116 [2023-11-28 23:39:59,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:59,600 INFO L225 Difference]: With dead ends: 113706 [2023-11-28 23:39:59,600 INFO L226 Difference]: Without dead ends: 113613 [2023-11-28 23:39:59,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=1313, Unknown=0, NotChecked=0, Total=1482 [2023-11-28 23:39:59,628 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 572 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:59,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 3802 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:39:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113613 states. [2023-11-28 23:40:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113613 to 113599. [2023-11-28 23:40:04,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113599 states, 94953 states have (on average 1.6373047718344866) internal successors, (155467), 94960 states have internal predecessors, (155467), 18609 states have call successors, (18609), 30 states have call predecessors, (18609), 36 states have return successors, (20809), 18608 states have call predecessors, (20809), 18607 states have call successors, (20809) [2023-11-28 23:40:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113599 states to 113599 states and 194885 transitions. [2023-11-28 23:40:04,385 INFO L78 Accepts]: Start accepts. Automaton has 113599 states and 194885 transitions. Word has length 116 [2023-11-28 23:40:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:40:04,385 INFO L495 AbstractCegarLoop]: Abstraction has 113599 states and 194885 transitions. [2023-11-28 23:40:04,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-28 23:40:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 113599 states and 194885 transitions. [2023-11-28 23:40:04,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-28 23:40:04,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:40:04,408 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] [2023-11-28 23:40:04,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 23:40:04,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2cc1-02d7-4a8d-957d-59c81b1c0d29/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-28 23:40:04,608 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:40:04,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:04,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1103995646, now seen corresponding path program 1 times [2023-11-28 23:40:04,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:04,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367296867] [2023-11-28 23:40:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:04,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:40:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:40:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:40:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:40:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:40:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:40:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:40:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:40:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:40:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:40:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:40:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:40:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:40:05,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:40:05,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367296867] [2023-11-28 23:40:05,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367296867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:40:05,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:40:05,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:40:05,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554645262] [2023-11-28 23:40:05,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:40:05,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:40:05,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:40:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:40:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:40:05,297 INFO L87 Difference]: Start difference. First operand 113599 states and 194885 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:40:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:40:11,128 INFO L93 Difference]: Finished difference Result 114216 states and 199251 transitions. [2023-11-28 23:40:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:40:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-11-28 23:40:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:40:11,446 INFO L225 Difference]: With dead ends: 114216 [2023-11-28 23:40:11,446 INFO L226 Difference]: Without dead ends: 114026 [2023-11-28 23:40:11,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=577, Unknown=0, NotChecked=0, Total=812 [2023-11-28 23:40:11,475 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1755 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 2990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:40:11,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 1140 Invalid, 2990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-28 23:40:11,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114026 states. [2023-11-28 23:40:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114026 to 113828. [2023-11-28 23:40:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113828 states, 95108 states have (on average 1.636928544391639) internal successors, (155685), 95120 states have internal predecessors, (155685), 18652 states have call successors, (18652), 48 states have call predecessors, (18652), 67 states have return successors, (20913), 18659 states have call predecessors, (20913), 18646 states have call successors, (20913) [2023-11-28 23:40:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113828 states to 113828 states and 195250 transitions. [2023-11-28 23:40:16,443 INFO L78 Accepts]: Start accepts. Automaton has 113828 states and 195250 transitions. Word has length 117 [2023-11-28 23:40:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:40:16,443 INFO L495 AbstractCegarLoop]: Abstraction has 113828 states and 195250 transitions. [2023-11-28 23:40:16,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:40:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 113828 states and 195250 transitions. [2023-11-28 23:40:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-28 23:40:16,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:40:16,462 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] [2023-11-28 23:40:16,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:40:16,462 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:40:16,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1613171855, now seen corresponding path program 1 times [2023-11-28 23:40:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295648722] [2023-11-28 23:40:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:16,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:40:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:40:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:40:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:40:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:40:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:40:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:40:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:40:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:40:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:40:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:40:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:40:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-28 23:40:16,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:40:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295648722] [2023-11-28 23:40:16,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295648722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:40:16,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:40:16,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:40:16,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488594471] [2023-11-28 23:40:16,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:40:16,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:40:16,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:40:16,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:40:16,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:40:16,638 INFO L87 Difference]: Start difference. First operand 113828 states and 195250 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-28 23:40:21,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:40:21,260 INFO L93 Difference]: Finished difference Result 114012 states and 198915 transitions. [2023-11-28 23:40:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:40:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2023-11-28 23:40:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:40:21,262 INFO L225 Difference]: With dead ends: 114012 [2023-11-28 23:40:21,262 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 23:40:21,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:40:21,469 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 826 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:40:21,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1200 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-28 23:40:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 23:40:21,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 23:40:21,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:40:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 23:40:21,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-11-28 23:40:21,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:40:21,482 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:40:21,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-28 23:40:21,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 23:40:21,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 23:40:21,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 23:40:21,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:40:21,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 23:45:29,734 WARN L293 SmtUtils]: Spent 5.12m on a formula simplification. DAG size of input: 87 DAG size of output: 36 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-28 23:50:29,047 WARN L293 SmtUtils]: Spent 4.99m on a formula simplification. DAG size of input: 87 DAG size of output: 36 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)