./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/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_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/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_93c56699-ac49-4786-9db5-7fc02905cb5f/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 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:58:02,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:58:02,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 23:58:02,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:58:02,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:58:02,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:58:02,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:58:02,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:58:02,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:58:02,399 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:58:02,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:58:02,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:58:02,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:58:02,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:58:02,402 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:58:02,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:58:02,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:58:02,403 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:58:02,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:58:02,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:58:02,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:58:02,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:58:02,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:58:02,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:58:02,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:58:02,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:58:02,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:58:02,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:58:02,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:58:02,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:58:02,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:58:02,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:58:02,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:58:02,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:58:02,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:58:02,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:58:02,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:58:02,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:58:02,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:58:02,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:58:02,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:58:02,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:58:02,413 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_93c56699-ac49-4786-9db5-7fc02905cb5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2023-11-28 23:58:02,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:58:02,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:58:02,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:58:02,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:58:02,678 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:58:02,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2023-11-28 23:58:05,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:58:05,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:58:05,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2023-11-28 23:58:05,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/data/4035e9f06/510f5c96f83549368c905e80f10fd4f2/FLAG1728c7ad0 [2023-11-28 23:58:05,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/data/4035e9f06/510f5c96f83549368c905e80f10fd4f2 [2023-11-28 23:58:05,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:58:05,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:58:05,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:58:05,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:58:05,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:58:05,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:05" (1/1) ... [2023-11-28 23:58:05,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcada0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:05, skipping insertion in model container [2023-11-28 23:58:05,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:05" (1/1) ... [2023-11-28 23:58:05,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:58:06,224 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_93c56699-ac49-4786-9db5-7fc02905cb5f/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2023-11-28 23:58:06,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:58:06,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:58:06,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-11-28 23:58:06,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [460] [2023-11-28 23:58:06,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1540] [2023-11-28 23:58:06,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1573] [2023-11-28 23:58:06,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1939] [2023-11-28 23:58:06,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2172] [2023-11-28 23:58:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2190] [2023-11-28 23:58:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2327] [2023-11-28 23:58:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2766] [2023-11-28 23:58:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2775] [2023-11-28 23:58:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2813] [2023-11-28 23:58:06,347 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_93c56699-ac49-4786-9db5-7fc02905cb5f/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2023-11-28 23:58:06,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:58:06,382 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:58:06,388 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:58:06,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06 WrapperNode [2023-11-28 23:58:06,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:58:06,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:58:06,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:58:06,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:58:06,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,476 INFO L138 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1170 [2023-11-28 23:58:06,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:58:06,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:58:06,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:58:06,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:58:06,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,525 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 23:58:06,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:58:06,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:58:06,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:58:06,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:58:06,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (1/1) ... [2023-11-28 23:58:06,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:58:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:06,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:58:06,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:58:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-28 23:58:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-28 23:58:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-28 23:58:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-28 23:58:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-28 23:58:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-28 23:58:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-28 23:58:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-28 23:58:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-28 23:58:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-28 23:58:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-28 23:58:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-28 23:58:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-28 23:58:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-28 23:58:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-28 23:58:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-28 23:58:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-28 23:58:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-28 23:58:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-28 23:58:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-28 23:58:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-28 23:58:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-28 23:58:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-28 23:58:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-28 23:58:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-28 23:58:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-28 23:58:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-28 23:58:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-28 23:58:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-28 23:58:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-28 23:58:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-28 23:58:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-28 23:58:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-28 23:58:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:58:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-28 23:58:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-28 23:58:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-28 23:58:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-28 23:58:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-28 23:58:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-28 23:58:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-28 23:58:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-28 23:58:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-28 23:58:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-28 23:58:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-28 23:58:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-28 23:58:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-28 23:58:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-28 23:58:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-28 23:58:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-28 23:58:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-28 23:58:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-28 23:58:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-28 23:58:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-28 23:58:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-28 23:58:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-28 23:58:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-28 23:58:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-28 23:58:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:58:06,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:58:06,881 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:58:06,883 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:58:07,667 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:58:07,729 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:58:07,729 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:58:07,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:07 BoogieIcfgContainer [2023-11-28 23:58:07,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:58:07,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:58:07,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:58:07,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:58:07,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:58:05" (1/3) ... [2023-11-28 23:58:07,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3955b9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:58:07, skipping insertion in model container [2023-11-28 23:58:07,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:06" (2/3) ... [2023-11-28 23:58:07,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3955b9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:58:07, skipping insertion in model container [2023-11-28 23:58:07,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:07" (3/3) ... [2023-11-28 23:58:07,738 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2023-11-28 23:58:07,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:58:07,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:58:07,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:58:07,813 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;@55d08ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:58:07,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:58:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 326 states have (on average 1.5889570552147239) internal successors, (518), 331 states have internal predecessors, (518), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-28 23:58:07,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-28 23:58:07,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:07,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:07,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:07,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:07,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1640000615, now seen corresponding path program 1 times [2023-11-28 23:58:07,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334620489] [2023-11-28 23:58:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:58:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:58:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 23:58:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 23:58:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:58:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 23:58:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 23:58:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 23:58:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 23:58:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:58:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:58:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:58:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:58:08,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:08,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334620489] [2023-11-28 23:58:08,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334620489] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:08,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597111900] [2023-11-28 23:58:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:08,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:08,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:08,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:58:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:58:09,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 23:58:09,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:09,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597111900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:09,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:09,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-28 23:58:09,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850894258] [2023-11-28 23:58:09,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:09,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:58:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:09,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:58:09,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:58:09,117 INFO L87 Difference]: Start difference. First operand has 431 states, 326 states have (on average 1.5889570552147239) internal successors, (518), 331 states have internal predecessors, (518), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:09,223 INFO L93 Difference]: Finished difference Result 674 states and 1024 transitions. [2023-11-28 23:58:09,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:58:09,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2023-11-28 23:58:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:09,242 INFO L225 Difference]: With dead ends: 674 [2023-11-28 23:58:09,242 INFO L226 Difference]: Without dead ends: 428 [2023-11-28 23:58:09,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 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 23:58:09,253 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:09,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:58:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-28 23:58:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2023-11-28 23:58:09,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 324 states have (on average 1.5771604938271604) internal successors, (511), 328 states have internal predecessors, (511), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-28 23:58:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 658 transitions. [2023-11-28 23:58:09,335 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 658 transitions. Word has length 140 [2023-11-28 23:58:09,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:09,336 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 658 transitions. [2023-11-28 23:58:09,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 658 transitions. [2023-11-28 23:58:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-28 23:58:09,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:09,343 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:09,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:58:09,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 23:58:09,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:09,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:09,545 INFO L85 PathProgramCache]: Analyzing trace with hash 632917573, now seen corresponding path program 1 times [2023-11-28 23:58:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:09,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853017134] [2023-11-28 23:58:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:58:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:58:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 23:58:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:58:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:58:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:58:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:58:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:58:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 23:58:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:58:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 23:58:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-28 23:58:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-28 23:58:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853017134] [2023-11-28 23:58:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853017134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286517027] [2023-11-28 23:58:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:09,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:09,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:09,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:09,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:58:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:58:10,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 23:58:10,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:10,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286517027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:10,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:10,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 23:58:10,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865786365] [2023-11-28 23:58:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:10,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:58:10,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:58:10,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:10,245 INFO L87 Difference]: Start difference. First operand 428 states and 658 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:10,313 INFO L93 Difference]: Finished difference Result 670 states and 1008 transitions. [2023-11-28 23:58:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:58:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2023-11-28 23:58:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:10,318 INFO L225 Difference]: With dead ends: 670 [2023-11-28 23:58:10,319 INFO L226 Difference]: Without dead ends: 430 [2023-11-28 23:58:10,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 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 23:58:10,322 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 0 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:10,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1277 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:58:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-28 23:58:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2023-11-28 23:58:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 326 states have (on average 1.5736196319018405) internal successors, (513), 330 states have internal predecessors, (513), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-28 23:58:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2023-11-28 23:58:10,353 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 141 [2023-11-28 23:58:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:10,354 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2023-11-28 23:58:10,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2023-11-28 23:58:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-28 23:58:10,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:10,358 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:10,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:58:10,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:10,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:10,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1204295390, now seen corresponding path program 1 times [2023-11-28 23:58:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:10,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008488873] [2023-11-28 23:58:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:58:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:58:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 23:58:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:58:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 23:58:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:58:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:58:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:58:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 23:58:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-28 23:58:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-28 23:58:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-28 23:58:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008488873] [2023-11-28 23:58:10,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008488873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:10,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920602618] [2023-11-28 23:58:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:10,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:10,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:10,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:10,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:58:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:58:11,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 23:58:11,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920602618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:11,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:11,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 23:58:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626382248] [2023-11-28 23:58:11,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:11,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:58:11,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:58:11,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:11,219 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:11,293 INFO L93 Difference]: Finished difference Result 912 states and 1419 transitions. [2023-11-28 23:58:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:58:11,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2023-11-28 23:58:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:11,299 INFO L225 Difference]: With dead ends: 912 [2023-11-28 23:58:11,299 INFO L226 Difference]: Without dead ends: 504 [2023-11-28 23:58:11,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 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 23:58:11,302 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 136 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:11,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:58:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-11-28 23:58:11,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 499. [2023-11-28 23:58:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 381 states have (on average 1.5931758530183726) internal successors, (607), 385 states have internal predecessors, (607), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-28 23:58:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 782 transitions. [2023-11-28 23:58:11,330 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 782 transitions. Word has length 148 [2023-11-28 23:58:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:11,330 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 782 transitions. [2023-11-28 23:58:11,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 782 transitions. [2023-11-28 23:58:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-28 23:58:11,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:11,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:11,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-28 23:58:11,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:11,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:11,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1334952870, now seen corresponding path program 1 times [2023-11-28 23:58:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:11,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248153160] [2023-11-28 23:58:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 23:58:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 23:58:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-28 23:58:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:58:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:58:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 23:58:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:58:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 23:58:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 23:58:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-28 23:58:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-28 23:58:11,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248153160] [2023-11-28 23:58:11,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248153160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565757931] [2023-11-28 23:58:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:11,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:11,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:11,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:11,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:58:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:58:12,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-28 23:58:12,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:12,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565757931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:12,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:12,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-28 23:58:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505054475] [2023-11-28 23:58:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:12,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:58:12,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:58:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:58:12,318 INFO L87 Difference]: Start difference. First operand 499 states and 782 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-28 23:58:12,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:12,468 INFO L93 Difference]: Finished difference Result 993 states and 1558 transitions. [2023-11-28 23:58:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:58:12,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2023-11-28 23:58:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:12,472 INFO L225 Difference]: With dead ends: 993 [2023-11-28 23:58:12,473 INFO L226 Difference]: Without dead ends: 501 [2023-11-28 23:58:12,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 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 23:58:12,476 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 8 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:12,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2509 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:58:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-28 23:58:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-11-28 23:58:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 382 states have (on average 1.5916230366492146) internal successors, (608), 387 states have internal predecessors, (608), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2023-11-28 23:58:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 785 transitions. [2023-11-28 23:58:12,500 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 785 transitions. Word has length 149 [2023-11-28 23:58:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:12,501 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 785 transitions. [2023-11-28 23:58:12,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-28 23:58:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 785 transitions. [2023-11-28 23:58:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-28 23:58:12,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:12,505 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:12,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-28 23:58:12,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:12,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:12,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:12,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2027779179, now seen corresponding path program 1 times [2023-11-28 23:58:12,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:12,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148779037] [2023-11-28 23:58:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:12,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-28 23:58:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:58:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 23:58:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:58:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 23:58:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:58:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:58:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:58:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 23:58:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:58:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 23:58:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-28 23:58:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-28 23:58:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-28 23:58:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 23:58:13,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148779037] [2023-11-28 23:58:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148779037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002412138] [2023-11-28 23:58:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:13,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:13,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:13,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:13,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:58:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:13,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:58:13,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-28 23:58:13,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002412138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:13,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-28 23:58:13,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022689814] [2023-11-28 23:58:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:13,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:58:13,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:13,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:58:13,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:58:13,480 INFO L87 Difference]: Start difference. First operand 501 states and 785 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-28 23:58:13,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:13,620 INFO L93 Difference]: Finished difference Result 995 states and 1563 transitions. [2023-11-28 23:58:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:58:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2023-11-28 23:58:13,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:13,625 INFO L225 Difference]: With dead ends: 995 [2023-11-28 23:58:13,625 INFO L226 Difference]: Without dead ends: 503 [2023-11-28 23:58:13,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 204 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 23:58:13,628 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 8 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:13,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2495 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:58:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-28 23:58:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-11-28 23:58:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 383 states have (on average 1.5900783289817233) internal successors, (609), 389 states have internal predecessors, (609), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2023-11-28 23:58:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 791 transitions. [2023-11-28 23:58:13,652 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 791 transitions. Word has length 168 [2023-11-28 23:58:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:13,652 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 791 transitions. [2023-11-28 23:58:13,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-28 23:58:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 791 transitions. [2023-11-28 23:58:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-28 23:58:13,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:13,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:13,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 23:58:13,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:13,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:13,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 771035920, now seen corresponding path program 1 times [2023-11-28 23:58:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:13,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969510175] [2023-11-28 23:58:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-28 23:58:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:58:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 23:58:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:58:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:58:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:58:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 23:58:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:58:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 23:58:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 23:58:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:58:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-28 23:58:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-28 23:58:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-28 23:58:14,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:14,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969510175] [2023-11-28 23:58:14,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969510175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:14,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:14,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:58:14,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836548175] [2023-11-28 23:58:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:14,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:58:14,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:58:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:58:14,137 INFO L87 Difference]: Start difference. First operand 503 states and 791 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-28 23:58:17,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:17,064 INFO L93 Difference]: Finished difference Result 1182 states and 1896 transitions. [2023-11-28 23:58:17,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:58:17,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 169 [2023-11-28 23:58:17,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:17,071 INFO L225 Difference]: With dead ends: 1182 [2023-11-28 23:58:17,071 INFO L226 Difference]: Without dead ends: 698 [2023-11-28 23:58:17,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 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 23:58:17,074 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1628 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:17,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 1242 Invalid, 3761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-28 23:58:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-28 23:58:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 503. [2023-11-28 23:58:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 383 states have (on average 1.5900783289817233) internal successors, (609), 389 states have internal predecessors, (609), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2023-11-28 23:58:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 790 transitions. [2023-11-28 23:58:17,119 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 790 transitions. Word has length 169 [2023-11-28 23:58:17,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:17,119 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 790 transitions. [2023-11-28 23:58:17,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-28 23:58:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 790 transitions. [2023-11-28 23:58:17,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-28 23:58:17,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:17,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:17,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:58:17,123 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:17,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:17,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1055127813, now seen corresponding path program 1 times [2023-11-28 23:58:17,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:17,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771454360] [2023-11-28 23:58:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:17,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 23:58:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:58:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:58:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:58:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:58:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:58:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 23:58:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:58:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 23:58:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:58:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-28 23:58:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771454360] [2023-11-28 23:58:17,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771454360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:17,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:17,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:58:17,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139625558] [2023-11-28 23:58:17,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:17,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:58:17,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:58:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:58:17,345 INFO L87 Difference]: Start difference. First operand 503 states and 790 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-28 23:58:19,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:19,867 INFO L93 Difference]: Finished difference Result 1184 states and 1899 transitions. [2023-11-28 23:58:19,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:58:19,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2023-11-28 23:58:19,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:19,872 INFO L225 Difference]: With dead ends: 1184 [2023-11-28 23:58:19,872 INFO L226 Difference]: Without dead ends: 700 [2023-11-28 23:58:19,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 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 23:58:19,875 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1631 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:19,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 1240 Invalid, 3660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:58:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-28 23:58:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 505. [2023-11-28 23:58:19,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 384 states have (on average 1.5885416666666667) internal successors, (610), 391 states have internal predecessors, (610), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2023-11-28 23:58:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 793 transitions. [2023-11-28 23:58:19,910 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 793 transitions. Word has length 152 [2023-11-28 23:58:19,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:19,911 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 793 transitions. [2023-11-28 23:58:19,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-28 23:58:19,911 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 793 transitions. [2023-11-28 23:58:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-28 23:58:19,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:19,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:19,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:58:19,914 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:19,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash 336687268, now seen corresponding path program 1 times [2023-11-28 23:58:19,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:19,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681613787] [2023-11-28 23:58:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-28 23:58:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-28 23:58:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:58:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:58:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 23:58:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:58:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 23:58:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:58:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-28 23:58:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-28 23:58:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-28 23:58:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-28 23:58:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681613787] [2023-11-28 23:58:20,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681613787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:20,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:20,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:58:20,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147632923] [2023-11-28 23:58:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:20,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:58:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:58:20,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:58:20,148 INFO L87 Difference]: Start difference. First operand 505 states and 793 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:58:23,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:23,287 INFO L93 Difference]: Finished difference Result 1182 states and 1894 transitions. [2023-11-28 23:58:23,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:58:23,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 153 [2023-11-28 23:58:23,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:23,292 INFO L225 Difference]: With dead ends: 1182 [2023-11-28 23:58:23,292 INFO L226 Difference]: Without dead ends: 700 [2023-11-28 23:58:23,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 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 23:58:23,294 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1573 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5449 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 5449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:23,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1718 Invalid, 6058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 5449 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-28 23:58:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-28 23:58:23,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 505. [2023-11-28 23:58:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 384 states have (on average 1.5885416666666667) internal successors, (610), 391 states have internal predecessors, (610), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2023-11-28 23:58:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 792 transitions. [2023-11-28 23:58:23,347 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 792 transitions. Word has length 153 [2023-11-28 23:58:23,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:23,347 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 792 transitions. [2023-11-28 23:58:23,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:58:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 792 transitions. [2023-11-28 23:58:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-28 23:58:23,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:23,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:58:23,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:23,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash 376986635, now seen corresponding path program 2 times [2023-11-28 23:58:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684892156] [2023-11-28 23:58:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 23:58:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 23:58:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:58:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 23:58:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:58:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:58:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-28 23:58:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-28 23:58:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 23:58:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-28 23:58:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-28 23:58:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684892156] [2023-11-28 23:58:23,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684892156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:23,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:58:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384473928] [2023-11-28 23:58:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:23,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:58:23,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:23,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:58:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:58:23,623 INFO L87 Difference]: Start difference. First operand 505 states and 792 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:58:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:26,485 INFO L93 Difference]: Finished difference Result 1184 states and 1900 transitions. [2023-11-28 23:58:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:58:26,486 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 154 [2023-11-28 23:58:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:26,490 INFO L225 Difference]: With dead ends: 1184 [2023-11-28 23:58:26,490 INFO L226 Difference]: Without dead ends: 702 [2023-11-28 23:58:26,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 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 23:58:26,492 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1684 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5029 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 5029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:26,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 1718 Invalid, 5672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 5029 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-28 23:58:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-28 23:58:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 507. [2023-11-28 23:58:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 385 states have (on average 1.587012987012987) internal successors, (611), 393 states have internal predecessors, (611), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2023-11-28 23:58:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 798 transitions. [2023-11-28 23:58:26,544 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 798 transitions. Word has length 154 [2023-11-28 23:58:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:26,544 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 798 transitions. [2023-11-28 23:58:26,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-28 23:58:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 798 transitions. [2023-11-28 23:58:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-28 23:58:26,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:26,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:26,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:58:26,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:26,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:26,547 INFO L85 PathProgramCache]: Analyzing trace with hash 6146633, now seen corresponding path program 1 times [2023-11-28 23:58:26,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:26,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581675395] [2023-11-28 23:58:26,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:26,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:58:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:58:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:58:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 23:58:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:58:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:58:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-28 23:58:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-28 23:58:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581675395] [2023-11-28 23:58:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581675395] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509563525] [2023-11-28 23:58:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:26,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:26,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:58:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:27,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:58:27,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 23:58:27,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:58:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 23:58:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509563525] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:58:27,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:58:27,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-28 23:58:27,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987312557] [2023-11-28 23:58:27,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:58:27,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:58:27,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:27,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:58:27,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:58:27,317 INFO L87 Difference]: Start difference. First operand 507 states and 798 transitions. Second operand has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-28 23:58:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:30,986 INFO L93 Difference]: Finished difference Result 1623 states and 2711 transitions. [2023-11-28 23:58:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 23:58:30,987 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 155 [2023-11-28 23:58:30,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:30,995 INFO L225 Difference]: With dead ends: 1623 [2023-11-28 23:58:30,995 INFO L226 Difference]: Without dead ends: 1142 [2023-11-28 23:58:30,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 344 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 23:58:30,998 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 2789 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 6462 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 7506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 6462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:30,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 2093 Invalid, 7506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 6462 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-28 23:58:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2023-11-28 23:58:31,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 932. [2023-11-28 23:58:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 731 states have (on average 1.640218878248974) internal successors, (1199), 739 states have internal predecessors, (1199), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2023-11-28 23:58:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1554 transitions. [2023-11-28 23:58:31,079 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1554 transitions. Word has length 155 [2023-11-28 23:58:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:31,080 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1554 transitions. [2023-11-28 23:58:31,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 11 states have internal predecessors, (148), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-28 23:58:31,081 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1554 transitions. [2023-11-28 23:58:31,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-28 23:58:31,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:31,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:31,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-28 23:58:31,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:31,288 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:31,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1720397872, now seen corresponding path program 1 times [2023-11-28 23:58:31,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796149611] [2023-11-28 23:58:31,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:31,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 23:58:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:58:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:58:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:58:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 23:58:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:58:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 23:58:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-28 23:58:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:58:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-28 23:58:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-28 23:58:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-28 23:58:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:31,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:31,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796149611] [2023-11-28 23:58:31,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796149611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:31,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:31,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:31,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351421496] [2023-11-28 23:58:31,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:31,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:31,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:31,453 INFO L87 Difference]: Start difference. First operand 932 states and 1554 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:33,286 INFO L93 Difference]: Finished difference Result 2398 states and 4100 transitions. [2023-11-28 23:58:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2023-11-28 23:58:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:33,295 INFO L225 Difference]: With dead ends: 2398 [2023-11-28 23:58:33,296 INFO L226 Difference]: Without dead ends: 1534 [2023-11-28 23:58:33,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:33,298 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1673 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 951 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:58:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-11-28 23:58:33,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1334. [2023-11-28 23:58:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1054 states have (on average 1.6565464895635673) internal successors, (1746), 1062 states have internal predecessors, (1746), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2023-11-28 23:58:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2269 transitions. [2023-11-28 23:58:33,401 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2269 transitions. Word has length 177 [2023-11-28 23:58:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:33,402 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2269 transitions. [2023-11-28 23:58:33,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:33,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2269 transitions. [2023-11-28 23:58:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-28 23:58:33,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:33,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:33,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:58:33,412 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:33,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1713826840, now seen corresponding path program 1 times [2023-11-28 23:58:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937266744] [2023-11-28 23:58:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:33,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:58:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:58:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:58:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 23:58:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:58:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 23:58:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-28 23:58:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:58:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-28 23:58:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-28 23:58:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 23:58:33,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:33,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937266744] [2023-11-28 23:58:33,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937266744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:33,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:33,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983797226] [2023-11-28 23:58:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:33,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:33,568 INFO L87 Difference]: Start difference. First operand 1334 states and 2269 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:35,422 INFO L93 Difference]: Finished difference Result 3401 states and 5877 transitions. [2023-11-28 23:58:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2023-11-28 23:58:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:35,433 INFO L225 Difference]: With dead ends: 3401 [2023-11-28 23:58:35,434 INFO L226 Difference]: Without dead ends: 2185 [2023-11-28 23:58:35,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 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 23:58:35,437 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1678 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:35,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 909 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:58:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2023-11-28 23:58:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 1985. [2023-11-28 23:58:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1586 states have (on average 1.665825977301387) internal successors, (2642), 1594 states have internal predecessors, (2642), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2023-11-28 23:58:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 3403 transitions. [2023-11-28 23:58:35,557 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 3403 transitions. Word has length 160 [2023-11-28 23:58:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:35,558 INFO L495 AbstractCegarLoop]: Abstraction has 1985 states and 3403 transitions. [2023-11-28 23:58:35,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 3403 transitions. [2023-11-28 23:58:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-28 23:58:35,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:35,573 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:35,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:58:35,573 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:35,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:35,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1047802654, now seen corresponding path program 1 times [2023-11-28 23:58:35,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:35,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307958776] [2023-11-28 23:58:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 23:58:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:58:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:58:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:58:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:58:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 23:58:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:58:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-28 23:58:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-28 23:58:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-28 23:58:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-28 23:58:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-28 23:58:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:35,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:35,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307958776] [2023-11-28 23:58:35,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307958776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:35,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:35,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77756365] [2023-11-28 23:58:35,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:35,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:35,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:35,724 INFO L87 Difference]: Start difference. First operand 1985 states and 3403 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:37,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:37,653 INFO L93 Difference]: Finished difference Result 4925 states and 8595 transitions. [2023-11-28 23:58:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:37,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2023-11-28 23:58:37,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:37,669 INFO L225 Difference]: With dead ends: 4925 [2023-11-28 23:58:37,670 INFO L226 Difference]: Without dead ends: 3186 [2023-11-28 23:58:37,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:37,674 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1668 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:37,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 913 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 23:58:37,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2023-11-28 23:58:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2986. [2023-11-28 23:58:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2425 states have (on average 1.6734020618556702) internal successors, (4058), 2433 states have internal predecessors, (4058), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2023-11-28 23:58:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 5159 transitions. [2023-11-28 23:58:37,803 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 5159 transitions. Word has length 179 [2023-11-28 23:58:37,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:37,804 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 5159 transitions. [2023-11-28 23:58:37,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:37,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 5159 transitions. [2023-11-28 23:58:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-28 23:58:37,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:37,816 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:37,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:58:37,816 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:37,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2056750134, now seen corresponding path program 1 times [2023-11-28 23:58:37,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:37,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323394531] [2023-11-28 23:58:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:37,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:58:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:58:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 23:58:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 23:58:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:58:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 23:58:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 23:58:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-28 23:58:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 23:58:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-28 23:58:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-28 23:58:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-28 23:58:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-28 23:58:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-28 23:58:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:37,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:37,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323394531] [2023-11-28 23:58:37,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323394531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:37,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:37,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:37,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711304622] [2023-11-28 23:58:37,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:37,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:37,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:37,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:37,993 INFO L87 Difference]: Start difference. First operand 2986 states and 5159 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:39,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:39,975 INFO L93 Difference]: Finished difference Result 7337 states and 12908 transitions. [2023-11-28 23:58:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:39,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2023-11-28 23:58:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:40,001 INFO L225 Difference]: With dead ends: 7337 [2023-11-28 23:58:40,001 INFO L226 Difference]: Without dead ends: 4806 [2023-11-28 23:58:40,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:40,008 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1657 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:40,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 913 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:58:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2023-11-28 23:58:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4606. [2023-11-28 23:58:40,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4606 states, 3800 states have (on average 1.6789473684210525) internal successors, (6380), 3808 states have internal predecessors, (6380), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2023-11-28 23:58:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4606 states to 4606 states and 7997 transitions. [2023-11-28 23:58:40,274 INFO L78 Accepts]: Start accepts. Automaton has 4606 states and 7997 transitions. Word has length 180 [2023-11-28 23:58:40,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:40,274 INFO L495 AbstractCegarLoop]: Abstraction has 4606 states and 7997 transitions. [2023-11-28 23:58:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states and 7997 transitions. [2023-11-28 23:58:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-28 23:58:40,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:40,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:40,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:58:40,301 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:40,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:40,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1959128506, now seen corresponding path program 1 times [2023-11-28 23:58:40,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:40,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112476237] [2023-11-28 23:58:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 23:58:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:58:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 23:58:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 23:58:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-28 23:58:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:58:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-28 23:58:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-28 23:58:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-28 23:58:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-28 23:58:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-28 23:58:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-28 23:58:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:40,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:40,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112476237] [2023-11-28 23:58:40,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112476237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:40,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:40,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:40,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073705535] [2023-11-28 23:58:40,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:40,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:40,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:40,450 INFO L87 Difference]: Start difference. First operand 4606 states and 7997 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:42,581 INFO L93 Difference]: Finished difference Result 11414 states and 20161 transitions. [2023-11-28 23:58:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:42,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2023-11-28 23:58:42,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:42,626 INFO L225 Difference]: With dead ends: 11414 [2023-11-28 23:58:42,626 INFO L226 Difference]: Without dead ends: 7566 [2023-11-28 23:58:42,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:42,637 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1675 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:42,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 935 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 23:58:42,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2023-11-28 23:58:42,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 7366. [2023-11-28 23:58:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7366 states, 6067 states have (on average 1.673973957474864) internal successors, (10156), 6075 states have internal predecessors, (10156), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2023-11-28 23:58:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 12803 transitions. [2023-11-28 23:58:42,943 INFO L78 Accepts]: Start accepts. Automaton has 7366 states and 12803 transitions. Word has length 181 [2023-11-28 23:58:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:42,943 INFO L495 AbstractCegarLoop]: Abstraction has 7366 states and 12803 transitions. [2023-11-28 23:58:42,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:42,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7366 states and 12803 transitions. [2023-11-28 23:58:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-28 23:58:42,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:42,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:58:42,970 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:42,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:42,970 INFO L85 PathProgramCache]: Analyzing trace with hash 559350062, now seen corresponding path program 1 times [2023-11-28 23:58:42,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:42,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355092753] [2023-11-28 23:58:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:42,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-28 23:58:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:58:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:58:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 23:58:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 23:58:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 23:58:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-28 23:58:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-28 23:58:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-28 23:58:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-28 23:58:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-28 23:58:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-28 23:58:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-28 23:58:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:43,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:43,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355092753] [2023-11-28 23:58:43,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355092753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:43,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:43,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871370687] [2023-11-28 23:58:43,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:43,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:43,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:43,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:43,088 INFO L87 Difference]: Start difference. First operand 7366 states and 12803 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:45,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:45,223 INFO L93 Difference]: Finished difference Result 18773 states and 33181 transitions. [2023-11-28 23:58:45,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:45,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2023-11-28 23:58:45,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:45,277 INFO L225 Difference]: With dead ends: 18773 [2023-11-28 23:58:45,277 INFO L226 Difference]: Without dead ends: 12551 [2023-11-28 23:58:45,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:45,293 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1738 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:45,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 918 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:58:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2023-11-28 23:58:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12351. [2023-11-28 23:58:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12351 states, 10230 states have (on average 1.6744868035190617) internal successors, (17130), 10238 states have internal predecessors, (17130), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2023-11-28 23:58:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12351 states to 12351 states and 21499 transitions. [2023-11-28 23:58:45,795 INFO L78 Accepts]: Start accepts. Automaton has 12351 states and 21499 transitions. Word has length 182 [2023-11-28 23:58:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:45,795 INFO L495 AbstractCegarLoop]: Abstraction has 12351 states and 21499 transitions. [2023-11-28 23:58:45,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12351 states and 21499 transitions. [2023-11-28 23:58:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-28 23:58:45,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:45,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:45,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:58:45,828 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:45,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:45,828 INFO L85 PathProgramCache]: Analyzing trace with hash 944448264, now seen corresponding path program 1 times [2023-11-28 23:58:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:45,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852498892] [2023-11-28 23:58:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 23:58:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 23:58:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 23:58:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-28 23:58:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 23:58:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:58:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:58:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-28 23:58:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:58:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-28 23:58:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-28 23:58:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-28 23:58:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-28 23:58:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:45,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:45,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852498892] [2023-11-28 23:58:45,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852498892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634074141] [2023-11-28 23:58:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:45,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:45,952 INFO L87 Difference]: Start difference. First operand 12351 states and 21499 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:48,442 INFO L93 Difference]: Finished difference Result 29739 states and 52364 transitions. [2023-11-28 23:58:48,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:48,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2023-11-28 23:58:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:48,525 INFO L225 Difference]: With dead ends: 29739 [2023-11-28 23:58:48,526 INFO L226 Difference]: Without dead ends: 19511 [2023-11-28 23:58:48,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:48,548 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1771 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:48,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 896 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 23:58:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19511 states. [2023-11-28 23:58:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19511 to 19311. [2023-11-28 23:58:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19311 states, 15987 states have (on average 1.6527803840620505) internal successors, (26423), 15995 states have internal predecessors, (26423), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2023-11-28 23:58:49,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19311 states to 19311 states and 33342 transitions. [2023-11-28 23:58:49,334 INFO L78 Accepts]: Start accepts. Automaton has 19311 states and 33342 transitions. Word has length 183 [2023-11-28 23:58:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:49,334 INFO L495 AbstractCegarLoop]: Abstraction has 19311 states and 33342 transitions. [2023-11-28 23:58:49,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 19311 states and 33342 transitions. [2023-11-28 23:58:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-28 23:58:49,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:49,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:49,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:58:49,373 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:49,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash 280675151, now seen corresponding path program 1 times [2023-11-28 23:58:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198090119] [2023-11-28 23:58:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:58:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:58:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 23:58:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 23:58:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:58:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 23:58:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 23:58:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:58:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-28 23:58:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-28 23:58:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-28 23:58:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-28 23:58:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-28 23:58:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-28 23:58:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:58:49,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:49,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198090119] [2023-11-28 23:58:49,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198090119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:49,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:49,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:49,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71645731] [2023-11-28 23:58:49,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:49,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:49,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:49,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:49,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:49,491 INFO L87 Difference]: Start difference. First operand 19311 states and 33342 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:52,452 INFO L93 Difference]: Finished difference Result 51180 states and 89897 transitions. [2023-11-28 23:58:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2023-11-28 23:58:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:52,593 INFO L225 Difference]: With dead ends: 51180 [2023-11-28 23:58:52,593 INFO L226 Difference]: Without dead ends: 34640 [2023-11-28 23:58:52,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:58:52,642 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1658 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:52,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 914 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 23:58:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34640 states. [2023-11-28 23:58:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34640 to 34440. [2023-11-28 23:58:53,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34440 states, 28666 states have (on average 1.6503174492430057) internal successors, (47308), 28674 states have internal predecessors, (47308), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2023-11-28 23:58:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34440 states to 34440 states and 59401 transitions. [2023-11-28 23:58:54,031 INFO L78 Accepts]: Start accepts. Automaton has 34440 states and 59401 transitions. Word has length 184 [2023-11-28 23:58:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:54,032 INFO L495 AbstractCegarLoop]: Abstraction has 34440 states and 59401 transitions. [2023-11-28 23:58:54,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:58:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 34440 states and 59401 transitions. [2023-11-28 23:58:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-28 23:58:54,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:54,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:54,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:58:54,110 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:58:54,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1656335599, now seen corresponding path program 1 times [2023-11-28 23:58:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:54,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364233685] [2023-11-28 23:58:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:54,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:58:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:58:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:58:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:58:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:58:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:58:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:58:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 23:58:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-28 23:58:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 23:58:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:58:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-28 23:58:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-28 23:58:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-28 23:58:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-28 23:58:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 23:58:54,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:54,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364233685] [2023-11-28 23:58:54,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364233685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:58:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787343604] [2023-11-28 23:58:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:54,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:58:54,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:58:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:58:54,246 INFO L87 Difference]: Start difference. First operand 34440 states and 59401 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:58:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:58,105 INFO L93 Difference]: Finished difference Result 94062 states and 164491 transitions. [2023-11-28 23:58:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:58:58,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2023-11-28 23:58:58,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:58,330 INFO L225 Difference]: With dead ends: 94062 [2023-11-28 23:58:58,330 INFO L226 Difference]: Without dead ends: 63316 [2023-11-28 23:58:58,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 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 23:58:58,371 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1664 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:58,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 921 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 23:58:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63316 states. [2023-11-28 23:59:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63316 to 63116. [2023-11-28 23:59:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63116 states, 52829 states have (on average 1.6468227677979896) internal successors, (87000), 52837 states have internal predecessors, (87000), 10253 states have call successors, (10253), 29 states have call predecessors, (10253), 33 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2023-11-28 23:59:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63116 states to 63116 states and 108651 transitions. [2023-11-28 23:59:00,544 INFO L78 Accepts]: Start accepts. Automaton has 63116 states and 108651 transitions. Word has length 167 [2023-11-28 23:59:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:59:00,544 INFO L495 AbstractCegarLoop]: Abstraction has 63116 states and 108651 transitions. [2023-11-28 23:59:00,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:59:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 63116 states and 108651 transitions. [2023-11-28 23:59:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-28 23:59:00,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:59:00,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:59:00,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:59:00,622 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:59:00,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:59:00,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1952411633, now seen corresponding path program 1 times [2023-11-28 23:59:00,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:59:00,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397546968] [2023-11-28 23:59:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:59:00,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:59:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:59:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:59:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:59:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:59:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:59:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:59:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:59:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 23:59:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 23:59:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:59:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 23:59:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:59:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:59:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 23:59:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:59:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-28 23:59:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-28 23:59:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:59:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-28 23:59:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:59:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-28 23:59:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:59:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-28 23:59:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:59:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397546968] [2023-11-28 23:59:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397546968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:59:00,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:59:00,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:59:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556303223] [2023-11-28 23:59:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:59:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:59:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:59:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:59:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:59:00,757 INFO L87 Difference]: Start difference. First operand 63116 states and 108651 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:59:05,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:59:05,732 INFO L93 Difference]: Finished difference Result 118442 states and 207643 transitions. [2023-11-28 23:59:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:59:05,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 186 [2023-11-28 23:59:05,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:59:06,043 INFO L225 Difference]: With dead ends: 118442 [2023-11-28 23:59:06,043 INFO L226 Difference]: Without dead ends: 118202 [2023-11-28 23:59:06,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 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 23:59:06,070 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1743 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:59:06,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 914 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:59:06,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118202 states. [2023-11-28 23:59:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118202 to 118002. [2023-11-28 23:59:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118002 states, 99347 states have (on average 1.6422237208974604) internal successors, (163150), 99355 states have internal predecessors, (163150), 18621 states have call successors, (18621), 29 states have call predecessors, (18621), 33 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2023-11-28 23:59:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118002 states to 118002 states and 202583 transitions. [2023-11-28 23:59:10,769 INFO L78 Accepts]: Start accepts. Automaton has 118002 states and 202583 transitions. Word has length 186 [2023-11-28 23:59:10,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:59:10,769 INFO L495 AbstractCegarLoop]: Abstraction has 118002 states and 202583 transitions. [2023-11-28 23:59:10,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:59:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 118002 states and 202583 transitions. [2023-11-28 23:59:10,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-28 23:59:10,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:59:10,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:59:10,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:59:10,918 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:59:10,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:59:10,918 INFO L85 PathProgramCache]: Analyzing trace with hash 4496176, now seen corresponding path program 1 times [2023-11-28 23:59:10,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:59:10,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581099346] [2023-11-28 23:59:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:59:10,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:59:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:59:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-28 23:59:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:59:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:59:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 23:59:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 23:59:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 23:59:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:59:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:59:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 23:59:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:59:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 23:59:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 23:59:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:59:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-28 23:59:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:59:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:59:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-28 23:59:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:59:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 23:59:11,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:59:11,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581099346] [2023-11-28 23:59:11,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581099346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:59:11,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863458552] [2023-11-28 23:59:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:59:11,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:59:11,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:59:11,442 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:59:11,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:59:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:59:11,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:59:11,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:59:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:59:11,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:59:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-28 23:59:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863458552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:59:12,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:59:12,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2023-11-28 23:59:12,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654110039] [2023-11-28 23:59:12,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:59:12,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-28 23:59:12,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:59:12,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-28 23:59:12,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2023-11-28 23:59:12,357 INFO L87 Difference]: Start difference. First operand 118002 states and 202583 transitions. Second operand has 32 states, 30 states have (on average 8.3) internal successors, (249), 24 states have internal predecessors, (249), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2023-11-28 23:59:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:59:57,221 INFO L93 Difference]: Finished difference Result 706051 states and 1261469 transitions. [2023-11-28 23:59:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2023-11-28 23:59:57,221 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.3) internal successors, (249), 24 states have internal predecessors, (249), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) Word has length 169 [2023-11-28 23:59:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:00,135 INFO L225 Difference]: With dead ends: 706051 [2023-11-29 00:00:00,135 INFO L226 Difference]: Without dead ends: 705814 [2023-11-29 00:00:00,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11617 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4016, Invalid=29290, Unknown=0, NotChecked=0, Total=33306 [2023-11-29 00:00:00,364 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 9524 mSDsluCounter, 14986 mSDsCounter, 0 mSdLazyCounter, 36836 mSolverCounterSat, 3856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9554 SdHoareTripleChecker+Valid, 15641 SdHoareTripleChecker+Invalid, 40692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3856 IncrementalHoareTripleChecker+Valid, 36836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:00,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9554 Valid, 15641 Invalid, 40692 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3856 Valid, 36836 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2023-11-29 00:00:00,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705814 states. [2023-11-29 00:00:25,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705814 to 470191. [2023-11-29 00:00:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470191 states, 395898 states have (on average 1.6426756386746082) internal successors, (650332), 395718 states have internal predecessors, (650332), 74106 states have call successors, (74106), 158 states have call predecessors, (74106), 186 states have return successors, (98136), 74330 states have call predecessors, (98136), 74100 states have call successors, (98136) [2023-11-29 00:00:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470191 states to 470191 states and 822574 transitions. [2023-11-29 00:00:27,638 INFO L78 Accepts]: Start accepts. Automaton has 470191 states and 822574 transitions. Word has length 169 [2023-11-29 00:00:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:27,638 INFO L495 AbstractCegarLoop]: Abstraction has 470191 states and 822574 transitions. [2023-11-29 00:00:27,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 8.3) internal successors, (249), 24 states have internal predecessors, (249), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2023-11-29 00:00:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 470191 states and 822574 transitions. [2023-11-29 00:00:28,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 00:00:28,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:28,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:00:28,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:00:28,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:28,787 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:00:28,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1470326255, now seen corresponding path program 1 times [2023-11-29 00:00:28,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:28,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476735045] [2023-11-29 00:00:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:28,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:00:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 00:00:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:00:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:00:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:00:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 00:00:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 00:00:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:00:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 00:00:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:00:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 00:00:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:00:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:00:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 00:00:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 00:00:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 00:00:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-29 00:00:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 00:00:29,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:29,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476735045] [2023-11-29 00:00:29,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476735045] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:00:29,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264135176] [2023-11-29 00:00:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:29,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:29,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:00:29,072 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:00:29,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:00:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:29,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:00:29,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:00:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 00:00:29,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:00:29,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264135176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:29,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:00:29,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2023-11-29 00:00:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155115751] [2023-11-29 00:00:29,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:29,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:00:29,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:00:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:00:29,511 INFO L87 Difference]: Start difference. First operand 470191 states and 822574 transitions. Second operand has 9 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 00:00:45,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:45,060 INFO L93 Difference]: Finished difference Result 472091 states and 825502 transitions. [2023-11-29 00:00:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:00:45,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 171 [2023-11-29 00:00:45,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:46,643 INFO L225 Difference]: With dead ends: 472091 [2023-11-29 00:00:46,643 INFO L226 Difference]: Without dead ends: 470369 [2023-11-29 00:00:46,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:00:46,767 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 667 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:46,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 4189 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:00:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470369 states. [2023-11-29 00:01:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470369 to 470359. [2023-11-29 00:01:07,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470359 states, 396000 states have (on average 1.64260101010101) internal successors, (650470), 395829 states have internal predecessors, (650470), 74166 states have call successors, (74166), 164 states have call predecessors, (74166), 192 states have return successors, (98221), 74381 states have call predecessors, (98221), 74148 states have call successors, (98221) [2023-11-29 00:01:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470359 states to 470359 states and 822857 transitions. [2023-11-29 00:01:09,354 INFO L78 Accepts]: Start accepts. Automaton has 470359 states and 822857 transitions. Word has length 171 [2023-11-29 00:01:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:01:09,354 INFO L495 AbstractCegarLoop]: Abstraction has 470359 states and 822857 transitions. [2023-11-29 00:01:09,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 00:01:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 470359 states and 822857 transitions. [2023-11-29 00:01:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 00:01:09,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:09,902 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:01:09,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:01:10,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:01:10,102 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:01:10,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:10,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1011008811, now seen corresponding path program 1 times [2023-11-29 00:01:10,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:01:10,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128466460] [2023-11-29 00:01:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:10,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:01:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:01:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 00:01:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:01:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:01:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 00:01:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 00:01:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 00:01:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 00:01:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 00:01:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:01:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 00:01:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 00:01:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:01:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 00:01:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 00:01:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 00:01:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 00:01:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 00:01:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 00:01:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:01:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 00:01:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:01:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128466460] [2023-11-29 00:01:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128466460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:01:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664613745] [2023-11-29 00:01:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:10,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:01:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:01:10,280 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:01:10,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:01:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:10,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:01:10,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:01:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 00:01:10,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:01:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664613745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:01:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:01:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 00:01:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343272320] [2023-11-29 00:01:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:01:10,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:01:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:01:10,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:01:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:01:10,601 INFO L87 Difference]: Start difference. First operand 470359 states and 822857 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 00:01:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:01:26,361 INFO L93 Difference]: Finished difference Result 705543 states and 1238617 transitions. [2023-11-29 00:01:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:01:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 190 [2023-11-29 00:01:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:01:28,196 INFO L225 Difference]: With dead ends: 705543 [2023-11-29 00:01:28,196 INFO L226 Difference]: Without dead ends: 470375 [2023-11-29 00:01:28,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:01:28,608 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 6 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:01:28,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2493 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:01:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470375 states. [2023-11-29 00:01:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470375 to 470359. [2023-11-29 00:01:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470359 states, 396000 states have (on average 1.6425959595959596) internal successors, (650468), 395829 states have internal predecessors, (650468), 74166 states have call successors, (74166), 164 states have call predecessors, (74166), 192 states have return successors, (98221), 74381 states have call predecessors, (98221), 74148 states have call successors, (98221) [2023-11-29 00:01:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470359 states to 470359 states and 822855 transitions. [2023-11-29 00:01:52,179 INFO L78 Accepts]: Start accepts. Automaton has 470359 states and 822855 transitions. Word has length 190 [2023-11-29 00:01:52,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:01:52,179 INFO L495 AbstractCegarLoop]: Abstraction has 470359 states and 822855 transitions. [2023-11-29 00:01:52,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 00:01:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 470359 states and 822855 transitions. [2023-11-29 00:01:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 00:01:52,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:52,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:01:52,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:01:52,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 00:01:52,965 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:01:52,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1151098566, now seen corresponding path program 1 times [2023-11-29 00:01:52,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:01:52,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459763012] [2023-11-29 00:01:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:52,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:01:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:01:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 00:01:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:01:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:01:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 00:01:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 00:01:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 00:01:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:01:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 00:01:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 00:01:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 00:01:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 00:01:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 00:01:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 00:01:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 00:01:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 00:01:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-29 00:01:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:01:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-29 00:01:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-29 00:01:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 00:01:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:01:53,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459763012] [2023-11-29 00:01:53,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459763012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:01:53,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053583974] [2023-11-29 00:01:53,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:53,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:01:53,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:01:53,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:01:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c56699-ac49-4786-9db5-7fc02905cb5f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:01:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:53,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:01:53,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:01:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 00:01:53,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:01:53,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053583974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:01:53,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:01:53,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2023-11-29 00:01:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186670970] [2023-11-29 00:01:53,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:01:53,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:01:53,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:01:53,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:01:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:01:53,641 INFO L87 Difference]: Start difference. First operand 470359 states and 822855 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)