./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC --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 f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:22:26,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:22:26,556 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:22:26,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:22:26,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:22:26,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:22:26,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:22:26,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:22:26,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:22:26,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:22:26,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:22:26,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:22:26,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:22:26,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:22:26,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:22:26,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:22:26,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:22:26,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:22:26,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:22:26,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:22:26,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:22:26,591 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:22:26,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:22:26,591 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:22:26,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:26,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:22:26,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:26,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:22:26,593 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC 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 -> f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 [2024-11-24 00:22:26,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:22:26,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:22:26,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:22:26,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:22:26,940 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:22:26,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2024-11-24 00:22:29,958 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/data/7ed31689d/07e2efd199ff4d54895ecea6f1596e27/FLAGde78ff8fb [2024-11-24 00:22:30,290 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:22:30,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2024-11-24 00:22:30,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/data/7ed31689d/07e2efd199ff4d54895ecea6f1596e27/FLAGde78ff8fb [2024-11-24 00:22:30,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/data/7ed31689d/07e2efd199ff4d54895ecea6f1596e27 [2024-11-24 00:22:30,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:22:30,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:22:30,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:22:30,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:22:30,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:22:30,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:22:30" (1/1) ... [2024-11-24 00:22:30,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67989ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:30, skipping insertion in model container [2024-11-24 00:22:30,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:22:30" (1/1) ... [2024-11-24 00:22:30,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:22:30,798 WARN L250 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_581a5a6f-26da-467f-adb0-a69d8f606851/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2024-11-24 00:22:30,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:22:31,001 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:22:31,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-24 00:22:31,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2024-11-24 00:22:31,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [826] [2024-11-24 00:22:31,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2024-11-24 00:22:31,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1044] [2024-11-24 00:22:31,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1242] [2024-11-24 00:22:31,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1251] [2024-11-24 00:22:31,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2325] [2024-11-24 00:22:31,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2342] [2024-11-24 00:22:31,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2581] [2024-11-24 00:22:31,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2601] [2024-11-24 00:22:31,068 WARN L250 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_581a5a6f-26da-467f-adb0-a69d8f606851/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2024-11-24 00:22:31,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:22:31,163 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:22:31,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31 WrapperNode [2024-11-24 00:22:31,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:22:31,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:22:31,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:22:31,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:22:31,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,273 INFO L138 Inliner]: procedures = 113, calls = 136, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 698 [2024-11-24 00:22:31,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:22:31,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:22:31,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:22:31,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:22:31,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,325 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-24 00:22:31,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,354 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:22:31,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:22:31,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:22:31,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:22:31,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (1/1) ... [2024-11-24 00:22:31,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:31,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:31,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:22:31,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:22:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-24 00:22:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-24 00:22:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-24 00:22:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-24 00:22:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 00:22:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 00:22:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-24 00:22:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-24 00:22:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 00:22:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 00:22:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-24 00:22:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-24 00:22:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 00:22:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:22:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-24 00:22:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 00:22:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 00:22:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-24 00:22:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-24 00:22:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-24 00:22:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:22:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:22:31,717 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:22:31,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:22:32,491 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2024-11-24 00:22:32,491 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:22:32,507 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:22:32,507 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:22:32,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:22:32 BoogieIcfgContainer [2024-11-24 00:22:32,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:22:32,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:22:32,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:22:32,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:22:32,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:22:30" (1/3) ... [2024-11-24 00:22:32,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9062264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:22:32, skipping insertion in model container [2024-11-24 00:22:32,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:31" (2/3) ... [2024-11-24 00:22:32,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9062264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:22:32, skipping insertion in model container [2024-11-24 00:22:32,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:22:32" (3/3) ... [2024-11-24 00:22:32,519 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec11_product36.cil.c [2024-11-24 00:22:32,535 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:22:32,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec11_product36.cil.c that has 15 procedures, 231 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:22:32,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:22:32,629 INFO L333 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, 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;@6abd66e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:22:32,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:22:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 184 states have (on average 1.5543478260869565) internal successors, (286), 187 states have internal predecessors, (286), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:22:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 00:22:32,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:32,645 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:32,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:32,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 499369424, now seen corresponding path program 1 times [2024-11-24 00:22:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643303977] [2024-11-24 00:22:32,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:22:33,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643303977] [2024-11-24 00:22:33,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643303977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:33,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686542226] [2024-11-24 00:22:33,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:33,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:33,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:33,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:33,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:22:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:33,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:22:33,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:22:33,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:22:33,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686542226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:33,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:22:33,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 00:22:33,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760752813] [2024-11-24 00:22:33,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:33,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:33,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:33,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:33,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:22:33,946 INFO L87 Difference]: Start difference. First operand has 231 states, 184 states have (on average 1.5543478260869565) internal successors, (286), 187 states have internal predecessors, (286), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:34,026 INFO L93 Difference]: Finished difference Result 371 states and 549 transitions. [2024-11-24 00:22:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:34,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2024-11-24 00:22:34,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:34,039 INFO L225 Difference]: With dead ends: 371 [2024-11-24 00:22:34,039 INFO L226 Difference]: Without dead ends: 226 [2024-11-24 00:22:34,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:22:34,046 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 1 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:34,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 681 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-24 00:22:34,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 225. [2024-11-24 00:22:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 179 states have (on average 1.541899441340782) internal successors, (276), 181 states have internal predecessors, (276), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:22:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions. [2024-11-24 00:22:34,120 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 78 [2024-11-24 00:22:34,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:34,127 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 337 transitions. [2024-11-24 00:22:34,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions. [2024-11-24 00:22:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 00:22:34,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:34,133 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:34,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:34,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:22:34,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:34,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash 647135369, now seen corresponding path program 1 times [2024-11-24 00:22:34,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:34,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466605777] [2024-11-24 00:22:34,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:34,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:22:34,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:34,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466605777] [2024-11-24 00:22:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466605777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:34,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090853547] [2024-11-24 00:22:34,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:34,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:34,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:34,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:22:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:34,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:22:34,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:22:35,067 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:22:35,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090853547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:35,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:22:35,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 00:22:35,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901626214] [2024-11-24 00:22:35,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:35,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:22:35,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:35,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:22:35,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:35,072 INFO L87 Difference]: Start difference. First operand 225 states and 337 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:35,187 INFO L93 Difference]: Finished difference Result 443 states and 667 transitions. [2024-11-24 00:22:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:22:35,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2024-11-24 00:22:35,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:35,193 INFO L225 Difference]: With dead ends: 443 [2024-11-24 00:22:35,195 INFO L226 Difference]: Without dead ends: 227 [2024-11-24 00:22:35,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:35,197 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:35,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1301 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:22:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-24 00:22:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-24 00:22:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 180 states have (on average 1.538888888888889) internal successors, (277), 183 states have internal predecessors, (277), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (32), 29 states have call predecessors, (32), 30 states have call successors, (32) [2024-11-24 00:22:35,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 340 transitions. [2024-11-24 00:22:35,229 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 340 transitions. Word has length 82 [2024-11-24 00:22:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:35,231 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 340 transitions. [2024-11-24 00:22:35,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 340 transitions. [2024-11-24 00:22:35,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-24 00:22:35,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:35,237 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:35,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:22:35,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:35,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:35,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:35,439 INFO L85 PathProgramCache]: Analyzing trace with hash 557437681, now seen corresponding path program 1 times [2024-11-24 00:22:35,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:35,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37777666] [2024-11-24 00:22:35,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:35,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:22:35,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:35,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37777666] [2024-11-24 00:22:35,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37777666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:35,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:35,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:22:35,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031622786] [2024-11-24 00:22:35,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:35,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:22:35,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:35,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:22:35,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:35,757 INFO L87 Difference]: Start difference. First operand 227 states and 340 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:35,842 INFO L93 Difference]: Finished difference Result 435 states and 655 transitions. [2024-11-24 00:22:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:22:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-24 00:22:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:35,845 INFO L225 Difference]: With dead ends: 435 [2024-11-24 00:22:35,846 INFO L226 Difference]: Without dead ends: 227 [2024-11-24 00:22:35,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:35,848 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 2 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:35,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1305 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-24 00:22:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-24 00:22:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 180 states have (on average 1.538888888888889) internal successors, (277), 183 states have internal predecessors, (277), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (31), 29 states have call predecessors, (31), 30 states have call successors, (31) [2024-11-24 00:22:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2024-11-24 00:22:35,870 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 83 [2024-11-24 00:22:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:35,871 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2024-11-24 00:22:35,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2024-11-24 00:22:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 00:22:35,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:35,874 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:35,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:22:35,874 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:35,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:35,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1309022697, now seen corresponding path program 2 times [2024-11-24 00:22:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:35,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545369641] [2024-11-24 00:22:35,877 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:22:35,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:35,928 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:22:35,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:22:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 00:22:36,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:36,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545369641] [2024-11-24 00:22:36,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545369641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:36,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:36,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:22:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736989849] [2024-11-24 00:22:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:36,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:22:36,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:36,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:22:36,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:36,036 INFO L87 Difference]: Start difference. First operand 227 states and 339 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:36,112 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2024-11-24 00:22:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:22:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2024-11-24 00:22:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:36,117 INFO L225 Difference]: With dead ends: 488 [2024-11-24 00:22:36,117 INFO L226 Difference]: Without dead ends: 364 [2024-11-24 00:22:36,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:22:36,119 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 308 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:36,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1221 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-24 00:22:36,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-24 00:22:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 296 states have (on average 1.6013513513513513) internal successors, (474), 301 states have internal predecessors, (474), 45 states have call successors, (45), 24 states have call predecessors, (45), 22 states have return successors, (45), 38 states have call predecessors, (45), 44 states have call successors, (45) [2024-11-24 00:22:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 564 transitions. [2024-11-24 00:22:36,149 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 564 transitions. Word has length 84 [2024-11-24 00:22:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:36,150 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 564 transitions. [2024-11-24 00:22:36,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 564 transitions. [2024-11-24 00:22:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 00:22:36,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:36,154 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:36,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:22:36,156 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:36,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:36,157 INFO L85 PathProgramCache]: Analyzing trace with hash -791311454, now seen corresponding path program 1 times [2024-11-24 00:22:36,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:36,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846216531] [2024-11-24 00:22:36,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:36,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:22:36,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:36,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846216531] [2024-11-24 00:22:36,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846216531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:36,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:36,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:22:36,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903026459] [2024-11-24 00:22:36,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:36,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:22:36,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:36,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:22:36,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:36,407 INFO L87 Difference]: Start difference. First operand 364 states and 564 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:36,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:36,495 INFO L93 Difference]: Finished difference Result 711 states and 1108 transitions. [2024-11-24 00:22:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:22:36,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2024-11-24 00:22:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:36,499 INFO L225 Difference]: With dead ends: 711 [2024-11-24 00:22:36,499 INFO L226 Difference]: Without dead ends: 366 [2024-11-24 00:22:36,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:36,504 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 1 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:36,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1308 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-24 00:22:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-11-24 00:22:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 297 states have (on average 1.5993265993265993) internal successors, (475), 303 states have internal predecessors, (475), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (47), 38 states have call predecessors, (47), 44 states have call successors, (47) [2024-11-24 00:22:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 567 transitions. [2024-11-24 00:22:36,544 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 567 transitions. Word has length 89 [2024-11-24 00:22:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:36,544 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 567 transitions. [2024-11-24 00:22:36,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 567 transitions. [2024-11-24 00:22:36,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 00:22:36,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:36,550 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:36,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:22:36,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:36,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:36,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1297734817, now seen corresponding path program 1 times [2024-11-24 00:22:36,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794803059] [2024-11-24 00:22:36,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:36,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:36,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794803059] [2024-11-24 00:22:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794803059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:36,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:36,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953439223] [2024-11-24 00:22:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:36,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:36,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:36,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:36,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:36,648 INFO L87 Difference]: Start difference. First operand 366 states and 567 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:36,691 INFO L93 Difference]: Finished difference Result 820 states and 1304 transitions. [2024-11-24 00:22:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-24 00:22:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:36,696 INFO L225 Difference]: With dead ends: 820 [2024-11-24 00:22:36,696 INFO L226 Difference]: Without dead ends: 478 [2024-11-24 00:22:36,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:36,716 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 92 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:36,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 678 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-24 00:22:36,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 468. [2024-11-24 00:22:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 393 states have (on average 1.6513994910941476) internal successors, (649), 399 states have internal predecessors, (649), 51 states have call successors, (51), 24 states have call predecessors, (51), 23 states have return successors, (53), 44 states have call predecessors, (53), 50 states have call successors, (53) [2024-11-24 00:22:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 753 transitions. [2024-11-24 00:22:36,758 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 753 transitions. Word has length 90 [2024-11-24 00:22:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:36,759 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 753 transitions. [2024-11-24 00:22:36,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 753 transitions. [2024-11-24 00:22:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 00:22:36,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:36,762 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:36,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:22:36,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:36,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash 254487193, now seen corresponding path program 1 times [2024-11-24 00:22:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:36,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753496662] [2024-11-24 00:22:36,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:36,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:36,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:36,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753496662] [2024-11-24 00:22:36,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753496662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:36,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381584441] [2024-11-24 00:22:36,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:36,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:36,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:36,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:22:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:37,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:22:37,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:37,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381584441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:22:37,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:22:37,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 00:22:37,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852513043] [2024-11-24 00:22:37,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:37,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:22:37,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:37,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:22:37,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:22:37,477 INFO L87 Difference]: Start difference. First operand 468 states and 753 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:22:37,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:37,617 INFO L93 Difference]: Finished difference Result 1112 states and 1830 transitions. [2024-11-24 00:22:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:22:37,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 86 [2024-11-24 00:22:37,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:37,629 INFO L225 Difference]: With dead ends: 1112 [2024-11-24 00:22:37,630 INFO L226 Difference]: Without dead ends: 916 [2024-11-24 00:22:37,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:22:37,633 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 367 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:37,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1437 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:22:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-11-24 00:22:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 888. [2024-11-24 00:22:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 789 states have (on average 1.7198986058301649) internal successors, (1357), 795 states have internal predecessors, (1357), 75 states have call successors, (75), 24 states have call predecessors, (75), 23 states have return successors, (77), 68 states have call predecessors, (77), 74 states have call successors, (77) [2024-11-24 00:22:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1509 transitions. [2024-11-24 00:22:37,699 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1509 transitions. Word has length 86 [2024-11-24 00:22:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:37,699 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1509 transitions. [2024-11-24 00:22:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-24 00:22:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1509 transitions. [2024-11-24 00:22:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:22:37,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:37,704 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:37,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:37,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 00:22:37,909 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:37,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 970046292, now seen corresponding path program 1 times [2024-11-24 00:22:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:37,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069548854] [2024-11-24 00:22:37,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:37,997 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:37,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:37,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069548854] [2024-11-24 00:22:37,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069548854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:37,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:37,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:37,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883940160] [2024-11-24 00:22:37,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:37,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:37,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:38,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:38,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,000 INFO L87 Difference]: Start difference. First operand 888 states and 1509 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:38,060 INFO L93 Difference]: Finished difference Result 2090 states and 3612 transitions. [2024-11-24 00:22:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-11-24 00:22:38,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:38,070 INFO L225 Difference]: With dead ends: 2090 [2024-11-24 00:22:38,070 INFO L226 Difference]: Without dead ends: 1349 [2024-11-24 00:22:38,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,073 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 90 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:38,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-11-24 00:22:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1339. [2024-11-24 00:22:38,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1210 states have (on average 1.7504132231404959) internal successors, (2118), 1216 states have internal predecessors, (2118), 105 states have call successors, (105), 24 states have call predecessors, (105), 23 states have return successors, (107), 98 states have call predecessors, (107), 104 states have call successors, (107) [2024-11-24 00:22:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2330 transitions. [2024-11-24 00:22:38,160 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2330 transitions. Word has length 95 [2024-11-24 00:22:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:38,161 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 2330 transitions. [2024-11-24 00:22:38,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2330 transitions. [2024-11-24 00:22:38,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:22:38,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:38,170 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:38,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:22:38,170 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:38,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1738748651, now seen corresponding path program 1 times [2024-11-24 00:22:38,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:38,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256048345] [2024-11-24 00:22:38,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:38,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:38,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:38,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256048345] [2024-11-24 00:22:38,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256048345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:38,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:38,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:38,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891781962] [2024-11-24 00:22:38,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:38,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:38,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:38,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,272 INFO L87 Difference]: Start difference. First operand 1339 states and 2330 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:38,346 INFO L93 Difference]: Finished difference Result 3283 states and 5769 transitions. [2024-11-24 00:22:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-24 00:22:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:38,360 INFO L225 Difference]: With dead ends: 3283 [2024-11-24 00:22:38,361 INFO L226 Difference]: Without dead ends: 2034 [2024-11-24 00:22:38,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,366 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 88 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:38,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2024-11-24 00:22:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 2024. [2024-11-24 00:22:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 1853 states have (on average 1.7522935779816513) internal successors, (3247), 1859 states have internal predecessors, (3247), 147 states have call successors, (147), 24 states have call predecessors, (147), 23 states have return successors, (149), 140 states have call predecessors, (149), 146 states have call successors, (149) [2024-11-24 00:22:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3543 transitions. [2024-11-24 00:22:38,489 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3543 transitions. Word has length 96 [2024-11-24 00:22:38,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:38,489 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3543 transitions. [2024-11-24 00:22:38,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3543 transitions. [2024-11-24 00:22:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:22:38,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:38,499 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:38,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:22:38,499 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:38,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:38,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1295095422, now seen corresponding path program 1 times [2024-11-24 00:22:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479542288] [2024-11-24 00:22:38,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:38,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:38,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:38,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479542288] [2024-11-24 00:22:38,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479542288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:38,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:38,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:38,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988696307] [2024-11-24 00:22:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:38,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:38,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:38,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,614 INFO L87 Difference]: Start difference. First operand 2024 states and 3543 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:38,757 INFO L93 Difference]: Finished difference Result 5004 states and 8837 transitions. [2024-11-24 00:22:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:38,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-24 00:22:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:38,784 INFO L225 Difference]: With dead ends: 5004 [2024-11-24 00:22:38,785 INFO L226 Difference]: Without dead ends: 3148 [2024-11-24 00:22:38,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:38,797 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 86 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:38,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 674 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:38,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-11-24 00:22:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3138. [2024-11-24 00:22:38,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 2898 states have (on average 1.7494824016563146) internal successors, (5070), 2904 states have internal predecessors, (5070), 216 states have call successors, (216), 24 states have call predecessors, (216), 23 states have return successors, (218), 209 states have call predecessors, (218), 215 states have call successors, (218) [2024-11-24 00:22:38,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 5504 transitions. [2024-11-24 00:22:38,987 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 5504 transitions. Word has length 97 [2024-11-24 00:22:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:38,988 INFO L471 AbstractCegarLoop]: Abstraction has 3138 states and 5504 transitions. [2024-11-24 00:22:38,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 5504 transitions. [2024-11-24 00:22:39,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:22:39,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:39,002 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:39,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:22:39,002 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:39,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1369352370, now seen corresponding path program 2 times [2024-11-24 00:22:39,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:39,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282326528] [2024-11-24 00:22:39,003 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:22:39,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:39,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:22:39,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:22:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 00:22:39,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:39,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282326528] [2024-11-24 00:22:39,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282326528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:39,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:39,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:22:39,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137551035] [2024-11-24 00:22:39,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:39,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:22:39,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:39,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:22:39,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:22:39,158 INFO L87 Difference]: Start difference. First operand 3138 states and 5504 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:39,354 INFO L93 Difference]: Finished difference Result 5563 states and 9760 transitions. [2024-11-24 00:22:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:22:39,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 98 [2024-11-24 00:22:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:39,387 INFO L225 Difference]: With dead ends: 5563 [2024-11-24 00:22:39,387 INFO L226 Difference]: Without dead ends: 5437 [2024-11-24 00:22:39,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:22:39,392 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 305 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:39,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1218 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-11-24 00:22:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5311. [2024-11-24 00:22:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 4935 states have (on average 1.7596757852077) internal successors, (8684), 4941 states have internal predecessors, (8684), 348 states have call successors, (348), 28 states have call predecessors, (348), 27 states have return successors, (350), 341 states have call predecessors, (350), 347 states have call successors, (350) [2024-11-24 00:22:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 9382 transitions. [2024-11-24 00:22:39,709 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 9382 transitions. Word has length 98 [2024-11-24 00:22:39,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:39,710 INFO L471 AbstractCegarLoop]: Abstraction has 5311 states and 9382 transitions. [2024-11-24 00:22:39,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:22:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 9382 transitions. [2024-11-24 00:22:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:22:39,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:39,732 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:39,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:22:39,733 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:39,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash 697029866, now seen corresponding path program 1 times [2024-11-24 00:22:39,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:39,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684182150] [2024-11-24 00:22:39,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:39,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:22:39,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:39,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684182150] [2024-11-24 00:22:39,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684182150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:39,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459561956] [2024-11-24 00:22:39,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:39,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:39,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:39,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:39,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:22:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:40,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:22:40,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 00:22:40,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:22:40,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459561956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:40,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:22:40,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-24 00:22:40,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598892577] [2024-11-24 00:22:40,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:40,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:40,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:40,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:40,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:40,367 INFO L87 Difference]: Start difference. First operand 5311 states and 9382 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:40,600 INFO L93 Difference]: Finished difference Result 9171 states and 16220 transitions. [2024-11-24 00:22:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:40,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-24 00:22:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:40,632 INFO L225 Difference]: With dead ends: 9171 [2024-11-24 00:22:40,632 INFO L226 Difference]: Without dead ends: 5321 [2024-11-24 00:22:40,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:40,645 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 85 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:40,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 772 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5321 states. [2024-11-24 00:22:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5321 to 5311. [2024-11-24 00:22:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 4935 states have (on average 1.75177304964539) internal successors, (8645), 4941 states have internal predecessors, (8645), 348 states have call successors, (348), 28 states have call predecessors, (348), 27 states have return successors, (350), 341 states have call predecessors, (350), 347 states have call successors, (350) [2024-11-24 00:22:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 9343 transitions. [2024-11-24 00:22:40,979 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 9343 transitions. Word has length 103 [2024-11-24 00:22:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:40,979 INFO L471 AbstractCegarLoop]: Abstraction has 5311 states and 9343 transitions. [2024-11-24 00:22:40,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 9343 transitions. [2024-11-24 00:22:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:22:40,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:40,998 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:41,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:41,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 00:22:41,199 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:41,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash 289161845, now seen corresponding path program 1 times [2024-11-24 00:22:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:41,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670298605] [2024-11-24 00:22:41,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:41,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:41,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670298605] [2024-11-24 00:22:41,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670298605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:41,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:41,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:41,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396373453] [2024-11-24 00:22:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:41,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:41,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:41,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:41,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:41,306 INFO L87 Difference]: Start difference. First operand 5311 states and 9343 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:41,535 INFO L93 Difference]: Finished difference Result 13714 states and 24301 transitions. [2024-11-24 00:22:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:41,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-11-24 00:22:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:41,602 INFO L225 Difference]: With dead ends: 13714 [2024-11-24 00:22:41,602 INFO L226 Difference]: Without dead ends: 8833 [2024-11-24 00:22:41,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:41,619 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 84 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:41,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2024-11-24 00:22:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8823. [2024-11-24 00:22:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8823 states, 8225 states have (on average 1.7444376899696048) internal successors, (14348), 8231 states have internal predecessors, (14348), 570 states have call successors, (570), 28 states have call predecessors, (570), 27 states have return successors, (572), 563 states have call predecessors, (572), 569 states have call successors, (572) [2024-11-24 00:22:42,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8823 states to 8823 states and 15490 transitions. [2024-11-24 00:22:42,088 INFO L78 Accepts]: Start accepts. Automaton has 8823 states and 15490 transitions. Word has length 99 [2024-11-24 00:22:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:42,088 INFO L471 AbstractCegarLoop]: Abstraction has 8823 states and 15490 transitions. [2024-11-24 00:22:42,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 8823 states and 15490 transitions. [2024-11-24 00:22:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:22:42,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:42,121 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:42,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:22:42,122 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:42,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 231115962, now seen corresponding path program 1 times [2024-11-24 00:22:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697937788] [2024-11-24 00:22:42,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:42,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:42,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697937788] [2024-11-24 00:22:42,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697937788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:42,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:42,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:42,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531561919] [2024-11-24 00:22:42,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:42,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:42,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:42,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:42,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:42,242 INFO L87 Difference]: Start difference. First operand 8823 states and 15490 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:42,634 INFO L93 Difference]: Finished difference Result 22595 states and 40079 transitions. [2024-11-24 00:22:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2024-11-24 00:22:42,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:42,702 INFO L225 Difference]: With dead ends: 22595 [2024-11-24 00:22:42,702 INFO L226 Difference]: Without dead ends: 14625 [2024-11-24 00:22:42,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:42,726 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 82 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:42,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2024-11-24 00:22:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 14615. [2024-11-24 00:22:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14615 states, 13600 states have (on average 1.7438970588235294) internal successors, (23717), 13606 states have internal predecessors, (23717), 987 states have call successors, (987), 28 states have call predecessors, (987), 27 states have return successors, (989), 980 states have call predecessors, (989), 986 states have call successors, (989) [2024-11-24 00:22:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 25693 transitions. [2024-11-24 00:22:43,503 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 25693 transitions. Word has length 100 [2024-11-24 00:22:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:43,504 INFO L471 AbstractCegarLoop]: Abstraction has 14615 states and 25693 transitions. [2024-11-24 00:22:43,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 25693 transitions. [2024-11-24 00:22:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:22:43,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:43,562 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:43,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:22:43,562 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:43,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:43,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1891727766, now seen corresponding path program 1 times [2024-11-24 00:22:43,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:43,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070449419] [2024-11-24 00:22:43,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:22:43,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:43,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070449419] [2024-11-24 00:22:43,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070449419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:43,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642034574] [2024-11-24 00:22:43,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:43,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:43,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:43,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:43,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:22:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:44,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:22:44,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:22:44,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:22:44,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642034574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:44,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:22:44,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-24 00:22:44,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590897607] [2024-11-24 00:22:44,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:44,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:44,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:44,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:44,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:44,174 INFO L87 Difference]: Start difference. First operand 14615 states and 25693 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:44,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:44,575 INFO L93 Difference]: Finished difference Result 26761 states and 47212 transitions. [2024-11-24 00:22:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:44,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 107 [2024-11-24 00:22:44,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:44,640 INFO L225 Difference]: With dead ends: 26761 [2024-11-24 00:22:44,640 INFO L226 Difference]: Without dead ends: 14625 [2024-11-24 00:22:44,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:44,675 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 89 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:44,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 764 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2024-11-24 00:22:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 14615. [2024-11-24 00:22:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14615 states, 13600 states have (on average 1.7336764705882353) internal successors, (23578), 13606 states have internal predecessors, (23578), 987 states have call successors, (987), 28 states have call predecessors, (987), 27 states have return successors, (989), 980 states have call predecessors, (989), 986 states have call successors, (989) [2024-11-24 00:22:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 25554 transitions. [2024-11-24 00:22:45,311 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 25554 transitions. Word has length 107 [2024-11-24 00:22:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:45,311 INFO L471 AbstractCegarLoop]: Abstraction has 14615 states and 25554 transitions. [2024-11-24 00:22:45,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:45,311 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 25554 transitions. [2024-11-24 00:22:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:22:45,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:45,443 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:45,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:22:45,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:22:45,644 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:45,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1269107063, now seen corresponding path program 1 times [2024-11-24 00:22:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:45,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988895692] [2024-11-24 00:22:45,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:45,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:45,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988895692] [2024-11-24 00:22:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988895692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952825638] [2024-11-24 00:22:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:45,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:45,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:45,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:45,755 INFO L87 Difference]: Start difference. First operand 14615 states and 25554 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:46,509 INFO L93 Difference]: Finished difference Result 39753 states and 69931 transitions. [2024-11-24 00:22:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:46,510 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2024-11-24 00:22:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:46,652 INFO L225 Difference]: With dead ends: 39753 [2024-11-24 00:22:46,652 INFO L226 Difference]: Without dead ends: 26291 [2024-11-24 00:22:46,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:46,699 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 80 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:46,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26291 states. [2024-11-24 00:22:47,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26291 to 26281. [2024-11-24 00:22:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26281 states, 24462 states have (on average 1.7245523669364728) internal successors, (42186), 24468 states have internal predecessors, (42186), 1791 states have call successors, (1791), 28 states have call predecessors, (1791), 27 states have return successors, (1793), 1784 states have call predecessors, (1793), 1790 states have call successors, (1793) [2024-11-24 00:22:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26281 states to 26281 states and 45770 transitions. [2024-11-24 00:22:47,824 INFO L78 Accepts]: Start accepts. Automaton has 26281 states and 45770 transitions. Word has length 101 [2024-11-24 00:22:47,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:47,826 INFO L471 AbstractCegarLoop]: Abstraction has 26281 states and 45770 transitions. [2024-11-24 00:22:47,826 INFO L472 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 26281 states and 45770 transitions. [2024-11-24 00:22:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:22:47,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:47,900 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:47,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:22:47,900 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:47,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:47,902 INFO L85 PathProgramCache]: Analyzing trace with hash 644668364, now seen corresponding path program 1 times [2024-11-24 00:22:47,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:47,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512630977] [2024-11-24 00:22:47,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:47,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:47,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:47,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512630977] [2024-11-24 00:22:47,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512630977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:47,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:47,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:47,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973721453] [2024-11-24 00:22:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:47,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:47,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:47,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:47,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:47,995 INFO L87 Difference]: Start difference. First operand 26281 states and 45770 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:48,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:48,928 INFO L93 Difference]: Finished difference Result 62966 states and 109244 transitions. [2024-11-24 00:22:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:48,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2024-11-24 00:22:48,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:49,073 INFO L225 Difference]: With dead ends: 62966 [2024-11-24 00:22:49,074 INFO L226 Difference]: Without dead ends: 39324 [2024-11-24 00:22:49,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:49,109 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 78 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:49,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 636 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39324 states. [2024-11-24 00:22:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39324 to 39314. [2024-11-24 00:22:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39314 states, 37495 states have (on average 1.6958261101480196) internal successors, (63585), 37501 states have internal predecessors, (63585), 1791 states have call successors, (1791), 28 states have call predecessors, (1791), 27 states have return successors, (1793), 1784 states have call predecessors, (1793), 1790 states have call successors, (1793) [2024-11-24 00:22:50,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39314 states to 39314 states and 67169 transitions. [2024-11-24 00:22:50,612 INFO L78 Accepts]: Start accepts. Automaton has 39314 states and 67169 transitions. Word has length 102 [2024-11-24 00:22:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:50,613 INFO L471 AbstractCegarLoop]: Abstraction has 39314 states and 67169 transitions. [2024-11-24 00:22:50,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 39314 states and 67169 transitions. [2024-11-24 00:22:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:22:50,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:50,696 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:50,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:22:50,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:50,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1561394439, now seen corresponding path program 1 times [2024-11-24 00:22:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190920197] [2024-11-24 00:22:50,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:50,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:50,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190920197] [2024-11-24 00:22:50,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190920197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:50,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:50,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:50,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643664879] [2024-11-24 00:22:50,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:50,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:50,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:50,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:50,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:50,817 INFO L87 Difference]: Start difference. First operand 39314 states and 67169 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:52,698 INFO L93 Difference]: Finished difference Result 110052 states and 188386 transitions. [2024-11-24 00:22:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:52,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-24 00:22:52,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:52,992 INFO L225 Difference]: With dead ends: 110052 [2024-11-24 00:22:52,992 INFO L226 Difference]: Without dead ends: 73887 [2024-11-24 00:22:53,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:53,044 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 76 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:53,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 674 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73887 states. [2024-11-24 00:22:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73887 to 73877. [2024-11-24 00:22:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73877 states, 70483 states have (on average 1.6798376913581998) internal successors, (118400), 70489 states have internal predecessors, (118400), 3366 states have call successors, (3366), 28 states have call predecessors, (3366), 27 states have return successors, (3368), 3359 states have call predecessors, (3368), 3365 states have call successors, (3368) [2024-11-24 00:22:55,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73877 states to 73877 states and 125134 transitions. [2024-11-24 00:22:56,009 INFO L78 Accepts]: Start accepts. Automaton has 73877 states and 125134 transitions. Word has length 103 [2024-11-24 00:22:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:56,009 INFO L471 AbstractCegarLoop]: Abstraction has 73877 states and 125134 transitions. [2024-11-24 00:22:56,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 73877 states and 125134 transitions. [2024-11-24 00:22:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:22:56,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:56,098 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:56,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:22:56,100 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:56,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:56,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1497449618, now seen corresponding path program 1 times [2024-11-24 00:22:56,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:56,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014627180] [2024-11-24 00:22:56,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:56,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:56,194 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:22:56,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:56,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014627180] [2024-11-24 00:22:56,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014627180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:56,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:56,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:22:56,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796715644] [2024-11-24 00:22:56,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:56,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:22:56,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:56,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:22:56,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:22:56,198 INFO L87 Difference]: Start difference. First operand 73877 states and 125134 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:22:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:59,373 INFO L93 Difference]: Finished difference Result 211194 states and 357909 transitions. [2024-11-24 00:22:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:22:59,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-11-24 00:22:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:59,934 INFO L225 Difference]: With dead ends: 211194 [2024-11-24 00:22:59,934 INFO L226 Difference]: Without dead ends: 141285 [2024-11-24 00:23:00,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:23:00,025 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 74 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:00,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141285 states. [2024-11-24 00:23:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141285 to 141275. [2024-11-24 00:23:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141275 states, 134767 states have (on average 1.661897942374617) internal successors, (223969), 134773 states have internal predecessors, (223969), 6480 states have call successors, (6480), 28 states have call predecessors, (6480), 27 states have return successors, (6482), 6473 states have call predecessors, (6482), 6479 states have call successors, (6482) [2024-11-24 00:23:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141275 states to 141275 states and 236931 transitions. [2024-11-24 00:23:04,713 INFO L78 Accepts]: Start accepts. Automaton has 141275 states and 236931 transitions. Word has length 104 [2024-11-24 00:23:04,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:04,713 INFO L471 AbstractCegarLoop]: Abstraction has 141275 states and 236931 transitions. [2024-11-24 00:23:04,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:23:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 141275 states and 236931 transitions. [2024-11-24 00:23:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:23:04,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:04,863 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:04,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:23:04,863 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:04,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:04,865 INFO L85 PathProgramCache]: Analyzing trace with hash 436173896, now seen corresponding path program 1 times [2024-11-24 00:23:04,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:04,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318109754] [2024-11-24 00:23:04,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:04,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 00:23:05,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318109754] [2024-11-24 00:23:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318109754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:23:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182454428] [2024-11-24 00:23:05,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:05,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:23:05,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:23:05,078 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:23:05,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:23:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:05,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:23:05,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:23:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:23:05,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:23:05,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182454428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:05,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:23:05,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-24 00:23:05,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548654271] [2024-11-24 00:23:05,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:05,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:23:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:05,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:23:05,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:23:05,534 INFO L87 Difference]: Start difference. First operand 141275 states and 236931 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:23:07,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:07,139 INFO L93 Difference]: Finished difference Result 141473 states and 237206 transitions. [2024-11-24 00:23:07,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:23:07,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 108 [2024-11-24 00:23:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:07,396 INFO L225 Difference]: With dead ends: 141473 [2024-11-24 00:23:07,396 INFO L226 Difference]: Without dead ends: 72336 [2024-11-24 00:23:07,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:23:07,501 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 309 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 678 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 [2024-11-24 00:23:07,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 678 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72336 states. [2024-11-24 00:23:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72336 to 72332. [2024-11-24 00:23:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72332 states, 68966 states have (on average 1.6441724907925646) internal successors, (113392), 68971 states have internal predecessors, (113392), 3342 states have call successors, (3342), 25 states have call predecessors, (3342), 23 states have return successors, (3342), 3335 states have call predecessors, (3342), 3341 states have call successors, (3342) [2024-11-24 00:23:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72332 states to 72332 states and 120076 transitions. [2024-11-24 00:23:09,528 INFO L78 Accepts]: Start accepts. Automaton has 72332 states and 120076 transitions. Word has length 108 [2024-11-24 00:23:09,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:09,529 INFO L471 AbstractCegarLoop]: Abstraction has 72332 states and 120076 transitions. [2024-11-24 00:23:09,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 00:23:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 72332 states and 120076 transitions. [2024-11-24 00:23:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:23:09,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:09,595 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:09,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:23:09,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_581a5a6f-26da-467f-adb0-a69d8f606851/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:23:09,800 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:09,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:09,801 INFO L85 PathProgramCache]: Analyzing trace with hash -670485125, now seen corresponding path program 1 times [2024-11-24 00:23:09,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:09,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699324172] [2024-11-24 00:23:09,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:09,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:23:09,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:09,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699324172] [2024-11-24 00:23:09,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699324172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:09,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:09,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:23:09,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19062767] [2024-11-24 00:23:09,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:09,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:23:09,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:09,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:23:09,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:23:09,880 INFO L87 Difference]: Start difference. First operand 72332 states and 120076 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:23:12,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:12,110 INFO L93 Difference]: Finished difference Result 138799 states and 230035 transitions. [2024-11-24 00:23:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:23:12,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 105 [2024-11-24 00:23:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:12,612 INFO L225 Difference]: With dead ends: 138799 [2024-11-24 00:23:12,612 INFO L226 Difference]: Without dead ends: 138603 [2024-11-24 00:23:12,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:23:12,644 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 69 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:12,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 668 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138603 states. [2024-11-24 00:23:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138603 to 138593. [2024-11-24 00:23:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138593 states, 132116 states have (on average 1.6251021829301522) internal successors, (214702), 132121 states have internal predecessors, (214702), 6453 states have call successors, (6453), 25 states have call predecessors, (6453), 23 states have return successors, (6453), 6446 states have call predecessors, (6453), 6452 states have call successors, (6453) [2024-11-24 00:23:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138593 states to 138593 states and 227608 transitions. [2024-11-24 00:23:16,246 INFO L78 Accepts]: Start accepts. Automaton has 138593 states and 227608 transitions. Word has length 105 [2024-11-24 00:23:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:16,246 INFO L471 AbstractCegarLoop]: Abstraction has 138593 states and 227608 transitions. [2024-11-24 00:23:16,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:23:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 138593 states and 227608 transitions. [2024-11-24 00:23:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:23:16,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:16,332 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:16,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:23:16,332 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:16,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2079718981, now seen corresponding path program 1 times [2024-11-24 00:23:16,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:16,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153801346] [2024-11-24 00:23:16,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:16,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-24 00:23:16,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:16,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153801346] [2024-11-24 00:23:16,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153801346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:16,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:16,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:23:16,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788896969] [2024-11-24 00:23:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:16,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:23:16,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:16,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:23:16,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:23:16,767 INFO L87 Difference]: Start difference. First operand 138593 states and 227608 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-24 00:23:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:20,059 INFO L93 Difference]: Finished difference Result 138933 states and 228111 transitions. [2024-11-24 00:23:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:23:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 109 [2024-11-24 00:23:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:20,516 INFO L225 Difference]: With dead ends: 138933 [2024-11-24 00:23:20,517 INFO L226 Difference]: Without dead ends: 138807 [2024-11-24 00:23:20,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:23:20,547 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 561 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:20,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 3484 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:23:20,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138807 states.