./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/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_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1 --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-d790fec [2024-12-02 06:19:10,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:19:10,843 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:19:10,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:19:10,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:19:10,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:19:10,873 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:19:10,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:19:10,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:19:10,873 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:19:10,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:19:10,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:19:10,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:19:10,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:19:10,874 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:19:10,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:19:10,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:19:10,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:19:10,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:19:10,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:19:10,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:19:10,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:19:10,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:19:10,877 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_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 06:19:11,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:19:11,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:19:11,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:19:11,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:19:11,129 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:19:11,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2024-12-02 06:19:13,819 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/data/85c93291d/334e4dfed5c1405699087696e56b6609/FLAGedcb0bf2d [2024-12-02 06:19:14,099 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:19:14,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2024-12-02 06:19:14,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/data/85c93291d/334e4dfed5c1405699087696e56b6609/FLAGedcb0bf2d [2024-12-02 06:19:14,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/data/85c93291d/334e4dfed5c1405699087696e56b6609 [2024-12-02 06:19:14,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:19:14,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:19:14,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:19:14,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:19:14,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:19:14,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:19:14" (1/1) ... [2024-12-02 06:19:14,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4392b69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:14, skipping insertion in model container [2024-12-02 06:19:14,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:19:14" (1/1) ... [2024-12-02 06:19:14,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:19:14,777 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_f05d4586-31e4-4749-b24d-fe9be0797449/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2024-12-02 06:19:14,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:19:14,896 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:19:14,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-12-02 06:19:14,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2024-12-02 06:19:14,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [826] [2024-12-02 06:19:14,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2024-12-02 06:19:14,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1044] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1242] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1251] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2325] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2342] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2581] [2024-12-02 06:19:14,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2601] [2024-12-02 06:19:14,957 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_f05d4586-31e4-4749-b24d-fe9be0797449/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2024-12-02 06:19:14,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:19:15,027 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:19:15,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15 WrapperNode [2024-12-02 06:19:15,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:19:15,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:19:15,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:19:15,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:19:15,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,077 INFO L138 Inliner]: procedures = 113, calls = 136, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 698 [2024-12-02 06:19:15,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:19:15,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:19:15,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:19:15,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:19:15,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,106 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]. [2024-12-02 06:19:15,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:19:15,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:19:15,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:19:15,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:19:15,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (1/1) ... [2024-12-02 06:19:15,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:19:15,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:15,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:19:15,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-12-02 06:19:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-12-02 06:19:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-12-02 06:19:15,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-12-02 06:19:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:19:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:19:15,354 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:19:15,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:19:15,966 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2024-12-02 06:19:15,967 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:19:15,983 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:19:15,983 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:19:15,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:19:15 BoogieIcfgContainer [2024-12-02 06:19:15,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:19:15,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:19:15,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:19:15,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:19:15,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:19:14" (1/3) ... [2024-12-02 06:19:15,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1449bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:19:15, skipping insertion in model container [2024-12-02 06:19:15,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:15" (2/3) ... [2024-12-02 06:19:15,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1449bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:19:15, skipping insertion in model container [2024-12-02 06:19:15,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:19:15" (3/3) ... [2024-12-02 06:19:15,993 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec11_product36.cil.c [2024-12-02 06:19:16,005 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:19:16,008 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. [2024-12-02 06:19:16,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:19:16,080 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;@7d50254e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:19:16,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:19:16,085 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) [2024-12-02 06:19:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 06:19:16,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:16,097 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] [2024-12-02 06:19:16,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:16,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash 499369424, now seen corresponding path program 1 times [2024-12-02 06:19:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:16,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437581716] [2024-12-02 06:19:16,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:16,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:19:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:16,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437581716] [2024-12-02 06:19:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437581716] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495370226] [2024-12-02 06:19:16,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:16,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:16,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:16,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:16,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:19:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:16,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:19:16,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 06:19:16,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:19:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495370226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:16,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:19:16,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 06:19:16,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235513805] [2024-12-02 06:19:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:16,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:16,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:16,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:16,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:19:16,995 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) [2024-12-02 06:19:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:17,051 INFO L93 Difference]: Finished difference Result 371 states and 549 transitions. [2024-12-02 06:19:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:17,053 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 [2024-12-02 06:19:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:17,063 INFO L225 Difference]: With dead ends: 371 [2024-12-02 06:19:17,063 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 06:19:17,067 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 [2024-12-02 06:19:17,070 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 [2024-12-02 06:19:17,070 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] [2024-12-02 06:19:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 06:19:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 225. [2024-12-02 06:19:17,112 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) [2024-12-02 06:19:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions. [2024-12-02 06:19:17,119 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 78 [2024-12-02 06:19:17,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:17,121 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 337 transitions. [2024-12-02 06:19:17,121 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) [2024-12-02 06:19:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions. [2024-12-02 06:19:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 06:19:17,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:17,138 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] [2024-12-02 06:19:17,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:19:17,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:19:17,338 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:17,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash 647135369, now seen corresponding path program 1 times [2024-12-02 06:19:17,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:17,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535847191] [2024-12-02 06:19:17,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:17,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:19:17,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535847191] [2024-12-02 06:19:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535847191] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893623179] [2024-12-02 06:19:17,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:17,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:17,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:19:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:17,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:19:17,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:19:17,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:19:17,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893623179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:17,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:19:17,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 06:19:17,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781729451] [2024-12-02 06:19:17,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:17,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:17,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:17,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:19:17,875 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) [2024-12-02 06:19:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:17,948 INFO L93 Difference]: Finished difference Result 443 states and 667 transitions. [2024-12-02 06:19:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:17,949 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 [2024-12-02 06:19:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:17,951 INFO L225 Difference]: With dead ends: 443 [2024-12-02 06:19:17,951 INFO L226 Difference]: Without dead ends: 227 [2024-12-02 06:19:17,952 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 [2024-12-02 06:19:17,953 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, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:17,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1301 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:19:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-12-02 06:19:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-12-02 06:19:17,968 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) [2024-12-02 06:19:17,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 340 transitions. [2024-12-02 06:19:17,971 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 340 transitions. Word has length 82 [2024-12-02 06:19:17,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:17,971 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 340 transitions. [2024-12-02 06:19:17,971 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) [2024-12-02 06:19:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 340 transitions. [2024-12-02 06:19:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:19:17,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:17,975 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] [2024-12-02 06:19:17,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:19:18,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 06:19:18,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:18,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:18,176 INFO L85 PathProgramCache]: Analyzing trace with hash 557437681, now seen corresponding path program 1 times [2024-12-02 06:19:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:18,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256228105] [2024-12-02 06:19:18,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:18,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:19:18,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:18,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256228105] [2024-12-02 06:19:18,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256228105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:18,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:18,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:18,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636494691] [2024-12-02 06:19:18,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:18,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:18,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:18,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:18,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:18,343 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) [2024-12-02 06:19:18,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:18,399 INFO L93 Difference]: Finished difference Result 435 states and 655 transitions. [2024-12-02 06:19:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:18,399 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 [2024-12-02 06:19:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:18,402 INFO L225 Difference]: With dead ends: 435 [2024-12-02 06:19:18,402 INFO L226 Difference]: Without dead ends: 227 [2024-12-02 06:19:18,403 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 [2024-12-02 06:19:18,404 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 [2024-12-02 06:19:18,404 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] [2024-12-02 06:19:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-12-02 06:19:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-12-02 06:19:18,419 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) [2024-12-02 06:19:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2024-12-02 06:19:18,422 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 83 [2024-12-02 06:19:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:18,422 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2024-12-02 06:19:18,422 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) [2024-12-02 06:19:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2024-12-02 06:19:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 06:19:18,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:18,424 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] [2024-12-02 06:19:18,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:19:18,424 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:18,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1309022697, now seen corresponding path program 2 times [2024-12-02 06:19:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108715983] [2024-12-02 06:19:18,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:19:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:18,461 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:19:18,462 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:19:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 06:19:18,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:18,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108715983] [2024-12-02 06:19:18,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108715983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:18,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:18,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:18,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487041738] [2024-12-02 06:19:18,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:18,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:18,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:18,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:18,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:18,572 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) [2024-12-02 06:19:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:18,645 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2024-12-02 06:19:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:18,646 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 [2024-12-02 06:19:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:18,649 INFO L225 Difference]: With dead ends: 488 [2024-12-02 06:19:18,649 INFO L226 Difference]: Without dead ends: 364 [2024-12-02 06:19:18,650 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 [2024-12-02 06:19:18,651 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 [2024-12-02 06:19:18,652 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] [2024-12-02 06:19:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-02 06:19:18,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-12-02 06:19:18,676 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) [2024-12-02 06:19:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 564 transitions. [2024-12-02 06:19:18,680 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 564 transitions. Word has length 84 [2024-12-02 06:19:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:18,681 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 564 transitions. [2024-12-02 06:19:18,681 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) [2024-12-02 06:19:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 564 transitions. [2024-12-02 06:19:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:19:18,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:18,683 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] [2024-12-02 06:19:18,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:19:18,684 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:18,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash -791311454, now seen corresponding path program 1 times [2024-12-02 06:19:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132131698] [2024-12-02 06:19:18,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:18,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:19:18,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:18,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132131698] [2024-12-02 06:19:18,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132131698] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:18,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:18,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:18,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745137652] [2024-12-02 06:19:18,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:18,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:18,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:18,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:18,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:18,871 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) [2024-12-02 06:19:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:18,936 INFO L93 Difference]: Finished difference Result 711 states and 1108 transitions. [2024-12-02 06:19:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:18,936 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 [2024-12-02 06:19:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:18,939 INFO L225 Difference]: With dead ends: 711 [2024-12-02 06:19:18,939 INFO L226 Difference]: Without dead ends: 366 [2024-12-02 06:19:18,941 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 [2024-12-02 06:19:18,941 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 [2024-12-02 06:19:18,942 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] [2024-12-02 06:19:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-12-02 06:19:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-12-02 06:19:18,961 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) [2024-12-02 06:19:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 567 transitions. [2024-12-02 06:19:18,965 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 567 transitions. Word has length 89 [2024-12-02 06:19:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:18,966 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 567 transitions. [2024-12-02 06:19:18,966 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) [2024-12-02 06:19:18,966 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 567 transitions. [2024-12-02 06:19:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:19:18,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:18,968 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] [2024-12-02 06:19:18,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:19:18,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:18,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1297734817, now seen corresponding path program 1 times [2024-12-02 06:19:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:18,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547581346] [2024-12-02 06:19:18,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:18,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:19,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547581346] [2024-12-02 06:19:19,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547581346] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:19,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:19,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856609223] [2024-12-02 06:19:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:19,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:19,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:19,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:19,056 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) [2024-12-02 06:19:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:19,091 INFO L93 Difference]: Finished difference Result 820 states and 1304 transitions. [2024-12-02 06:19:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:19,092 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 [2024-12-02 06:19:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:19,096 INFO L225 Difference]: With dead ends: 820 [2024-12-02 06:19:19,096 INFO L226 Difference]: Without dead ends: 478 [2024-12-02 06:19:19,098 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 [2024-12-02 06:19:19,098 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 [2024-12-02 06:19:19,099 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] [2024-12-02 06:19:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-12-02 06:19:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 468. [2024-12-02 06:19:19,124 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) [2024-12-02 06:19:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 753 transitions. [2024-12-02 06:19:19,129 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 753 transitions. Word has length 90 [2024-12-02 06:19:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:19,130 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 753 transitions. [2024-12-02 06:19:19,130 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) [2024-12-02 06:19:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 753 transitions. [2024-12-02 06:19:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 06:19:19,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:19,133 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] [2024-12-02 06:19:19,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:19:19,133 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:19,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash 254487193, now seen corresponding path program 1 times [2024-12-02 06:19:19,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:19,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104257199] [2024-12-02 06:19:19,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:19,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104257199] [2024-12-02 06:19:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104257199] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57034944] [2024-12-02 06:19:19,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:19,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:19,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:19,260 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:19,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:19:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:19,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:19:19,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:19,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:19:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:19,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57034944] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:19:19,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:19:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 06:19:19,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251076141] [2024-12-02 06:19:19,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:19:19,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:19:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:19,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:19:19,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:19:19,614 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) [2024-12-02 06:19:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:19,693 INFO L93 Difference]: Finished difference Result 1112 states and 1830 transitions. [2024-12-02 06:19:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:19:19,694 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 [2024-12-02 06:19:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:19,700 INFO L225 Difference]: With dead ends: 1112 [2024-12-02 06:19:19,700 INFO L226 Difference]: Without dead ends: 916 [2024-12-02 06:19:19,701 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 [2024-12-02 06:19:19,702 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 367 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:19,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1437 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:19:19,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-12-02 06:19:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 888. [2024-12-02 06:19:19,740 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) [2024-12-02 06:19:19,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1509 transitions. [2024-12-02 06:19:19,746 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1509 transitions. Word has length 86 [2024-12-02 06:19:19,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:19,746 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1509 transitions. [2024-12-02 06:19:19,746 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) [2024-12-02 06:19:19,746 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1509 transitions. [2024-12-02 06:19:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:19:19,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:19,749 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] [2024-12-02 06:19:19,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:19:19,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 06:19:19,950 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:19,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash 970046292, now seen corresponding path program 1 times [2024-12-02 06:19:19,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:19,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881068170] [2024-12-02 06:19:19,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881068170] [2024-12-02 06:19:20,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881068170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:20,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:20,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:20,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207336346] [2024-12-02 06:19:20,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:20,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:20,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:20,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:20,007 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) [2024-12-02 06:19:20,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:20,040 INFO L93 Difference]: Finished difference Result 2090 states and 3612 transitions. [2024-12-02 06:19:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:20,040 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 [2024-12-02 06:19:20,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:20,046 INFO L225 Difference]: With dead ends: 2090 [2024-12-02 06:19:20,046 INFO L226 Difference]: Without dead ends: 1349 [2024-12-02 06:19:20,048 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 [2024-12-02 06:19:20,049 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 [2024-12-02 06:19:20,049 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] [2024-12-02 06:19:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-12-02 06:19:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1339. [2024-12-02 06:19:20,086 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) [2024-12-02 06:19:20,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2330 transitions. [2024-12-02 06:19:20,092 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2330 transitions. Word has length 95 [2024-12-02 06:19:20,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:20,092 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 2330 transitions. [2024-12-02 06:19:20,092 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) [2024-12-02 06:19:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2330 transitions. [2024-12-02 06:19:20,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 06:19:20,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:20,097 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] [2024-12-02 06:19:20,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:19:20,097 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:20,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1738748651, now seen corresponding path program 1 times [2024-12-02 06:19:20,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:20,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161009150] [2024-12-02 06:19:20,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:20,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:20,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:20,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161009150] [2024-12-02 06:19:20,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161009150] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:20,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:20,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:20,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380017444] [2024-12-02 06:19:20,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:20,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:20,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:20,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:20,148 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) [2024-12-02 06:19:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:20,191 INFO L93 Difference]: Finished difference Result 3283 states and 5769 transitions. [2024-12-02 06:19:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:20,191 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 [2024-12-02 06:19:20,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:20,199 INFO L225 Difference]: With dead ends: 3283 [2024-12-02 06:19:20,199 INFO L226 Difference]: Without dead ends: 2034 [2024-12-02 06:19:20,201 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 [2024-12-02 06:19:20,202 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 [2024-12-02 06:19:20,202 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] [2024-12-02 06:19:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2024-12-02 06:19:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 2024. [2024-12-02 06:19:20,266 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) [2024-12-02 06:19:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3543 transitions. [2024-12-02 06:19:20,274 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3543 transitions. Word has length 96 [2024-12-02 06:19:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:20,274 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3543 transitions. [2024-12-02 06:19:20,274 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) [2024-12-02 06:19:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3543 transitions. [2024-12-02 06:19:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 06:19:20,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:20,279 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] [2024-12-02 06:19:20,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:19:20,279 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:20,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1295095422, now seen corresponding path program 1 times [2024-12-02 06:19:20,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:20,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73327813] [2024-12-02 06:19:20,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:20,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:20,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73327813] [2024-12-02 06:19:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73327813] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:20,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685465456] [2024-12-02 06:19:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:20,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:20,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:20,328 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) [2024-12-02 06:19:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:20,382 INFO L93 Difference]: Finished difference Result 5004 states and 8837 transitions. [2024-12-02 06:19:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:20,383 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 [2024-12-02 06:19:20,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:20,393 INFO L225 Difference]: With dead ends: 5004 [2024-12-02 06:19:20,393 INFO L226 Difference]: Without dead ends: 3148 [2024-12-02 06:19:20,397 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 [2024-12-02 06:19:20,397 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 [2024-12-02 06:19:20,397 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] [2024-12-02 06:19:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-12-02 06:19:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3138. [2024-12-02 06:19:20,470 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) [2024-12-02 06:19:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 5504 transitions. [2024-12-02 06:19:20,484 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 5504 transitions. Word has length 97 [2024-12-02 06:19:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:20,484 INFO L471 AbstractCegarLoop]: Abstraction has 3138 states and 5504 transitions. [2024-12-02 06:19:20,484 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) [2024-12-02 06:19:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 5504 transitions. [2024-12-02 06:19:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 06:19:20,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:20,493 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] [2024-12-02 06:19:20,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:19:20,493 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:20,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1369352370, now seen corresponding path program 2 times [2024-12-02 06:19:20,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:20,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650745178] [2024-12-02 06:19:20,494 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:19:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:20,516 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:19:20,516 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:19:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 06:19:20,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:20,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650745178] [2024-12-02 06:19:20,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650745178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:20,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:20,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:20,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822915914] [2024-12-02 06:19:20,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:20,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:20,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:20,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:20,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:20,569 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) [2024-12-02 06:19:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:20,700 INFO L93 Difference]: Finished difference Result 5563 states and 9760 transitions. [2024-12-02 06:19:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:20,701 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 [2024-12-02 06:19:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:20,718 INFO L225 Difference]: With dead ends: 5563 [2024-12-02 06:19:20,718 INFO L226 Difference]: Without dead ends: 5437 [2024-12-02 06:19:20,720 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 [2024-12-02 06:19:20,720 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 [2024-12-02 06:19:20,721 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] [2024-12-02 06:19:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-12-02 06:19:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5311. [2024-12-02 06:19:20,869 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) [2024-12-02 06:19:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 9382 transitions. [2024-12-02 06:19:20,887 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 9382 transitions. Word has length 98 [2024-12-02 06:19:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:20,887 INFO L471 AbstractCegarLoop]: Abstraction has 5311 states and 9382 transitions. [2024-12-02 06:19:20,887 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) [2024-12-02 06:19:20,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 9382 transitions. [2024-12-02 06:19:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 06:19:20,901 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:20,901 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] [2024-12-02 06:19:20,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:19:20,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:20,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:20,901 INFO L85 PathProgramCache]: Analyzing trace with hash 697029866, now seen corresponding path program 1 times [2024-12-02 06:19:20,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:20,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817445705] [2024-12-02 06:19:20,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:20,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 06:19:21,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817445705] [2024-12-02 06:19:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817445705] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015816515] [2024-12-02 06:19:21,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:21,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:21,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:21,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:21,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:19:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:21,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:19:21,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 06:19:21,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:19:21,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015816515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:21,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:19:21,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 06:19:21,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443281992] [2024-12-02 06:19:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:21,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:21,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:21,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:19:21,364 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) [2024-12-02 06:19:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:21,459 INFO L93 Difference]: Finished difference Result 9171 states and 16220 transitions. [2024-12-02 06:19:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:21,460 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 [2024-12-02 06:19:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:21,476 INFO L225 Difference]: With dead ends: 9171 [2024-12-02 06:19:21,476 INFO L226 Difference]: Without dead ends: 5321 [2024-12-02 06:19:21,483 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 [2024-12-02 06:19:21,483 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 [2024-12-02 06:19:21,484 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] [2024-12-02 06:19:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5321 states. [2024-12-02 06:19:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5321 to 5311. [2024-12-02 06:19:21,620 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) [2024-12-02 06:19:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 9343 transitions. [2024-12-02 06:19:21,641 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 9343 transitions. Word has length 103 [2024-12-02 06:19:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:21,641 INFO L471 AbstractCegarLoop]: Abstraction has 5311 states and 9343 transitions. [2024-12-02 06:19:21,641 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) [2024-12-02 06:19:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 9343 transitions. [2024-12-02 06:19:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 06:19:21,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:21,653 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] [2024-12-02 06:19:21,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:19:21,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:21,854 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:21,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:21,854 INFO L85 PathProgramCache]: Analyzing trace with hash 289161845, now seen corresponding path program 1 times [2024-12-02 06:19:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:21,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817909895] [2024-12-02 06:19:21,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:21,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:21,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:21,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817909895] [2024-12-02 06:19:21,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817909895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:21,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:21,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:21,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233901918] [2024-12-02 06:19:21,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:21,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:21,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:21,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:21,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:21,907 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) [2024-12-02 06:19:22,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:22,070 INFO L93 Difference]: Finished difference Result 13714 states and 24301 transitions. [2024-12-02 06:19:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:22,071 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 [2024-12-02 06:19:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:22,110 INFO L225 Difference]: With dead ends: 13714 [2024-12-02 06:19:22,110 INFO L226 Difference]: Without dead ends: 8833 [2024-12-02 06:19:22,122 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 [2024-12-02 06:19:22,122 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 [2024-12-02 06:19:22,123 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] [2024-12-02 06:19:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2024-12-02 06:19:22,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8823. [2024-12-02 06:19:22,389 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) [2024-12-02 06:19:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8823 states to 8823 states and 15490 transitions. [2024-12-02 06:19:22,424 INFO L78 Accepts]: Start accepts. Automaton has 8823 states and 15490 transitions. Word has length 99 [2024-12-02 06:19:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:22,425 INFO L471 AbstractCegarLoop]: Abstraction has 8823 states and 15490 transitions. [2024-12-02 06:19:22,425 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) [2024-12-02 06:19:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 8823 states and 15490 transitions. [2024-12-02 06:19:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 06:19:22,449 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:22,449 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] [2024-12-02 06:19:22,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:19:22,450 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:22,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:22,450 INFO L85 PathProgramCache]: Analyzing trace with hash 231115962, now seen corresponding path program 1 times [2024-12-02 06:19:22,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249048465] [2024-12-02 06:19:22,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:22,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:22,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249048465] [2024-12-02 06:19:22,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249048465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:22,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:22,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:22,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713022477] [2024-12-02 06:19:22,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:22,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:22,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:22,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:22,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:22,510 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) [2024-12-02 06:19:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:22,733 INFO L93 Difference]: Finished difference Result 22595 states and 40079 transitions. [2024-12-02 06:19:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:22,733 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 [2024-12-02 06:19:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:22,801 INFO L225 Difference]: With dead ends: 22595 [2024-12-02 06:19:22,802 INFO L226 Difference]: Without dead ends: 14625 [2024-12-02 06:19:22,812 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 [2024-12-02 06:19:22,813 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 [2024-12-02 06:19:22,813 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] [2024-12-02 06:19:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2024-12-02 06:19:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 14615. [2024-12-02 06:19:23,147 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) [2024-12-02 06:19:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 25693 transitions. [2024-12-02 06:19:23,189 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 25693 transitions. Word has length 100 [2024-12-02 06:19:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:23,189 INFO L471 AbstractCegarLoop]: Abstraction has 14615 states and 25693 transitions. [2024-12-02 06:19:23,190 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) [2024-12-02 06:19:23,190 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 25693 transitions. [2024-12-02 06:19:23,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 06:19:23,220 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:23,220 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] [2024-12-02 06:19:23,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:19:23,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:23,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1891727766, now seen corresponding path program 1 times [2024-12-02 06:19:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:23,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888494642] [2024-12-02 06:19:23,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 06:19:23,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:23,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888494642] [2024-12-02 06:19:23,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888494642] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:23,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100448317] [2024-12-02 06:19:23,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:23,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:23,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:23,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:23,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:19:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:23,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:19:23,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 06:19:23,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:19:23,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100448317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:23,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:19:23,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 06:19:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117403514] [2024-12-02 06:19:23,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:23,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:23,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:23,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:23,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:19:23,624 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) [2024-12-02 06:19:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:23,853 INFO L93 Difference]: Finished difference Result 26761 states and 47212 transitions. [2024-12-02 06:19:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:23,854 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 [2024-12-02 06:19:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:23,887 INFO L225 Difference]: With dead ends: 26761 [2024-12-02 06:19:23,887 INFO L226 Difference]: Without dead ends: 14625 [2024-12-02 06:19:23,905 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 [2024-12-02 06:19:23,905 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 [2024-12-02 06:19:23,905 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] [2024-12-02 06:19:23,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2024-12-02 06:19:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 14615. [2024-12-02 06:19:24,279 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) [2024-12-02 06:19:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 25554 transitions. [2024-12-02 06:19:24,332 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 25554 transitions. Word has length 107 [2024-12-02 06:19:24,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:24,332 INFO L471 AbstractCegarLoop]: Abstraction has 14615 states and 25554 transitions. [2024-12-02 06:19:24,333 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) [2024-12-02 06:19:24,333 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 25554 transitions. [2024-12-02 06:19:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 06:19:24,373 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:24,373 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] [2024-12-02 06:19:24,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:19:24,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 06:19:24,573 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:24,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1269107063, now seen corresponding path program 1 times [2024-12-02 06:19:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510753915] [2024-12-02 06:19:24,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:24,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:24,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510753915] [2024-12-02 06:19:24,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510753915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:24,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:24,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:24,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941718075] [2024-12-02 06:19:24,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:24,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:24,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:24,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:24,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:24,635 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) [2024-12-02 06:19:25,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:25,107 INFO L93 Difference]: Finished difference Result 39753 states and 69931 transitions. [2024-12-02 06:19:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:25,108 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 [2024-12-02 06:19:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:25,186 INFO L225 Difference]: With dead ends: 39753 [2024-12-02 06:19:25,186 INFO L226 Difference]: Without dead ends: 26291 [2024-12-02 06:19:25,293 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 [2024-12-02 06:19:25,294 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 [2024-12-02 06:19:25,294 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] [2024-12-02 06:19:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26291 states. [2024-12-02 06:19:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26291 to 26281. [2024-12-02 06:19:26,084 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) [2024-12-02 06:19:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26281 states to 26281 states and 45770 transitions. [2024-12-02 06:19:26,173 INFO L78 Accepts]: Start accepts. Automaton has 26281 states and 45770 transitions. Word has length 101 [2024-12-02 06:19:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:26,173 INFO L471 AbstractCegarLoop]: Abstraction has 26281 states and 45770 transitions. [2024-12-02 06:19:26,174 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) [2024-12-02 06:19:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 26281 states and 45770 transitions. [2024-12-02 06:19:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 06:19:26,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:26,219 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] [2024-12-02 06:19:26,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:19:26,219 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:26,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash 644668364, now seen corresponding path program 1 times [2024-12-02 06:19:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:26,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279888435] [2024-12-02 06:19:26,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:26,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:26,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279888435] [2024-12-02 06:19:26,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279888435] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:26,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:26,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:26,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083036342] [2024-12-02 06:19:26,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:26,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:26,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:26,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:26,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:26,283 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) [2024-12-02 06:19:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:27,026 INFO L93 Difference]: Finished difference Result 62966 states and 109244 transitions. [2024-12-02 06:19:27,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:27,027 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 [2024-12-02 06:19:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:27,173 INFO L225 Difference]: With dead ends: 62966 [2024-12-02 06:19:27,173 INFO L226 Difference]: Without dead ends: 39324 [2024-12-02 06:19:27,208 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 [2024-12-02 06:19:27,209 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 [2024-12-02 06:19:27,209 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] [2024-12-02 06:19:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39324 states. [2024-12-02 06:19:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39324 to 39314. [2024-12-02 06:19:28,416 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) [2024-12-02 06:19:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39314 states to 39314 states and 67169 transitions. [2024-12-02 06:19:28,512 INFO L78 Accepts]: Start accepts. Automaton has 39314 states and 67169 transitions. Word has length 102 [2024-12-02 06:19:28,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:28,513 INFO L471 AbstractCegarLoop]: Abstraction has 39314 states and 67169 transitions. [2024-12-02 06:19:28,513 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) [2024-12-02 06:19:28,513 INFO L276 IsEmpty]: Start isEmpty. Operand 39314 states and 67169 transitions. [2024-12-02 06:19:28,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 06:19:28,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:28,563 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] [2024-12-02 06:19:28,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:19:28,563 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:28,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1561394439, now seen corresponding path program 1 times [2024-12-02 06:19:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:28,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451530652] [2024-12-02 06:19:28,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:28,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:28,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:28,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451530652] [2024-12-02 06:19:28,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451530652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:28,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:28,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:28,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032368625] [2024-12-02 06:19:28,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:28,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:28,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:28,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:28,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:28,635 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) [2024-12-02 06:19:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:29,618 INFO L93 Difference]: Finished difference Result 110052 states and 188386 transitions. [2024-12-02 06:19:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:29,618 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 [2024-12-02 06:19:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:29,769 INFO L225 Difference]: With dead ends: 110052 [2024-12-02 06:19:29,769 INFO L226 Difference]: Without dead ends: 73887 [2024-12-02 06:19:29,808 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 [2024-12-02 06:19:29,808 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 [2024-12-02 06:19:29,809 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] [2024-12-02 06:19:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73887 states. [2024-12-02 06:19:31,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73887 to 73877. [2024-12-02 06:19:31,258 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) [2024-12-02 06:19:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73877 states to 73877 states and 125134 transitions. [2024-12-02 06:19:31,395 INFO L78 Accepts]: Start accepts. Automaton has 73877 states and 125134 transitions. Word has length 103 [2024-12-02 06:19:31,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:31,395 INFO L471 AbstractCegarLoop]: Abstraction has 73877 states and 125134 transitions. [2024-12-02 06:19:31,395 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) [2024-12-02 06:19:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 73877 states and 125134 transitions. [2024-12-02 06:19:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:19:31,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:31,454 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] [2024-12-02 06:19:31,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:19:31,454 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:31,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1497449618, now seen corresponding path program 1 times [2024-12-02 06:19:31,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:31,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352792123] [2024-12-02 06:19:31,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:31,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:31,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:31,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352792123] [2024-12-02 06:19:31,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352792123] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:31,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:31,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133934925] [2024-12-02 06:19:31,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:31,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:31,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:31,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:31,504 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) [2024-12-02 06:19:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:33,344 INFO L93 Difference]: Finished difference Result 211194 states and 357909 transitions. [2024-12-02 06:19:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:33,344 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 [2024-12-02 06:19:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:33,626 INFO L225 Difference]: With dead ends: 211194 [2024-12-02 06:19:33,626 INFO L226 Difference]: Without dead ends: 141285 [2024-12-02 06:19:33,686 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 [2024-12-02 06:19:33,686 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 [2024-12-02 06:19:33,687 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] [2024-12-02 06:19:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141285 states. [2024-12-02 06:19:36,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141285 to 141275. [2024-12-02 06:19:36,237 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) [2024-12-02 06:19:36,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141275 states to 141275 states and 236931 transitions. [2024-12-02 06:19:36,902 INFO L78 Accepts]: Start accepts. Automaton has 141275 states and 236931 transitions. Word has length 104 [2024-12-02 06:19:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:36,903 INFO L471 AbstractCegarLoop]: Abstraction has 141275 states and 236931 transitions. [2024-12-02 06:19:36,903 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) [2024-12-02 06:19:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 141275 states and 236931 transitions. [2024-12-02 06:19:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:19:37,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:37,023 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] [2024-12-02 06:19:37,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:19:37,023 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:37,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:37,023 INFO L85 PathProgramCache]: Analyzing trace with hash 436173896, now seen corresponding path program 1 times [2024-12-02 06:19:37,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:37,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837632348] [2024-12-02 06:19:37,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:37,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:37,156 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-02 06:19:37,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837632348] [2024-12-02 06:19:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837632348] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:19:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487142057] [2024-12-02 06:19:37,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:37,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:37,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:19:37,158 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:19:37,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:19:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:37,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:19:37,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 06:19:37,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:19:37,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487142057] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:37,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:19:37,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-12-02 06:19:37,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735402836] [2024-12-02 06:19:37,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:37,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:19:37,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:37,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:19:37,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:19:37,515 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) [2024-12-02 06:19:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:38,802 INFO L93 Difference]: Finished difference Result 141473 states and 237206 transitions. [2024-12-02 06:19:38,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:19:38,802 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 [2024-12-02 06:19:38,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:38,935 INFO L225 Difference]: With dead ends: 141473 [2024-12-02 06:19:38,935 INFO L226 Difference]: Without dead ends: 72336 [2024-12-02 06:19:38,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:19:38,987 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 [2024-12-02 06:19:38,988 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] [2024-12-02 06:19:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72336 states. [2024-12-02 06:19:40,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72336 to 72332. [2024-12-02 06:19:40,446 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) [2024-12-02 06:19:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72332 states to 72332 states and 120076 transitions. [2024-12-02 06:19:40,624 INFO L78 Accepts]: Start accepts. Automaton has 72332 states and 120076 transitions. Word has length 108 [2024-12-02 06:19:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:40,624 INFO L471 AbstractCegarLoop]: Abstraction has 72332 states and 120076 transitions. [2024-12-02 06:19:40,624 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) [2024-12-02 06:19:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 72332 states and 120076 transitions. [2024-12-02 06:19:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 06:19:40,703 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:40,703 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] [2024-12-02 06:19:40,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:19:40,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:19:40,904 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:40,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash -670485125, now seen corresponding path program 1 times [2024-12-02 06:19:40,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:40,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328415638] [2024-12-02 06:19:40,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:40,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:40,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:40,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328415638] [2024-12-02 06:19:40,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328415638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:40,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:40,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:19:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642893778] [2024-12-02 06:19:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:40,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:19:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:40,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:19:40,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:19:40,976 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) [2024-12-02 06:19:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:42,776 INFO L93 Difference]: Finished difference Result 138799 states and 230035 transitions. [2024-12-02 06:19:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:19:42,777 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 [2024-12-02 06:19:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:42,992 INFO L225 Difference]: With dead ends: 138799 [2024-12-02 06:19:42,992 INFO L226 Difference]: Without dead ends: 138603 [2024-12-02 06:19:43,017 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 [2024-12-02 06:19:43,017 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 [2024-12-02 06:19:43,018 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] [2024-12-02 06:19:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138603 states. [2024-12-02 06:19:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138603 to 138593. [2024-12-02 06:19:45,698 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) [2024-12-02 06:19:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138593 states to 138593 states and 227608 transitions. [2024-12-02 06:19:46,063 INFO L78 Accepts]: Start accepts. Automaton has 138593 states and 227608 transitions. Word has length 105 [2024-12-02 06:19:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:46,063 INFO L471 AbstractCegarLoop]: Abstraction has 138593 states and 227608 transitions. [2024-12-02 06:19:46,064 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) [2024-12-02 06:19:46,064 INFO L276 IsEmpty]: Start isEmpty. Operand 138593 states and 227608 transitions. [2024-12-02 06:19:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:19:46,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:46,141 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] [2024-12-02 06:19:46,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:19:46,141 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:46,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:46,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2079718981, now seen corresponding path program 1 times [2024-12-02 06:19:46,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:46,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638021918] [2024-12-02 06:19:46,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 06:19:46,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:46,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638021918] [2024-12-02 06:19:46,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638021918] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:46,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:46,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:19:46,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775427456] [2024-12-02 06:19:46,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:46,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:19:46,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:46,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:19:46,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:19:46,454 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) [2024-12-02 06:19:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:48,694 INFO L93 Difference]: Finished difference Result 138933 states and 228111 transitions. [2024-12-02 06:19:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:19:48,694 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 [2024-12-02 06:19:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:49,015 INFO L225 Difference]: With dead ends: 138933 [2024-12-02 06:19:49,016 INFO L226 Difference]: Without dead ends: 138807 [2024-12-02 06:19:49,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:19:49,039 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 561 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:49,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 3484 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:19:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138807 states. [2024-12-02 06:19:52,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138807 to 138775. [2024-12-02 06:19:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138775 states, 132253 states have (on average 1.6248931971297438) internal successors, (214897), 132261 states have internal predecessors, (214897), 6480 states have call successors, (6480), 40 states have call predecessors, (6480), 41 states have return successors, (6501), 6473 states have call predecessors, (6501), 6478 states have call successors, (6501) [2024-12-02 06:19:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138775 states to 138775 states and 227878 transitions. [2024-12-02 06:19:52,439 INFO L78 Accepts]: Start accepts. Automaton has 138775 states and 227878 transitions. Word has length 109 [2024-12-02 06:19:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:52,440 INFO L471 AbstractCegarLoop]: Abstraction has 138775 states and 227878 transitions. [2024-12-02 06:19:52,440 INFO L472 AbstractCegarLoop]: INTERPOLANT 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) [2024-12-02 06:19:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 138775 states and 227878 transitions. [2024-12-02 06:19:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 06:19:52,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:52,500 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, 1, 1] [2024-12-02 06:19:52,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:19:52,500 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:52,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 366313990, now seen corresponding path program 1 times [2024-12-02 06:19:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:52,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969026461] [2024-12-02 06:19:52,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:52,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:52,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969026461] [2024-12-02 06:19:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969026461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:52,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:19:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590435041] [2024-12-02 06:19:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:52,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:19:52,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:52,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:19:52,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:19:52,923 INFO L87 Difference]: Start difference. First operand 138775 states and 227878 transitions. Second operand has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-12-02 06:19:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:54,417 INFO L93 Difference]: Finished difference Result 139230 states and 228568 transitions. [2024-12-02 06:19:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:19:54,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 107 [2024-12-02 06:19:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:54,712 INFO L225 Difference]: With dead ends: 139230 [2024-12-02 06:19:54,712 INFO L226 Difference]: Without dead ends: 138899 [2024-12-02 06:19:54,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:19:54,748 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 75 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:54,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 3519 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:19:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138899 states. [2024-12-02 06:19:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138899 to 138897. [2024-12-02 06:19:57,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138897 states, 132336 states have (on average 1.6246599564744286) internal successors, (215001), 132347 states have internal predecessors, (215001), 6516 states have call successors, (6516), 44 states have call predecessors, (6516), 44 states have return successors, (6546), 6505 states have call predecessors, (6546), 6510 states have call successors, (6546) [2024-12-02 06:19:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138897 states to 138897 states and 228063 transitions. [2024-12-02 06:19:57,305 INFO L78 Accepts]: Start accepts. Automaton has 138897 states and 228063 transitions. Word has length 107 [2024-12-02 06:19:57,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:57,305 INFO L471 AbstractCegarLoop]: Abstraction has 138897 states and 228063 transitions. [2024-12-02 06:19:57,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-12-02 06:19:57,306 INFO L276 IsEmpty]: Start isEmpty. Operand 138897 states and 228063 transitions. [2024-12-02 06:19:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 06:19:57,361 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:57,361 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, 1, 1] [2024-12-02 06:19:57,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:19:57,361 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:57,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1907474887, now seen corresponding path program 1 times [2024-12-02 06:19:57,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:57,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765718971] [2024-12-02 06:19:57,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:57,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 06:19:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:57,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765718971] [2024-12-02 06:19:57,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765718971] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:57,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:57,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:57,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002428348] [2024-12-02 06:19:57,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:57,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:57,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:57,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:57,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:57,442 INFO L87 Difference]: Start difference. First operand 138897 states and 228063 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 06:19:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:59,232 INFO L93 Difference]: Finished difference Result 139102 states and 228357 transitions. [2024-12-02 06:19:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:19:59,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 107 [2024-12-02 06:19:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:59,513 INFO L225 Difference]: With dead ends: 139102 [2024-12-02 06:19:59,513 INFO L226 Difference]: Without dead ends: 138841 [2024-12-02 06:19:59,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:19:59,539 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:59,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1303 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:19:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138841 states. [2024-12-02 06:20:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138841 to 138841. [2024-12-02 06:20:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138841 states, 132296 states have (on average 1.6247052065066214) internal successors, (214942), 132304 states have internal predecessors, (214942), 6504 states have call successors, (6504), 39 states have call predecessors, (6504), 40 states have return successors, (6530), 6497 states have call predecessors, (6530), 6498 states have call successors, (6530) [2024-12-02 06:20:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138841 states to 138841 states and 227976 transitions. [2024-12-02 06:20:02,331 INFO L78 Accepts]: Start accepts. Automaton has 138841 states and 227976 transitions. Word has length 107 [2024-12-02 06:20:02,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:02,332 INFO L471 AbstractCegarLoop]: Abstraction has 138841 states and 227976 transitions. [2024-12-02 06:20:02,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 06:20:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 138841 states and 227976 transitions. [2024-12-02 06:20:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 06:20:02,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:02,431 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:02,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:20:02,431 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1502799922, now seen corresponding path program 1 times [2024-12-02 06:20:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608939069] [2024-12-02 06:20:02,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 06:20:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:02,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608939069] [2024-12-02 06:20:02,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608939069] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:02,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:02,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:20:02,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176857918] [2024-12-02 06:20:02,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:02,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:20:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:02,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:20:02,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:20:02,543 INFO L87 Difference]: Start difference. First operand 138841 states and 227976 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:20:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:05,632 INFO L93 Difference]: Finished difference Result 270433 states and 447293 transitions. [2024-12-02 06:20:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:20:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-12-02 06:20:05,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:06,239 INFO L225 Difference]: With dead ends: 270433 [2024-12-02 06:20:06,239 INFO L226 Difference]: Without dead ends: 270022 [2024-12-02 06:20:06,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:20:06,293 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 291 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:06,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1808 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:20:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270022 states. [2024-12-02 06:20:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270022 to 270012. [2024-12-02 06:20:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270012 states, 257002 states have (on average 1.6288900475482682) internal successors, (418628), 256941 states have internal predecessors, (418628), 12929 states have call successors, (12929), 76 states have call predecessors, (12929), 80 states have return successors, (15122), 12994 states have call predecessors, (15122), 12917 states have call successors, (15122) [2024-12-02 06:20:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270012 states to 270012 states and 446679 transitions. [2024-12-02 06:20:13,762 INFO L78 Accepts]: Start accepts. Automaton has 270012 states and 446679 transitions. Word has length 125 [2024-12-02 06:20:13,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:13,763 INFO L471 AbstractCegarLoop]: Abstraction has 270012 states and 446679 transitions. [2024-12-02 06:20:13,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:20:13,763 INFO L276 IsEmpty]: Start isEmpty. Operand 270012 states and 446679 transitions. [2024-12-02 06:20:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 06:20:14,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:14,057 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:14,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:20:14,057 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:14,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:14,057 INFO L85 PathProgramCache]: Analyzing trace with hash -15726395, now seen corresponding path program 1 times [2024-12-02 06:20:14,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:14,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444556703] [2024-12-02 06:20:14,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 06:20:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444556703] [2024-12-02 06:20:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444556703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:14,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:14,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:20:14,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505479081] [2024-12-02 06:20:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:14,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:20:14,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:14,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:20:14,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:20:14,276 INFO L87 Difference]: Start difference. First operand 270012 states and 446679 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 06:20:18,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:18,215 INFO L93 Difference]: Finished difference Result 270773 states and 447770 transitions. [2024-12-02 06:20:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:20:18,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 129 [2024-12-02 06:20:18,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:18,782 INFO L225 Difference]: With dead ends: 270773 [2024-12-02 06:20:18,782 INFO L226 Difference]: Without dead ends: 269923 [2024-12-02 06:20:18,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:20:18,824 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 338 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:18,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 2167 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:20:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269923 states. [2024-12-02 06:20:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269923 to 269917. [2024-12-02 06:20:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269917 states, 256933 states have (on average 1.6289149311299054) internal successors, (418522), 256872 states have internal predecessors, (418522), 12906 states have call successors, (12906), 71 states have call predecessors, (12906), 77 states have return successors, (15087), 12973 states have call predecessors, (15087), 12894 states have call successors, (15087) [2024-12-02 06:20:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269917 states to 269917 states and 446515 transitions. [2024-12-02 06:20:24,788 INFO L78 Accepts]: Start accepts. Automaton has 269917 states and 446515 transitions. Word has length 129 [2024-12-02 06:20:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:24,788 INFO L471 AbstractCegarLoop]: Abstraction has 269917 states and 446515 transitions. [2024-12-02 06:20:24,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 06:20:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 269917 states and 446515 transitions. [2024-12-02 06:20:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 06:20:25,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:25,584 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 06:20:25,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:20:25,585 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:25,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1556209982, now seen corresponding path program 1 times [2024-12-02 06:20:25,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:25,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810046137] [2024-12-02 06:20:25,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:25,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 06:20:25,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810046137] [2024-12-02 06:20:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810046137] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:25,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899074814] [2024-12-02 06:20:25,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:25,974 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:25,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:20:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:26,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 06:20:26,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 06:20:26,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:20:26,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899074814] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:26,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:20:26,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2024-12-02 06:20:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915290632] [2024-12-02 06:20:26,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:26,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:20:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:26,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:20:26,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:20:26,755 INFO L87 Difference]: Start difference. First operand 269917 states and 446515 transitions. Second operand has 14 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 6 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) [2024-12-02 06:20:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:31,107 INFO L93 Difference]: Finished difference Result 271141 states and 448353 transitions. [2024-12-02 06:20:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 06:20:31,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 6 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) Word has length 155 [2024-12-02 06:20:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:31,805 INFO L225 Difference]: With dead ends: 271141 [2024-12-02 06:20:31,805 INFO L226 Difference]: Without dead ends: 270549 [2024-12-02 06:20:31,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 06:20:31,850 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 467 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:31,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1890 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:20:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270549 states. [2024-12-02 06:20:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270549 to 270428. [2024-12-02 06:20:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270428 states, 257325 states have (on average 1.6285436704556495) internal successors, (419065), 257270 states have internal predecessors, (419065), 12986 states have call successors, (12986), 104 states have call predecessors, (12986), 116 states have return successors, (15201), 13053 states have call predecessors, (15201), 12970 states have call successors, (15201) [2024-12-02 06:20:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270428 states to 270428 states and 447252 transitions. [2024-12-02 06:20:37,621 INFO L78 Accepts]: Start accepts. Automaton has 270428 states and 447252 transitions. Word has length 155 [2024-12-02 06:20:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:37,621 INFO L471 AbstractCegarLoop]: Abstraction has 270428 states and 447252 transitions. [2024-12-02 06:20:37,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 6 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) [2024-12-02 06:20:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 270428 states and 447252 transitions. [2024-12-02 06:20:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 06:20:38,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:38,502 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 06:20:38,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:20:38,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05d4586-31e4-4749-b24d-fe9be0797449/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:38,703 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1394809271, now seen corresponding path program 1 times [2024-12-02 06:20:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556594837] [2024-12-02 06:20:38,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 06:20:38,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:38,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556594837] [2024-12-02 06:20:38,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556594837] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:38,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:38,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:20:38,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870727395] [2024-12-02 06:20:38,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:38,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:20:38,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:38,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:20:38,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:20:38,861 INFO L87 Difference]: Start difference. First operand 270428 states and 447252 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)