./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product23.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_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB --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 b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:11:22,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:11:22,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:11:22,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:11:22,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:11:22,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:11:22,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:11:22,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:11:22,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:11:22,509 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:11:22,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:11:22,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:11:22,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:11:22,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:11:22,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:11:22,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:11:22,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:11:22,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:11:22,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:11:22,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:11:22,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:22,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:22,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:22,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:11:22,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:11:22,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:11:22,516 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_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB 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 -> b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 [2024-11-28 05:11:22,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:11:22,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:11:22,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:11:22,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:11:22,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:11:22,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2024-11-28 05:11:26,405 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/data/e5d06ece3/7f166f10e12f47b5a2d61e39ae55a351/FLAGbccf42953 [2024-11-28 05:11:26,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:11:26,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2024-11-28 05:11:26,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/data/e5d06ece3/7f166f10e12f47b5a2d61e39ae55a351/FLAGbccf42953 [2024-11-28 05:11:26,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/data/e5d06ece3/7f166f10e12f47b5a2d61e39ae55a351 [2024-11-28 05:11:26,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:11:26,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:11:26,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:26,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:11:26,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:11:26,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:26" (1/1) ... [2024-11-28 05:11:26,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741e10c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:26, skipping insertion in model container [2024-11-28 05:11:26,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:26" (1/1) ... [2024-11-28 05:11:27,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:11:27,712 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_6764dce8-3c8c-4f13-85f1-06f44490ff06/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2024-11-28 05:11:27,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:27,873 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:11:27,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-28 05:11:27,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [380] [2024-11-28 05:11:27,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [415] [2024-11-28 05:11:27,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1483] [2024-11-28 05:11:27,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1823] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1858] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1875] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2277] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2286] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2652] [2024-11-28 05:11:27,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2749] [2024-11-28 05:11:28,003 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_6764dce8-3c8c-4f13-85f1-06f44490ff06/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2024-11-28 05:11:28,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:28,075 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:11:28,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28 WrapperNode [2024-11-28 05:11:28,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:28,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:28,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:11:28,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:11:28,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,164 INFO L138 Inliner]: procedures = 130, calls = 201, calls flagged for inlining = 58, calls inlined = 52, statements flattened = 950 [2024-11-28 05:11:28,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:28,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:11:28,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:11:28,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:11:28,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,189 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,243 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-28 05:11:28,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,267 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:11:28,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:11:28,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:11:28,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:11:28,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (1/1) ... [2024-11-28 05:11:28,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:28,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:28,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:11:28,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:11:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-28 05:11:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-28 05:11:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-28 05:11:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-28 05:11:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-28 05:11:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-28 05:11:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-28 05:11:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-28 05:11:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-28 05:11:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-28 05:11:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-28 05:11:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-28 05:11:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-28 05:11:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-28 05:11:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-28 05:11:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-28 05:11:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-28 05:11:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-28 05:11:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-28 05:11:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-28 05:11:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-28 05:11:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-28 05:11:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-28 05:11:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-28 05:11:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-28 05:11:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-28 05:11:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-28 05:11:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-28 05:11:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-28 05:11:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-28 05:11:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-28 05:11:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-28 05:11:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-28 05:11:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-28 05:11:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-28 05:11:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-28 05:11:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-28 05:11:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-28 05:11:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:11:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:11:28,710 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:11:28,713 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:11:30,196 INFO L? ?]: Removed 506 outVars from TransFormulas that were not future-live. [2024-11-28 05:11:30,196 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:11:30,235 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:11:30,235 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:11:30,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:30 BoogieIcfgContainer [2024-11-28 05:11:30,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:11:30,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:11:30,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:11:30,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:11:30,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:11:26" (1/3) ... [2024-11-28 05:11:30,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9608ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:30, skipping insertion in model container [2024-11-28 05:11:30,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:28" (2/3) ... [2024-11-28 05:11:30,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9608ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:30, skipping insertion in model container [2024-11-28 05:11:30,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:30" (3/3) ... [2024-11-28 05:11:30,249 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2024-11-28 05:11:30,266 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:11:30,268 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product23.cil.c that has 24 procedures, 375 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:11:30,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:11:30,376 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;@281f9e39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:11:30,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:11:30,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 297 states have (on average 1.5757575757575757) internal successors, (468), 300 states have internal predecessors, (468), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 05:11:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 05:11:30,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:30,423 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:30,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:30,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:30,431 INFO L85 PathProgramCache]: Analyzing trace with hash 590956865, now seen corresponding path program 1 times [2024-11-28 05:11:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:30,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939574347] [2024-11-28 05:11:30,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:30,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939574347] [2024-11-28 05:11:31,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939574347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:31,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362859036] [2024-11-28 05:11:31,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:31,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:31,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:31,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:31,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:11:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:32,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:11:32,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:11:32,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:32,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362859036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:32,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:32,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-28 05:11:32,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134054283] [2024-11-28 05:11:32,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:32,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:11:32,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:32,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:11:32,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:32,419 INFO L87 Difference]: Start difference. First operand has 375 states, 297 states have (on average 1.5757575757575757) internal successors, (468), 300 states have internal predecessors, (468), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:32,508 INFO L93 Difference]: Finished difference Result 558 states and 839 transitions. [2024-11-28 05:11:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:11:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-11-28 05:11:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:32,539 INFO L225 Difference]: With dead ends: 558 [2024-11-28 05:11:32,539 INFO L226 Difference]: Without dead ends: 368 [2024-11-28 05:11:32,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:32,551 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:32,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-28 05:11:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-28 05:11:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.570446735395189) internal successors, (457), 293 states have internal predecessors, (457), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:11:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 562 transitions. [2024-11-28 05:11:32,675 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 562 transitions. Word has length 136 [2024-11-28 05:11:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:32,677 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 562 transitions. [2024-11-28 05:11:32,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 562 transitions. [2024-11-28 05:11:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 05:11:32,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:32,685 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:32,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:32,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:11:32,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:32,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2059570105, now seen corresponding path program 1 times [2024-11-28 05:11:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:32,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620011285] [2024-11-28 05:11:32,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:33,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:33,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620011285] [2024-11-28 05:11:33,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620011285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:33,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827250735] [2024-11-28 05:11:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:33,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:33,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:33,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:33,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:11:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:33,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:11:33,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:11:34,049 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:34,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827250735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:34,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:34,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 05:11:34,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958319169] [2024-11-28 05:11:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:34,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:34,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:34,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:11:34,054 INFO L87 Difference]: Start difference. First operand 368 states and 562 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:34,151 INFO L93 Difference]: Finished difference Result 547 states and 816 transitions. [2024-11-28 05:11:34,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:34,152 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-11-28 05:11:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:34,160 INFO L225 Difference]: With dead ends: 547 [2024-11-28 05:11:34,162 INFO L226 Difference]: Without dead ends: 370 [2024-11-28 05:11:34,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:11:34,168 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 1 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:34,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-28 05:11:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2024-11-28 05:11:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 292 states have (on average 1.5684931506849316) internal successors, (458), 294 states have internal predecessors, (458), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:11:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 563 transitions. [2024-11-28 05:11:34,218 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 563 transitions. Word has length 136 [2024-11-28 05:11:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:34,220 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 563 transitions. [2024-11-28 05:11:34,220 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 563 transitions. [2024-11-28 05:11:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 05:11:34,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:34,225 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:34,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:11:34,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:34,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:34,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1992887578, now seen corresponding path program 1 times [2024-11-28 05:11:34,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104983554] [2024-11-28 05:11:34,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:34,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:11:34,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104983554] [2024-11-28 05:11:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104983554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:34,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251397837] [2024-11-28 05:11:34,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:34,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:34,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:34,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:34,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:11:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:35,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:35,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:11:35,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:35,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251397837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:35,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:35,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 05:11:35,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207987160] [2024-11-28 05:11:35,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:35,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:35,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:35,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:35,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:11:35,397 INFO L87 Difference]: Start difference. First operand 369 states and 563 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:35,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:35,475 INFO L93 Difference]: Finished difference Result 786 states and 1218 transitions. [2024-11-28 05:11:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-28 05:11:35,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:35,480 INFO L225 Difference]: With dead ends: 786 [2024-11-28 05:11:35,480 INFO L226 Difference]: Without dead ends: 443 [2024-11-28 05:11:35,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:11:35,486 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 134 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:35,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1095 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-28 05:11:35,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 435. [2024-11-28 05:11:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 344 states have (on average 1.5872093023255813) internal successors, (546), 346 states have internal predecessors, (546), 67 states have call successors, (67), 23 states have call predecessors, (67), 23 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 05:11:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 679 transitions. [2024-11-28 05:11:35,545 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 679 transitions. Word has length 144 [2024-11-28 05:11:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:35,546 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 679 transitions. [2024-11-28 05:11:35,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 679 transitions. [2024-11-28 05:11:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:11:35,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:35,555 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:35,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:35,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:35,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:35,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:35,757 INFO L85 PathProgramCache]: Analyzing trace with hash -44674633, now seen corresponding path program 1 times [2024-11-28 05:11:35,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:35,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026564996] [2024-11-28 05:11:35,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:11:36,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:36,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026564996] [2024-11-28 05:11:36,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026564996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:36,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543515547] [2024-11-28 05:11:36,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:36,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:36,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:36,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:36,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:11:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:36,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:11:36,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 05:11:36,773 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:36,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543515547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:36,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:36,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-28 05:11:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829071842] [2024-11-28 05:11:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:36,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:36,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:36,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:36,776 INFO L87 Difference]: Start difference. First operand 435 states and 679 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:36,917 INFO L93 Difference]: Finished difference Result 861 states and 1348 transitions. [2024-11-28 05:11:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-28 05:11:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:36,926 INFO L225 Difference]: With dead ends: 861 [2024-11-28 05:11:36,926 INFO L226 Difference]: Without dead ends: 437 [2024-11-28 05:11:36,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:36,928 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 2 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:36,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2205 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-28 05:11:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-28 05:11:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 345 states have (on average 1.5855072463768116) internal successors, (547), 348 states have internal predecessors, (547), 67 states have call successors, (67), 23 states have call predecessors, (67), 24 states have return successors, (68), 65 states have call predecessors, (68), 66 states have call successors, (68) [2024-11-28 05:11:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 682 transitions. [2024-11-28 05:11:36,966 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 682 transitions. Word has length 145 [2024-11-28 05:11:36,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:36,967 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 682 transitions. [2024-11-28 05:11:36,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 682 transitions. [2024-11-28 05:11:36,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 05:11:36,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:36,971 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:36,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:11:37,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-28 05:11:37,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:37,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1057722194, now seen corresponding path program 1 times [2024-11-28 05:11:37,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:37,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868638557] [2024-11-28 05:11:37,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:37,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 05:11:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:37,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868638557] [2024-11-28 05:11:37,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868638557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:37,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104700021] [2024-11-28 05:11:37,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:37,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:37,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:37,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:11:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:37,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:11:37,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 05:11:38,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104700021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:38,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:38,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-28 05:11:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349855765] [2024-11-28 05:11:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:38,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:38,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:38,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:11:38,094 INFO L87 Difference]: Start difference. First operand 437 states and 682 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:38,213 INFO L93 Difference]: Finished difference Result 863 states and 1353 transitions. [2024-11-28 05:11:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-28 05:11:38,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:38,219 INFO L225 Difference]: With dead ends: 863 [2024-11-28 05:11:38,220 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 05:11:38,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:11:38,223 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 2 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:38,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2191 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 05:11:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 05:11:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.583815028901734) internal successors, (548), 350 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2024-11-28 05:11:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 688 transitions. [2024-11-28 05:11:38,258 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 688 transitions. Word has length 146 [2024-11-28 05:11:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:38,259 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 688 transitions. [2024-11-28 05:11:38,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 688 transitions. [2024-11-28 05:11:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:11:38,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:38,263 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:38,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:38,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:38,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:38,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash 847575476, now seen corresponding path program 1 times [2024-11-28 05:11:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:38,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622070304] [2024-11-28 05:11:38,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:38,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:11:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:38,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622070304] [2024-11-28 05:11:38,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622070304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:38,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:38,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:11:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273919457] [2024-11-28 05:11:38,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:38,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:38,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:38,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:38,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:38,788 INFO L87 Difference]: Start difference. First operand 439 states and 688 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:38,865 INFO L93 Difference]: Finished difference Result 855 states and 1344 transitions. [2024-11-28 05:11:38,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:38,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-28 05:11:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:38,874 INFO L225 Difference]: With dead ends: 855 [2024-11-28 05:11:38,874 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 05:11:38,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:38,878 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 2 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:38,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2209 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 05:11:38,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 05:11:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.583815028901734) internal successors, (548), 350 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (72), 65 states have call predecessors, (72), 66 states have call successors, (72) [2024-11-28 05:11:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 687 transitions. [2024-11-28 05:11:38,919 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 687 transitions. Word has length 147 [2024-11-28 05:11:38,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:38,921 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 687 transitions. [2024-11-28 05:11:38,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:11:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 687 transitions. [2024-11-28 05:11:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 05:11:38,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:38,926 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:38,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:11:38,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:38,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1665277193, now seen corresponding path program 2 times [2024-11-28 05:11:38,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162466419] [2024-11-28 05:11:38,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:38,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:38,989 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:11:38,990 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:39,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:39,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162466419] [2024-11-28 05:11:39,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162466419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:39,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:39,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:11:39,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444998462] [2024-11-28 05:11:39,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:39,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:11:39,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:39,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:11:39,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:11:39,155 INFO L87 Difference]: Start difference. First operand 439 states and 687 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:39,228 INFO L93 Difference]: Finished difference Result 608 states and 931 transitions. [2024-11-28 05:11:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:11:39,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2024-11-28 05:11:39,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:39,235 INFO L225 Difference]: With dead ends: 608 [2024-11-28 05:11:39,236 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 05:11:39,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:11:39,238 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:39,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3333 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:39,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 05:11:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 05:11:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.5809248554913296) internal successors, (547), 350 states have internal predecessors, (547), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (72), 65 states have call predecessors, (72), 66 states have call successors, (72) [2024-11-28 05:11:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 686 transitions. [2024-11-28 05:11:39,276 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 686 transitions. Word has length 148 [2024-11-28 05:11:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:39,278 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 686 transitions. [2024-11-28 05:11:39,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:11:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 686 transitions. [2024-11-28 05:11:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 05:11:39,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:39,284 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:39,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:11:39,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:39,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1376331268, now seen corresponding path program 1 times [2024-11-28 05:11:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:39,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416701619] [2024-11-28 05:11:39,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:39,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:11:39,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:39,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416701619] [2024-11-28 05:11:39,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416701619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:39,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:39,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:11:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86830159] [2024-11-28 05:11:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:39,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:39,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:39,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:39,606 INFO L87 Difference]: Start difference. First operand 439 states and 686 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 05:11:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:39,681 INFO L93 Difference]: Finished difference Result 857 states and 1345 transitions. [2024-11-28 05:11:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:39,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 05:11:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:39,686 INFO L225 Difference]: With dead ends: 857 [2024-11-28 05:11:39,686 INFO L226 Difference]: Without dead ends: 441 [2024-11-28 05:11:39,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:39,689 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:39,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2208 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-28 05:11:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-28 05:11:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 347 states have (on average 1.579250720461095) internal successors, (548), 352 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 26 states have return successors, (74), 65 states have call predecessors, (74), 66 states have call successors, (74) [2024-11-28 05:11:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 689 transitions. [2024-11-28 05:11:39,720 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 689 transitions. Word has length 155 [2024-11-28 05:11:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:39,720 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 689 transitions. [2024-11-28 05:11:39,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 05:11:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 689 transitions. [2024-11-28 05:11:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 05:11:39,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:39,725 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:39,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:11:39,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:39,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:39,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1154031276, now seen corresponding path program 1 times [2024-11-28 05:11:39,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25340030] [2024-11-28 05:11:39,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 05:11:40,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:40,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25340030] [2024-11-28 05:11:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25340030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:40,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:11:40,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971872817] [2024-11-28 05:11:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:40,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:11:40,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:40,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:11:40,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:40,037 INFO L87 Difference]: Start difference. First operand 441 states and 689 transitions. Second operand has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 05:11:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:40,260 INFO L93 Difference]: Finished difference Result 859 states and 1344 transitions. [2024-11-28 05:11:40,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:11:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 156 [2024-11-28 05:11:40,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:40,268 INFO L225 Difference]: With dead ends: 859 [2024-11-28 05:11:40,269 INFO L226 Difference]: Without dead ends: 443 [2024-11-28 05:11:40,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:11:40,272 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 7 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:40,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3786 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-28 05:11:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-28 05:11:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 349 states have (on average 1.5759312320916905) internal successors, (550), 353 states have internal predecessors, (550), 67 states have call successors, (67), 24 states have call predecessors, (67), 26 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2024-11-28 05:11:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 690 transitions. [2024-11-28 05:11:40,308 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 690 transitions. Word has length 156 [2024-11-28 05:11:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:40,308 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 690 transitions. [2024-11-28 05:11:40,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 05:11:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 690 transitions. [2024-11-28 05:11:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 05:11:40,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:40,313 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:11:40,313 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:40,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1946303772, now seen corresponding path program 1 times [2024-11-28 05:11:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675537764] [2024-11-28 05:11:40,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 05:11:40,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:40,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675537764] [2024-11-28 05:11:40,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675537764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:40,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:40,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:11:40,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009929702] [2024-11-28 05:11:40,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:40,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:11:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:40,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:11:40,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:40,591 INFO L87 Difference]: Start difference. First operand 443 states and 690 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 05:11:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:40,865 INFO L93 Difference]: Finished difference Result 862 states and 1351 transitions. [2024-11-28 05:11:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:11:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2024-11-28 05:11:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:40,870 INFO L225 Difference]: With dead ends: 862 [2024-11-28 05:11:40,870 INFO L226 Difference]: Without dead ends: 446 [2024-11-28 05:11:40,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:11:40,874 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 5 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:40,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3800 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:11:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-28 05:11:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-28 05:11:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 351 states have (on average 1.5726495726495726) internal successors, (552), 356 states have internal predecessors, (552), 67 states have call successors, (67), 24 states have call predecessors, (67), 27 states have return successors, (78), 65 states have call predecessors, (78), 66 states have call successors, (78) [2024-11-28 05:11:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 697 transitions. [2024-11-28 05:11:40,903 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 697 transitions. Word has length 138 [2024-11-28 05:11:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:40,903 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 697 transitions. [2024-11-28 05:11:40,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 05:11:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 697 transitions. [2024-11-28 05:11:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 05:11:40,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:40,908 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:40,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:11:40,908 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:40,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:40,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1506725597, now seen corresponding path program 1 times [2024-11-28 05:11:40,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537022781] [2024-11-28 05:11:40,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:11:41,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537022781] [2024-11-28 05:11:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537022781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107737147] [2024-11-28 05:11:41,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:41,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:41,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:41,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:11:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:41,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:41,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:41,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:41,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107737147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:41,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:11:41,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-28 05:11:41,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096969357] [2024-11-28 05:11:41,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:41,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:11:41,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:41,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:11:41,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:11:41,929 INFO L87 Difference]: Start difference. First operand 446 states and 697 transitions. Second operand has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-28 05:11:43,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:43,073 INFO L93 Difference]: Finished difference Result 1299 states and 2121 transitions. [2024-11-28 05:11:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:11:43,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 139 [2024-11-28 05:11:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:43,082 INFO L225 Difference]: With dead ends: 1299 [2024-11-28 05:11:43,082 INFO L226 Difference]: Without dead ends: 884 [2024-11-28 05:11:43,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:11:43,085 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 1391 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:43,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 3992 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:11:43,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-28 05:11:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 860. [2024-11-28 05:11:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 686 states have (on average 1.6239067055393586) internal successors, (1114), 690 states have internal predecessors, (1114), 146 states have call successors, (146), 25 states have call predecessors, (146), 27 states have return successors, (167), 144 states have call predecessors, (167), 145 states have call successors, (167) [2024-11-28 05:11:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1427 transitions. [2024-11-28 05:11:43,185 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1427 transitions. Word has length 139 [2024-11-28 05:11:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:43,186 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1427 transitions. [2024-11-28 05:11:43,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-28 05:11:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1427 transitions. [2024-11-28 05:11:43,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 05:11:43,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:43,196 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:43,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:11:43,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6764dce8-3c8c-4f13-85f1-06f44490ff06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:43,397 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:43,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:43,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1161614112, now seen corresponding path program 1 times [2024-11-28 05:11:43,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:43,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927781700] [2024-11-28 05:11:43,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:43,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:43,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927781700] [2024-11-28 05:11:43,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927781700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:43,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:43,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:43,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580907512] [2024-11-28 05:11:43,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:43,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:43,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:43,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:43,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:43,543 INFO L87 Difference]: Start difference. First operand 860 states and 1427 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:43,648 INFO L93 Difference]: Finished difference Result 2030 states and 3427 transitions. [2024-11-28 05:11:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2024-11-28 05:11:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:43,660 INFO L225 Difference]: With dead ends: 2030 [2024-11-28 05:11:43,660 INFO L226 Difference]: Without dead ends: 1251 [2024-11-28 05:11:43,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:43,665 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 131 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:43,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:43,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-11-28 05:11:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1243. [2024-11-28 05:11:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 990 states have (on average 1.6434343434343435) internal successors, (1627), 994 states have internal predecessors, (1627), 225 states have call successors, (225), 25 states have call predecessors, (225), 27 states have return successors, (256), 223 states have call predecessors, (256), 224 states have call successors, (256) [2024-11-28 05:11:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2108 transitions. [2024-11-28 05:11:43,796 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2108 transitions. Word has length 162 [2024-11-28 05:11:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:43,797 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 2108 transitions. [2024-11-28 05:11:43,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:43,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2108 transitions. [2024-11-28 05:11:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 05:11:43,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:43,808 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:43,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:11:43,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:43,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash 884330390, now seen corresponding path program 1 times [2024-11-28 05:11:43,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:43,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806465369] [2024-11-28 05:11:43,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:43,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:43,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806465369] [2024-11-28 05:11:43,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806465369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:43,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284860114] [2024-11-28 05:11:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:43,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:43,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:43,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:43,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:43,904 INFO L87 Difference]: Start difference. First operand 1243 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:44,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:44,028 INFO L93 Difference]: Finished difference Result 2987 states and 5103 transitions. [2024-11-28 05:11:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-11-28 05:11:44,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:44,045 INFO L225 Difference]: With dead ends: 2987 [2024-11-28 05:11:44,045 INFO L226 Difference]: Without dead ends: 1876 [2024-11-28 05:11:44,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:44,051 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 129 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:44,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1114 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:44,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-28 05:11:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1868. [2024-11-28 05:11:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1496 states have (on average 1.6530748663101604) internal successors, (2473), 1500 states have internal predecessors, (2473), 344 states have call successors, (344), 25 states have call predecessors, (344), 27 states have return successors, (375), 342 states have call predecessors, (375), 343 states have call successors, (375) [2024-11-28 05:11:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3192 transitions. [2024-11-28 05:11:44,216 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3192 transitions. Word has length 144 [2024-11-28 05:11:44,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:44,219 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 3192 transitions. [2024-11-28 05:11:44,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3192 transitions. [2024-11-28 05:11:44,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 05:11:44,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:44,236 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:44,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:11:44,236 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:44,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1644396626, now seen corresponding path program 1 times [2024-11-28 05:11:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:44,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038767397] [2024-11-28 05:11:44,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:44,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:44,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:44,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038767397] [2024-11-28 05:11:44,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038767397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:44,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:44,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:44,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254396302] [2024-11-28 05:11:44,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:44,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:44,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:44,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:44,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:44,344 INFO L87 Difference]: Start difference. First operand 1868 states and 3192 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:44,550 INFO L93 Difference]: Finished difference Result 4439 states and 7652 transitions. [2024-11-28 05:11:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:44,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2024-11-28 05:11:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:44,573 INFO L225 Difference]: With dead ends: 4439 [2024-11-28 05:11:44,574 INFO L226 Difference]: Without dead ends: 2834 [2024-11-28 05:11:44,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:44,582 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 127 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:44,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2024-11-28 05:11:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2826. [2024-11-28 05:11:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2292 states have (on average 1.6609947643979057) internal successors, (3807), 2296 states have internal predecessors, (3807), 506 states have call successors, (506), 25 states have call predecessors, (506), 27 states have return successors, (553), 504 states have call predecessors, (553), 505 states have call successors, (553) [2024-11-28 05:11:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 4866 transitions. [2024-11-28 05:11:44,799 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 4866 transitions. Word has length 164 [2024-11-28 05:11:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:44,800 INFO L471 AbstractCegarLoop]: Abstraction has 2826 states and 4866 transitions. [2024-11-28 05:11:44,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 4866 transitions. [2024-11-28 05:11:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 05:11:44,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:44,823 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:44,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:11:44,824 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:44,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:44,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1351266219, now seen corresponding path program 1 times [2024-11-28 05:11:44,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:44,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884846528] [2024-11-28 05:11:44,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:44,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:44,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:44,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884846528] [2024-11-28 05:11:44,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884846528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:44,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:44,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:44,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667562646] [2024-11-28 05:11:44,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:44,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:44,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:44,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:44,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:44,937 INFO L87 Difference]: Start difference. First operand 2826 states and 4866 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:45,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:45,188 INFO L93 Difference]: Finished difference Result 6732 states and 11684 transitions. [2024-11-28 05:11:45,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:45,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2024-11-28 05:11:45,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:45,224 INFO L225 Difference]: With dead ends: 6732 [2024-11-28 05:11:45,224 INFO L226 Difference]: Without dead ends: 4381 [2024-11-28 05:11:45,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:45,237 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 125 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:45,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2024-11-28 05:11:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4373. [2024-11-28 05:11:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4373 states, 3594 states have (on average 1.6666666666666667) internal successors, (5990), 3598 states have internal predecessors, (5990), 751 states have call successors, (751), 25 states have call predecessors, (751), 27 states have return successors, (824), 749 states have call predecessors, (824), 750 states have call successors, (824) [2024-11-28 05:11:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 7565 transitions. [2024-11-28 05:11:45,661 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 7565 transitions. Word has length 146 [2024-11-28 05:11:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:45,661 INFO L471 AbstractCegarLoop]: Abstraction has 4373 states and 7565 transitions. [2024-11-28 05:11:45,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 7565 transitions. [2024-11-28 05:11:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 05:11:45,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:45,705 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:45,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:11:45,705 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:45,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1256202518, now seen corresponding path program 1 times [2024-11-28 05:11:45,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:45,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917626450] [2024-11-28 05:11:45,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:45,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:45,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:45,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917626450] [2024-11-28 05:11:45,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917626450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:45,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:45,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:45,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106206254] [2024-11-28 05:11:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:45,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:45,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:45,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:45,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:45,812 INFO L87 Difference]: Start difference. First operand 4373 states and 7565 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:46,159 INFO L93 Difference]: Finished difference Result 10826 states and 18836 transitions. [2024-11-28 05:11:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:46,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2024-11-28 05:11:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:46,213 INFO L225 Difference]: With dead ends: 10826 [2024-11-28 05:11:46,214 INFO L226 Difference]: Without dead ends: 7169 [2024-11-28 05:11:46,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:46,232 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 123 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:46,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1122 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-11-28 05:11:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7161. [2024-11-28 05:11:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7161 states, 5889 states have (on average 1.663100696213279) internal successors, (9794), 5893 states have internal predecessors, (9794), 1244 states have call successors, (1244), 25 states have call predecessors, (1244), 27 states have return successors, (1361), 1242 states have call predecessors, (1361), 1243 states have call successors, (1361) [2024-11-28 05:11:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 12399 transitions. [2024-11-28 05:11:46,887 INFO L78 Accepts]: Start accepts. Automaton has 7161 states and 12399 transitions. Word has length 166 [2024-11-28 05:11:46,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:46,888 INFO L471 AbstractCegarLoop]: Abstraction has 7161 states and 12399 transitions. [2024-11-28 05:11:46,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7161 states and 12399 transitions. [2024-11-28 05:11:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 05:11:46,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:46,936 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:46,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:11:46,936 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:46,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 692929811, now seen corresponding path program 1 times [2024-11-28 05:11:46,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:46,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163055084] [2024-11-28 05:11:46,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:46,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:47,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:47,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163055084] [2024-11-28 05:11:47,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163055084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:47,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:47,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:47,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109195016] [2024-11-28 05:11:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:47,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:47,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:47,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:47,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:47,041 INFO L87 Difference]: Start difference. First operand 7161 states and 12399 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:47,570 INFO L93 Difference]: Finished difference Result 18113 states and 31556 transitions. [2024-11-28 05:11:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:47,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2024-11-28 05:11:47,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:47,669 INFO L225 Difference]: With dead ends: 18113 [2024-11-28 05:11:47,669 INFO L226 Difference]: Without dead ends: 12054 [2024-11-28 05:11:47,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:47,700 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 121 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:47,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12054 states. [2024-11-28 05:11:48,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12054 to 12046. [2024-11-28 05:11:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12046 states, 9952 states have (on average 1.6630827974276527) internal successors, (16551), 9956 states have internal predecessors, (16551), 2066 states have call successors, (2066), 25 states have call predecessors, (2066), 27 states have return successors, (2261), 2064 states have call predecessors, (2261), 2065 states have call successors, (2261) [2024-11-28 05:11:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12046 states to 12046 states and 20878 transitions. [2024-11-28 05:11:48,826 INFO L78 Accepts]: Start accepts. Automaton has 12046 states and 20878 transitions. Word has length 167 [2024-11-28 05:11:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:48,826 INFO L471 AbstractCegarLoop]: Abstraction has 12046 states and 20878 transitions. [2024-11-28 05:11:48,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 12046 states and 20878 transitions. [2024-11-28 05:11:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 05:11:48,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:48,889 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:48,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:11:48,891 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:48,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1072149416, now seen corresponding path program 1 times [2024-11-28 05:11:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949577867] [2024-11-28 05:11:48,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:48,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:48,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:48,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949577867] [2024-11-28 05:11:48,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949577867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:48,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:48,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439125829] [2024-11-28 05:11:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:49,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:49,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:49,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:49,003 INFO L87 Difference]: Start difference. First operand 12046 states and 20878 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:49,823 INFO L93 Difference]: Finished difference Result 28833 states and 49897 transitions. [2024-11-28 05:11:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2024-11-28 05:11:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:50,051 INFO L225 Difference]: With dead ends: 28833 [2024-11-28 05:11:50,051 INFO L226 Difference]: Without dead ends: 18841 [2024-11-28 05:11:50,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:50,091 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 119 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:50,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1084 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2024-11-28 05:11:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 18833. [2024-11-28 05:11:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18833 states, 15536 states have (on average 1.6384526261585994) internal successors, (25455), 15540 states have internal predecessors, (25455), 3269 states have call successors, (3269), 25 states have call predecessors, (3269), 27 states have return successors, (3608), 3267 states have call predecessors, (3608), 3268 states have call successors, (3608) [2024-11-28 05:11:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18833 states to 18833 states and 32332 transitions. [2024-11-28 05:11:51,319 INFO L78 Accepts]: Start accepts. Automaton has 18833 states and 32332 transitions. Word has length 149 [2024-11-28 05:11:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:51,319 INFO L471 AbstractCegarLoop]: Abstraction has 18833 states and 32332 transitions. [2024-11-28 05:11:51,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 18833 states and 32332 transitions. [2024-11-28 05:11:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 05:11:51,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:51,387 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:51,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:11:51,388 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:51,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:51,390 INFO L85 PathProgramCache]: Analyzing trace with hash -733179500, now seen corresponding path program 1 times [2024-11-28 05:11:51,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:51,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321557217] [2024-11-28 05:11:51,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:51,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:11:51,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321557217] [2024-11-28 05:11:51,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321557217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:51,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:51,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343744495] [2024-11-28 05:11:51,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:51,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:51,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:51,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:51,498 INFO L87 Difference]: Start difference. First operand 18833 states and 32332 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:53,203 INFO L93 Difference]: Finished difference Result 49825 states and 85835 transitions. [2024-11-28 05:11:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:53,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2024-11-28 05:11:53,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:53,386 INFO L225 Difference]: With dead ends: 49825 [2024-11-28 05:11:53,386 INFO L226 Difference]: Without dead ends: 33659 [2024-11-28 05:11:53,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:53,432 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 117 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:53,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1112 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:53,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33659 states. [2024-11-28 05:11:55,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33659 to 33651. [2024-11-28 05:11:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33651 states, 27904 states have (on average 1.634819380733945) internal successors, (45618), 27908 states have internal predecessors, (45618), 5719 states have call successors, (5719), 25 states have call predecessors, (5719), 27 states have return successors, (6332), 5717 states have call predecessors, (6332), 5718 states have call successors, (6332) [2024-11-28 05:11:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33651 states to 33651 states and 57669 transitions. [2024-11-28 05:11:55,647 INFO L78 Accepts]: Start accepts. Automaton has 33651 states and 57669 transitions. Word has length 169 [2024-11-28 05:11:55,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:55,647 INFO L471 AbstractCegarLoop]: Abstraction has 33651 states and 57669 transitions. [2024-11-28 05:11:55,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:11:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 33651 states and 57669 transitions. [2024-11-28 05:11:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 05:11:55,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:55,728 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:55,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:11:55,728 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:55,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash 67593982, now seen corresponding path program 1 times [2024-11-28 05:11:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:55,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402206847] [2024-11-28 05:11:55,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:11:55,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:55,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402206847] [2024-11-28 05:11:55,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402206847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:55,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:55,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643660258] [2024-11-28 05:11:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:55,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:55,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:55,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:55,830 INFO L87 Difference]: Start difference. First operand 33651 states and 57669 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:11:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:58,855 INFO L93 Difference]: Finished difference Result 91862 states and 157867 transitions. [2024-11-28 05:11:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2024-11-28 05:11:58,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:59,193 INFO L225 Difference]: With dead ends: 91862 [2024-11-28 05:11:59,193 INFO L226 Difference]: Without dead ends: 61757 [2024-11-28 05:11:59,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:59,278 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 115 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:59,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61757 states. [2024-11-28 05:12:02,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61757 to 61749. [2024-11-28 05:12:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61749 states, 51489 states have (on average 1.6301345918545709) internal successors, (83934), 51493 states have internal predecessors, (83934), 10232 states have call successors, (10232), 25 states have call predecessors, (10232), 27 states have return successors, (11377), 10230 states have call predecessors, (11377), 10231 states have call successors, (11377) [2024-11-28 05:12:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61749 states to 61749 states and 105543 transitions. [2024-11-28 05:12:03,185 INFO L78 Accepts]: Start accepts. Automaton has 61749 states and 105543 transitions. Word has length 151 [2024-11-28 05:12:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:03,186 INFO L471 AbstractCegarLoop]: Abstraction has 61749 states and 105543 transitions. [2024-11-28 05:12:03,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:12:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 61749 states and 105543 transitions. [2024-11-28 05:12:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 05:12:03,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:03,304 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:03,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:12:03,304 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:03,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash -11291084, now seen corresponding path program 1 times [2024-11-28 05:12:03,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812572416] [2024-11-28 05:12:03,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 05:12:03,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812572416] [2024-11-28 05:12:03,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812572416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:03,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:03,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:12:03,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691984665] [2024-11-28 05:12:03,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:03,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:12:03,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:03,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:12:03,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:12:03,452 INFO L87 Difference]: Start difference. First operand 61749 states and 105543 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:12:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:06,665 INFO L93 Difference]: Finished difference Result 115719 states and 198156 transitions. [2024-11-28 05:12:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:12:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2024-11-28 05:12:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:07,474 INFO L225 Difference]: With dead ends: 115719 [2024-11-28 05:12:07,474 INFO L226 Difference]: Without dead ends: 115542 [2024-11-28 05:12:07,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:12:07,516 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 110 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:07,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:12:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115542 states. [2024-11-28 05:12:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115542 to 115534. [2024-11-28 05:12:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115534 states, 96906 states have (on average 1.6243989020287701) internal successors, (157414), 96910 states have internal predecessors, (157414), 18600 states have call successors, (18600), 25 states have call predecessors, (18600), 27 states have return successors, (20791), 18598 states have call predecessors, (20791), 18599 states have call successors, (20791) [2024-11-28 05:12:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115534 states to 115534 states and 196805 transitions. [2024-11-28 05:12:13,105 INFO L78 Accepts]: Start accepts. Automaton has 115534 states and 196805 transitions. Word has length 171 [2024-11-28 05:12:13,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:13,105 INFO L471 AbstractCegarLoop]: Abstraction has 115534 states and 196805 transitions. [2024-11-28 05:12:13,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 05:12:13,106 INFO L276 IsEmpty]: Start isEmpty. Operand 115534 states and 196805 transitions. [2024-11-28 05:12:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 05:12:13,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:13,211 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:13,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:12:13,211 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:13,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash -616228513, now seen corresponding path program 1 times [2024-11-28 05:12:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:13,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015559134] [2024-11-28 05:12:13,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:12:13,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:13,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015559134] [2024-11-28 05:12:13,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015559134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:13,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:12:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766287905] [2024-11-28 05:12:13,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:13,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:12:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:13,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:12:13,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:12:13,520 INFO L87 Difference]: Start difference. First operand 115534 states and 196805 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:12:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:17,120 INFO L93 Difference]: Finished difference Result 115878 states and 197298 transitions. [2024-11-28 05:12:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:12:17,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2024-11-28 05:12:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:17,614 INFO L225 Difference]: With dead ends: 115878 [2024-11-28 05:12:17,614 INFO L226 Difference]: Without dead ends: 115709 [2024-11-28 05:12:17,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:12:17,663 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 488 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:17,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 2389 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:12:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115709 states.