./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:50,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:50,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:34:50,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:50,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:50,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:50,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:50,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:50,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:50,305 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:50,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:34:50,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:34:50,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:50,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:50,307 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:50,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:50,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:34:50,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:34:50,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:50,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:50,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:50,310 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:50,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:50,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:50,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:50,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:50,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:34:50,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:34:50,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:34:50,313 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_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2024-11-23 22:34:50,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:50,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:50,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:50,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:50,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:50,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2024-11-23 22:34:53,820 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/data/ffac319e7/d180bddac1f04194908fcd9e9ca834b3/FLAGeac2dcd78 [2024-11-23 22:34:54,309 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:54,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2024-11-23 22:34:54,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/data/ffac319e7/d180bddac1f04194908fcd9e9ca834b3/FLAGeac2dcd78 [2024-11-23 22:34:54,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/data/ffac319e7/d180bddac1f04194908fcd9e9ca834b3 [2024-11-23 22:34:54,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:54,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:54,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:54,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:54,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:54,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:54" (1/1) ... [2024-11-23 22:34:54,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0822bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:54, skipping insertion in model container [2024-11-23 22:34:54,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:54" (1/1) ... [2024-11-23 22:34:54,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:55,278 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_801c289c-e823-43cd-9e0c-f42c6372178c/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2024-11-23 22:34:55,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:55,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:55,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-23 22:34:55,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [460] [2024-11-23 22:34:55,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1540] [2024-11-23 22:34:55,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1573] [2024-11-23 22:34:55,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1939] [2024-11-23 22:34:55,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2172] [2024-11-23 22:34:55,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2190] [2024-11-23 22:34:55,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2327] [2024-11-23 22:34:55,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2766] [2024-11-23 22:34:55,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2775] [2024-11-23 22:34:55,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2813] [2024-11-23 22:34:55,551 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_801c289c-e823-43cd-9e0c-f42c6372178c/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2024-11-23 22:34:55,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:55,615 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:55,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55 WrapperNode [2024-11-23 22:34:55,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:55,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:55,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:55,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:55,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,724 INFO L138 Inliner]: procedures = 137, calls = 226, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1146 [2024-11-23 22:34:55,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:55,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:55,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:55,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:55,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,777 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]. [2024-11-23 22:34:55,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,806 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:55,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:55,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:55,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:55,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:55,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:55,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-23 22:34:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-23 22:34:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-23 22:34:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-23 22:34:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-23 22:34:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-23 22:34:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-23 22:34:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-23 22:34:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-23 22:34:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-23 22:34:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-23 22:34:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-23 22:34:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-23 22:34:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-23 22:34:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-23 22:34:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-23 22:34:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-23 22:34:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-23 22:34:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-23 22:34:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-23 22:34:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-23 22:34:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-23 22:34:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-23 22:34:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-23 22:34:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-23 22:34:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-23 22:34:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-23 22:34:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-23 22:34:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-23 22:34:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-23 22:34:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-23 22:34:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-23 22:34:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:34:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-23 22:34:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-23 22:34:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-23 22:34:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-23 22:34:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-23 22:34:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-23 22:34:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-23 22:34:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-23 22:34:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-23 22:34:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-23 22:34:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-23 22:34:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-23 22:34:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-23 22:34:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:56,351 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:56,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:58,103 INFO L? ?]: Removed 607 outVars from TransFormulas that were not future-live. [2024-11-23 22:34:58,103 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:34:58,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:34:58,143 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:34:58,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:58 BoogieIcfgContainer [2024-11-23 22:34:58,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:34:58,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:34:58,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:34:58,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:34:58,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:54" (1/3) ... [2024-11-23 22:34:58,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a21ee4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:58, skipping insertion in model container [2024-11-23 22:34:58,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (2/3) ... [2024-11-23 22:34:58,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a21ee4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:58, skipping insertion in model container [2024-11-23 22:34:58,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:58" (3/3) ... [2024-11-23 22:34:58,159 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2024-11-23 22:34:58,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:34:58,182 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec11_product35.cil.c that has 30 procedures, 462 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:34:58,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:34:58,322 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;@588a6573, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:34:58,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:34:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 462 states, 357 states have (on average 1.5378151260504203) internal successors, (549), 362 states have internal predecessors, (549), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-23 22:34:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 22:34:58,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:34:58,354 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:58,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:34:58,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash -530421661, now seen corresponding path program 1 times [2024-11-23 22:34:58,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:34:58,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92760747] [2024-11-23 22:34:58,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-23 22:34:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:34:59,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92760747] [2024-11-23 22:34:59,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92760747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:34:59,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124434520] [2024-11-23 22:34:59,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:59,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:34:59,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:59,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:34:59,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:35:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:00,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:35:00,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-23 22:35:00,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:00,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124434520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:00,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:00,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-23 22:35:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656312664] [2024-11-23 22:35:00,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:35:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:00,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:35:00,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:00,273 INFO L87 Difference]: Start difference. First operand has 462 states, 357 states have (on average 1.5378151260504203) internal successors, (549), 362 states have internal predecessors, (549), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:00,379 INFO L93 Difference]: Finished difference Result 727 states and 1077 transitions. [2024-11-23 22:35:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:35:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2024-11-23 22:35:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:00,402 INFO L225 Difference]: With dead ends: 727 [2024-11-23 22:35:00,402 INFO L226 Difference]: Without dead ends: 455 [2024-11-23 22:35:00,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:00,411 INFO L435 NwaCegarLoop]: 693 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, 693 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 [2024-11-23 22:35:00,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:00,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-23 22:35:00,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-23 22:35:00,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 351 states have (on average 1.5327635327635327) internal successors, (538), 355 states have internal predecessors, (538), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 22:35:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 685 transitions. [2024-11-23 22:35:00,526 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 685 transitions. Word has length 167 [2024-11-23 22:35:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:00,529 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 685 transitions. [2024-11-23 22:35:00,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 685 transitions. [2024-11-23 22:35:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 22:35:00,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:00,545 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:00,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:35:00,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:35:00,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:00,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1984275299, now seen corresponding path program 1 times [2024-11-23 22:35:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:00,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972266709] [2024-11-23 22:35:00,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:00,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-23 22:35:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972266709] [2024-11-23 22:35:01,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972266709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315390654] [2024-11-23 22:35:01,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:01,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:01,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:01,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:01,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:35:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:01,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:35:01,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-23 22:35:01,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315390654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:01,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:01,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301570101] [2024-11-23 22:35:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:01,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:01,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:01,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:01,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:01,783 INFO L87 Difference]: Start difference. First operand 455 states and 685 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:01,937 INFO L93 Difference]: Finished difference Result 716 states and 1054 transitions. [2024-11-23 22:35:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2024-11-23 22:35:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:01,950 INFO L225 Difference]: With dead ends: 716 [2024-11-23 22:35:01,950 INFO L226 Difference]: Without dead ends: 457 [2024-11-23 22:35:01,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:01,953 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 1 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1364 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 [2024-11-23 22:35:01,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1364 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-23 22:35:01,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2024-11-23 22:35:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 22:35:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2024-11-23 22:35:02,012 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 167 [2024-11-23 22:35:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:02,016 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2024-11-23 22:35:02,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2024-11-23 22:35:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 22:35:02,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:02,023 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:02,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:35:02,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:02,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:02,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1856779975, now seen corresponding path program 1 times [2024-11-23 22:35:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:02,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584662744] [2024-11-23 22:35:02,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 22:35:02,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:02,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584662744] [2024-11-23 22:35:02,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584662744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:02,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337832262] [2024-11-23 22:35:02,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:02,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:02,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:02,618 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:02,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:35:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:03,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:03,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 22:35:03,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:03,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337832262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:03,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:03,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:03,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244174366] [2024-11-23 22:35:03,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:03,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:03,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:03,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:03,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:03,137 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-23 22:35:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:03,209 INFO L93 Difference]: Finished difference Result 965 states and 1472 transitions. [2024-11-23 22:35:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 156 [2024-11-23 22:35:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:03,217 INFO L225 Difference]: With dead ends: 965 [2024-11-23 22:35:03,218 INFO L226 Difference]: Without dead ends: 535 [2024-11-23 22:35:03,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:03,225 INFO L435 NwaCegarLoop]: 696 mSDtfsCounter, 142 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1335 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 [2024-11-23 22:35:03,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1335 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-23 22:35:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 527. [2024-11-23 22:35:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 409 states have (on average 1.5525672371638142) internal successors, (635), 413 states have internal predecessors, (635), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-23 22:35:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 810 transitions. [2024-11-23 22:35:03,270 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 810 transitions. Word has length 156 [2024-11-23 22:35:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:03,270 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 810 transitions. [2024-11-23 22:35:03,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-23 22:35:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 810 transitions. [2024-11-23 22:35:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-23 22:35:03,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:03,278 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:03,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:03,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:03,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:03,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2146193701, now seen corresponding path program 1 times [2024-11-23 22:35:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:03,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161779527] [2024-11-23 22:35:03,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 22:35:03,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161779527] [2024-11-23 22:35:03,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161779527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378749116] [2024-11-23 22:35:03,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:03,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:03,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:03,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:03,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:35:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:04,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:35:04,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 22:35:04,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:04,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378749116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:04,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:04,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 22:35:04,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264296933] [2024-11-23 22:35:04,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:04,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:04,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:04,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:04,419 INFO L87 Difference]: Start difference. First operand 527 states and 810 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-11-23 22:35:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:04,526 INFO L93 Difference]: Finished difference Result 1045 states and 1610 transitions. [2024-11-23 22:35:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 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 157 [2024-11-23 22:35:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:04,531 INFO L225 Difference]: With dead ends: 1045 [2024-11-23 22:35:04,532 INFO L226 Difference]: Without dead ends: 529 [2024-11-23 22:35:04,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:04,534 INFO L435 NwaCegarLoop]: 677 mSDtfsCounter, 2 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2697 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 [2024-11-23 22:35:04,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2697 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:04,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-23 22:35:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2024-11-23 22:35:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 410 states have (on average 1.551219512195122) internal successors, (636), 415 states have internal predecessors, (636), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-23 22:35:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 813 transitions. [2024-11-23 22:35:04,562 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 813 transitions. Word has length 157 [2024-11-23 22:35:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:04,562 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 813 transitions. [2024-11-23 22:35:04,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-11-23 22:35:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 813 transitions. [2024-11-23 22:35:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 22:35:04,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:04,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:04,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 22:35:04,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:04,770 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:04,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1525393719, now seen corresponding path program 1 times [2024-11-23 22:35:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567698115] [2024-11-23 22:35:04,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:04,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 22:35:05,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567698115] [2024-11-23 22:35:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567698115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789410515] [2024-11-23 22:35:05,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:05,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:05,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:05,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:05,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:35:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:05,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:35:05,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 22:35:05,572 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789410515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:05,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:05,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-23 22:35:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574438831] [2024-11-23 22:35:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:05,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:05,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:05,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:35:05,574 INFO L87 Difference]: Start difference. First operand 529 states and 813 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-23 22:35:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:05,676 INFO L93 Difference]: Finished difference Result 1047 states and 1615 transitions. [2024-11-23 22:35:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 158 [2024-11-23 22:35:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:05,682 INFO L225 Difference]: With dead ends: 1047 [2024-11-23 22:35:05,683 INFO L226 Difference]: Without dead ends: 531 [2024-11-23 22:35:05,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:35:05,686 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 2 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:05,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2683 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-23 22:35:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-23 22:35:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 411 states have (on average 1.5498783454987834) internal successors, (637), 417 states have internal predecessors, (637), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2024-11-23 22:35:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 819 transitions. [2024-11-23 22:35:05,738 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 819 transitions. Word has length 158 [2024-11-23 22:35:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:05,739 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 819 transitions. [2024-11-23 22:35:05,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-23 22:35:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 819 transitions. [2024-11-23 22:35:05,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-23 22:35:05,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:05,745 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:05,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:05,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:05,949 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:05,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:05,950 INFO L85 PathProgramCache]: Analyzing trace with hash -562934054, now seen corresponding path program 1 times [2024-11-23 22:35:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:05,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638792001] [2024-11-23 22:35:05,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:05,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:06,344 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 22:35:06,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:06,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638792001] [2024-11-23 22:35:06,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638792001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:06,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:06,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:35:06,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750644393] [2024-11-23 22:35:06,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:06,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:06,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:06,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:06,347 INFO L87 Difference]: Start difference. First operand 531 states and 819 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-23 22:35:06,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:06,432 INFO L93 Difference]: Finished difference Result 1039 states and 1606 transitions. [2024-11-23 22:35:06,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:06,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 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 159 [2024-11-23 22:35:06,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:06,441 INFO L225 Difference]: With dead ends: 1039 [2024-11-23 22:35:06,441 INFO L226 Difference]: Without dead ends: 531 [2024-11-23 22:35:06,443 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 [2024-11-23 22:35:06,443 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 2 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2701 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 [2024-11-23 22:35:06,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2701 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-23 22:35:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-23 22:35:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 411 states have (on average 1.5498783454987834) internal successors, (637), 417 states have internal predecessors, (637), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2024-11-23 22:35:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 818 transitions. [2024-11-23 22:35:06,480 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 818 transitions. Word has length 159 [2024-11-23 22:35:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:06,480 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 818 transitions. [2024-11-23 22:35:06,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-23 22:35:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 818 transitions. [2024-11-23 22:35:06,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 22:35:06,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:06,484 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:06,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:35:06,485 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:06,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1471200812, now seen corresponding path program 2 times [2024-11-23 22:35:06,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:06,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865724643] [2024-11-23 22:35:06,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:35:06,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:06,530 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 22:35:06,531 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:35:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 22:35:06,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:06,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865724643] [2024-11-23 22:35:06,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865724643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:06,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:06,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661339095] [2024-11-23 22:35:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:06,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:06,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:06,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:06,805 INFO L87 Difference]: Start difference. First operand 531 states and 818 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:35:07,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:07,937 INFO L93 Difference]: Finished difference Result 1245 states and 1928 transitions. [2024-11-23 22:35:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:35:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 160 [2024-11-23 22:35:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:07,948 INFO L225 Difference]: With dead ends: 1245 [2024-11-23 22:35:07,948 INFO L226 Difference]: Without dead ends: 992 [2024-11-23 22:35:07,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:35:07,952 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 1307 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:07,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 4013 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:35:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-11-23 22:35:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 908. [2024-11-23 22:35:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 713 states have (on average 1.5876577840112203) internal successors, (1132), 721 states have internal predecessors, (1132), 143 states have call successors, (143), 51 states have call predecessors, (143), 51 states have return successors, (158), 138 states have call predecessors, (158), 142 states have call successors, (158) [2024-11-23 22:35:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1433 transitions. [2024-11-23 22:35:08,039 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1433 transitions. Word has length 160 [2024-11-23 22:35:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:08,040 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1433 transitions. [2024-11-23 22:35:08,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:35:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1433 transitions. [2024-11-23 22:35:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-23 22:35:08,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:08,048 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:08,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:35:08,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:08,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:08,049 INFO L85 PathProgramCache]: Analyzing trace with hash -300866094, now seen corresponding path program 1 times [2024-11-23 22:35:08,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:08,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362305035] [2024-11-23 22:35:08,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-23 22:35:08,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:08,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362305035] [2024-11-23 22:35:08,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362305035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:08,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:08,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:35:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758103450] [2024-11-23 22:35:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:08,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:08,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:08,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:08,383 INFO L87 Difference]: Start difference. First operand 908 states and 1433 transitions. Second operand has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 22:35:08,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:08,490 INFO L93 Difference]: Finished difference Result 1785 states and 2826 transitions. [2024-11-23 22:35:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:08,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 180 [2024-11-23 22:35:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:08,499 INFO L225 Difference]: With dead ends: 1785 [2024-11-23 22:35:08,499 INFO L226 Difference]: Without dead ends: 912 [2024-11-23 22:35:08,503 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 [2024-11-23 22:35:08,503 INFO L435 NwaCegarLoop]: 679 mSDtfsCounter, 1 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2704 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 [2024-11-23 22:35:08,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2704 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:08,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-23 22:35:08,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 912. [2024-11-23 22:35:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 715 states have (on average 1.586013986013986) internal successors, (1134), 725 states have internal predecessors, (1134), 143 states have call successors, (143), 51 states have call predecessors, (143), 53 states have return successors, (161), 138 states have call predecessors, (161), 142 states have call successors, (161) [2024-11-23 22:35:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1438 transitions. [2024-11-23 22:35:08,573 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1438 transitions. Word has length 180 [2024-11-23 22:35:08,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:08,573 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1438 transitions. [2024-11-23 22:35:08,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 22:35:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1438 transitions. [2024-11-23 22:35:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 22:35:08,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:08,580 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:08,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:35:08,580 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash 395222434, now seen corresponding path program 1 times [2024-11-23 22:35:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:08,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950966665] [2024-11-23 22:35:08,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:08,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 22:35:08,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:08,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950966665] [2024-11-23 22:35:08,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950966665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:08,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:08,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:08,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118275012] [2024-11-23 22:35:08,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:08,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:08,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:08,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:08,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:08,850 INFO L87 Difference]: Start difference. First operand 912 states and 1438 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, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:35:09,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:09,067 INFO L93 Difference]: Finished difference Result 1784 states and 2819 transitions. [2024-11-23 22:35:09,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:35:09,068 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, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 162 [2024-11-23 22:35:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:09,074 INFO L225 Difference]: With dead ends: 1784 [2024-11-23 22:35:09,074 INFO L226 Difference]: Without dead ends: 916 [2024-11-23 22:35:09,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:35:09,079 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 7 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4654 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 [2024-11-23 22:35:09,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4654 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-11-23 22:35:09,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 914. [2024-11-23 22:35:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 717 states have (on average 1.5843793584379358) internal successors, (1136), 726 states have internal predecessors, (1136), 143 states have call successors, (143), 52 states have call predecessors, (143), 53 states have return successors, (159), 138 states have call predecessors, (159), 142 states have call successors, (159) [2024-11-23 22:35:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1438 transitions. [2024-11-23 22:35:09,133 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1438 transitions. Word has length 162 [2024-11-23 22:35:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:09,133 INFO L471 AbstractCegarLoop]: Abstraction has 914 states and 1438 transitions. [2024-11-23 22:35:09,133 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, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:35:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1438 transitions. [2024-11-23 22:35:09,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 22:35:09,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:09,140 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:09,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:35:09,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:09,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:09,141 INFO L85 PathProgramCache]: Analyzing trace with hash 671049298, now seen corresponding path program 1 times [2024-11-23 22:35:09,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:09,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123396252] [2024-11-23 22:35:09,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:09,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 22:35:09,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:09,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123396252] [2024-11-23 22:35:09,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123396252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:09,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534762470] [2024-11-23 22:35:09,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:09,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:09,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:09,356 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:09,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:35:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:09,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:35:09,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-23 22:35:09,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:09,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534762470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:09,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:09,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 22:35:09,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931460476] [2024-11-23 22:35:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:09,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:09,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:09,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:09,883 INFO L87 Difference]: Start difference. First operand 914 states and 1438 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:10,007 INFO L93 Difference]: Finished difference Result 1556 states and 2423 transitions. [2024-11-23 22:35:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:10,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2024-11-23 22:35:10,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:10,016 INFO L225 Difference]: With dead ends: 1556 [2024-11-23 22:35:10,017 INFO L226 Difference]: Without dead ends: 920 [2024-11-23 22:35:10,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:10,021 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 1 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:10,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2694 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:10,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-23 22:35:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 916. [2024-11-23 22:35:10,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 718 states have (on average 1.583565459610028) internal successors, (1137), 728 states have internal predecessors, (1137), 143 states have call successors, (143), 52 states have call predecessors, (143), 54 states have return successors, (162), 138 states have call predecessors, (162), 142 states have call successors, (162) [2024-11-23 22:35:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1442 transitions. [2024-11-23 22:35:10,084 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1442 transitions. Word has length 164 [2024-11-23 22:35:10,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:10,086 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1442 transitions. [2024-11-23 22:35:10,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1442 transitions. [2024-11-23 22:35:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-23 22:35:10,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:10,092 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:10,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:10,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 22:35:10,293 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:10,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash -385561240, now seen corresponding path program 1 times [2024-11-23 22:35:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251724474] [2024-11-23 22:35:10,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:10,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 22:35:10,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251724474] [2024-11-23 22:35:10,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251724474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:10,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:10,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960226813] [2024-11-23 22:35:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:10,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:10,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:10,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:10,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:10,641 INFO L87 Difference]: Start difference. First operand 916 states and 1442 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-23 22:35:10,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:10,884 INFO L93 Difference]: Finished difference Result 1801 states and 2843 transitions. [2024-11-23 22:35:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:35:10,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 182 [2024-11-23 22:35:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:10,893 INFO L225 Difference]: With dead ends: 1801 [2024-11-23 22:35:10,893 INFO L226 Difference]: Without dead ends: 926 [2024-11-23 22:35:10,897 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 [2024-11-23 22:35:10,898 INFO L435 NwaCegarLoop]: 671 mSDtfsCounter, 5 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:10,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4668 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-23 22:35:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 924. [2024-11-23 22:35:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 724 states have (on average 1.578729281767956) internal successors, (1143), 735 states have internal predecessors, (1143), 143 states have call successors, (143), 53 states have call predecessors, (143), 56 states have return successors, (168), 138 states have call predecessors, (168), 142 states have call successors, (168) [2024-11-23 22:35:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1454 transitions. [2024-11-23 22:35:10,963 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1454 transitions. Word has length 182 [2024-11-23 22:35:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:10,964 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1454 transitions. [2024-11-23 22:35:10,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-23 22:35:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1454 transitions. [2024-11-23 22:35:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:35:10,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:10,971 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:10,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:35:10,971 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:10,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash -216240062, now seen corresponding path program 1 times [2024-11-23 22:35:10,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:10,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875546927] [2024-11-23 22:35:10,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-23 22:35:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:11,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875546927] [2024-11-23 22:35:11,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875546927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:11,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812708176] [2024-11-23 22:35:11,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:11,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:11,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:11,278 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:11,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 22:35:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:11,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:11,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:11,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:35:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:12,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812708176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:35:12,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:35:12,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-23 22:35:12,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123693014] [2024-11-23 22:35:12,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:35:12,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:35:12,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:12,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:35:12,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:35:12,008 INFO L87 Difference]: Start difference. First operand 924 states and 1454 transitions. Second operand has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-23 22:35:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:13,240 INFO L93 Difference]: Finished difference Result 2701 states and 4441 transitions. [2024-11-23 22:35:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:35:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 183 [2024-11-23 22:35:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:13,256 INFO L225 Difference]: With dead ends: 2701 [2024-11-23 22:35:13,256 INFO L226 Difference]: Without dead ends: 1830 [2024-11-23 22:35:13,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:35:13,262 INFO L435 NwaCegarLoop]: 679 mSDtfsCounter, 1503 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:13,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 4855 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:35:13,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-23 22:35:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1800. [2024-11-23 22:35:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1442 states have (on average 1.6262135922330097) internal successors, (2345), 1452 states have internal predecessors, (2345), 301 states have call successors, (301), 54 states have call predecessors, (301), 56 states have return successors, (351), 296 states have call predecessors, (351), 300 states have call successors, (351) [2024-11-23 22:35:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2997 transitions. [2024-11-23 22:35:13,397 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2997 transitions. Word has length 183 [2024-11-23 22:35:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:13,397 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2997 transitions. [2024-11-23 22:35:13,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-23 22:35:13,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2997 transitions. [2024-11-23 22:35:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-23 22:35:13,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:13,410 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:13,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:13,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 22:35:13,611 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:13,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash -821928631, now seen corresponding path program 1 times [2024-11-23 22:35:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16143011] [2024-11-23 22:35:13,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:13,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:13,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16143011] [2024-11-23 22:35:13,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16143011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:13,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:13,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798582181] [2024-11-23 22:35:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:13,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:13,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:13,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:13,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:13,721 INFO L87 Difference]: Start difference. First operand 1800 states and 2997 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:13,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:13,873 INFO L93 Difference]: Finished difference Result 4277 states and 7237 transitions. [2024-11-23 22:35:13,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:13,874 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 187 [2024-11-23 22:35:13,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:13,893 INFO L225 Difference]: With dead ends: 4277 [2024-11-23 22:35:13,893 INFO L226 Difference]: Without dead ends: 2626 [2024-11-23 22:35:13,899 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 [2024-11-23 22:35:13,899 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 139 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1376 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 [2024-11-23 22:35:13,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1376 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2024-11-23 22:35:14,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2616. [2024-11-23 22:35:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2616 states, 2100 states have (on average 1.6433333333333333) internal successors, (3451), 2110 states have internal predecessors, (3451), 459 states have call successors, (459), 54 states have call predecessors, (459), 56 states have return successors, (534), 454 states have call predecessors, (534), 458 states have call successors, (534) [2024-11-23 22:35:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 4444 transitions. [2024-11-23 22:35:14,086 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 4444 transitions. Word has length 187 [2024-11-23 22:35:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:14,087 INFO L471 AbstractCegarLoop]: Abstraction has 2616 states and 4444 transitions. [2024-11-23 22:35:14,087 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 4444 transitions. [2024-11-23 22:35:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-23 22:35:14,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:14,113 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:14,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:35:14,114 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:14,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:14,114 INFO L85 PathProgramCache]: Analyzing trace with hash 839533067, now seen corresponding path program 1 times [2024-11-23 22:35:14,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:14,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223149551] [2024-11-23 22:35:14,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:14,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-23 22:35:14,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:14,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223149551] [2024-11-23 22:35:14,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223149551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:14,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572496504] [2024-11-23 22:35:14,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:14,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:14,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:14,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 22:35:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:14,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:14,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:14,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572496504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:14,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:14,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:14,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956130179] [2024-11-23 22:35:14,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:14,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:14,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:14,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:14,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:14,880 INFO L87 Difference]: Start difference. First operand 2616 states and 4444 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:15,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:15,150 INFO L93 Difference]: Finished difference Result 6321 states and 10822 transitions. [2024-11-23 22:35:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:15,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 190 [2024-11-23 22:35:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:15,185 INFO L225 Difference]: With dead ends: 6321 [2024-11-23 22:35:15,185 INFO L226 Difference]: Without dead ends: 3956 [2024-11-23 22:35:15,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:15,199 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 137 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1360 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 [2024-11-23 22:35:15,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1360 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2024-11-23 22:35:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3946. [2024-11-23 22:35:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 3192 states have (on average 1.6513157894736843) internal successors, (5271), 3202 states have internal predecessors, (5271), 697 states have call successors, (697), 54 states have call predecessors, (697), 56 states have return successors, (788), 692 states have call predecessors, (788), 696 states have call successors, (788) [2024-11-23 22:35:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 6756 transitions. [2024-11-23 22:35:15,554 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 6756 transitions. Word has length 190 [2024-11-23 22:35:15,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:15,555 INFO L471 AbstractCegarLoop]: Abstraction has 3946 states and 6756 transitions. [2024-11-23 22:35:15,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 6756 transitions. [2024-11-23 22:35:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-23 22:35:15,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:15,585 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:15,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:15,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 22:35:15,786 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:15,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1493895333, now seen corresponding path program 1 times [2024-11-23 22:35:15,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:15,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381088511] [2024-11-23 22:35:15,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:15,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:15,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381088511] [2024-11-23 22:35:15,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381088511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:15,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74372425] [2024-11-23 22:35:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:15,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:15,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:15,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:15,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:15,899 INFO L87 Difference]: Start difference. First operand 3946 states and 6756 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:16,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:16,171 INFO L93 Difference]: Finished difference Result 9435 states and 16290 transitions. [2024-11-23 22:35:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:16,172 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 189 [2024-11-23 22:35:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:16,225 INFO L225 Difference]: With dead ends: 9435 [2024-11-23 22:35:16,225 INFO L226 Difference]: Without dead ends: 6002 [2024-11-23 22:35:16,245 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 [2024-11-23 22:35:16,246 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 135 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1357 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 [2024-11-23 22:35:16,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1357 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2024-11-23 22:35:16,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 5992. [2024-11-23 22:35:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5992 states, 4914 states have (on average 1.6579161579161579) internal successors, (8147), 4924 states have internal predecessors, (8147), 1021 states have call successors, (1021), 54 states have call predecessors, (1021), 56 states have return successors, (1162), 1016 states have call predecessors, (1162), 1020 states have call successors, (1162) [2024-11-23 22:35:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5992 states to 5992 states and 10330 transitions. [2024-11-23 22:35:16,732 INFO L78 Accepts]: Start accepts. Automaton has 5992 states and 10330 transitions. Word has length 189 [2024-11-23 22:35:16,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:16,733 INFO L471 AbstractCegarLoop]: Abstraction has 5992 states and 10330 transitions. [2024-11-23 22:35:16,733 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5992 states and 10330 transitions. [2024-11-23 22:35:16,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-23 22:35:16,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:16,774 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:16,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:35:16,775 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:16,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:16,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1536190095, now seen corresponding path program 1 times [2024-11-23 22:35:16,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:16,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803888618] [2024-11-23 22:35:16,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:16,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:16,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:16,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803888618] [2024-11-23 22:35:16,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803888618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:16,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:16,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:16,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005054218] [2024-11-23 22:35:16,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:16,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:16,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:16,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:16,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:16,880 INFO L87 Difference]: Start difference. First operand 5992 states and 10330 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:17,256 INFO L93 Difference]: Finished difference Result 14371 states and 24966 transitions. [2024-11-23 22:35:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:17,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 190 [2024-11-23 22:35:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:17,322 INFO L225 Difference]: With dead ends: 14371 [2024-11-23 22:35:17,323 INFO L226 Difference]: Without dead ends: 9316 [2024-11-23 22:35:17,344 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 [2024-11-23 22:35:17,344 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 133 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1357 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 [2024-11-23 22:35:17,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1357 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9316 states. [2024-11-23 22:35:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9316 to 9306. [2024-11-23 22:35:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9306 states, 7738 states have (on average 1.6625743086068752) internal successors, (12865), 7748 states have internal predecessors, (12865), 1511 states have call successors, (1511), 54 states have call predecessors, (1511), 56 states have return successors, (1735), 1506 states have call predecessors, (1735), 1510 states have call successors, (1735) [2024-11-23 22:35:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9306 states to 9306 states and 16111 transitions. [2024-11-23 22:35:18,142 INFO L78 Accepts]: Start accepts. Automaton has 9306 states and 16111 transitions. Word has length 190 [2024-11-23 22:35:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:18,143 INFO L471 AbstractCegarLoop]: Abstraction has 9306 states and 16111 transitions. [2024-11-23 22:35:18,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9306 states and 16111 transitions. [2024-11-23 22:35:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-23 22:35:18,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:18,223 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:18,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:35:18,223 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:18,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:18,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1674527097, now seen corresponding path program 1 times [2024-11-23 22:35:18,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:18,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723525708] [2024-11-23 22:35:18,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:18,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 22:35:18,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723525708] [2024-11-23 22:35:18,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723525708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006111281] [2024-11-23 22:35:18,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:18,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:18,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:18,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:18,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 22:35:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:18,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:18,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 22:35:18,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006111281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:18,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:18,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060399067] [2024-11-23 22:35:18,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:18,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:18,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:18,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:18,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:18,987 INFO L87 Difference]: Start difference. First operand 9306 states and 16111 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, (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) [2024-11-23 22:35:19,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:19,554 INFO L93 Difference]: Finished difference Result 22619 states and 39457 transitions. [2024-11-23 22:35:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:19,555 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, (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 174 [2024-11-23 22:35:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:19,666 INFO L225 Difference]: With dead ends: 22619 [2024-11-23 22:35:19,667 INFO L226 Difference]: Without dead ends: 14892 [2024-11-23 22:35:19,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:19,694 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 131 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1372 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 [2024-11-23 22:35:19,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1372 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14892 states. [2024-11-23 22:35:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14892 to 14882. [2024-11-23 22:35:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14882 states, 12328 states have (on average 1.660691109669046) internal successors, (20473), 12338 states have internal predecessors, (20473), 2497 states have call successors, (2497), 54 states have call predecessors, (2497), 56 states have return successors, (2865), 2492 states have call predecessors, (2865), 2496 states have call successors, (2865) [2024-11-23 22:35:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14882 states to 14882 states and 25835 transitions. [2024-11-23 22:35:20,565 INFO L78 Accepts]: Start accepts. Automaton has 14882 states and 25835 transitions. Word has length 174 [2024-11-23 22:35:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:20,566 INFO L471 AbstractCegarLoop]: Abstraction has 14882 states and 25835 transitions. [2024-11-23 22:35:20,566 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, (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) [2024-11-23 22:35:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 14882 states and 25835 transitions. [2024-11-23 22:35:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:35:20,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:20,634 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:20,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 22:35:20,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 22:35:20,839 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:20,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1109265843, now seen corresponding path program 1 times [2024-11-23 22:35:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8273031] [2024-11-23 22:35:20,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:20,939 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:20,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:20,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8273031] [2024-11-23 22:35:20,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8273031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:20,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:20,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316257524] [2024-11-23 22:35:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:20,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:20,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:20,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:20,942 INFO L87 Difference]: Start difference. First operand 14882 states and 25835 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:22,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:22,033 INFO L93 Difference]: Finished difference Result 37583 states and 65593 transitions. [2024-11-23 22:35:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2024-11-23 22:35:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:22,202 INFO L225 Difference]: With dead ends: 37583 [2024-11-23 22:35:22,203 INFO L226 Difference]: Without dead ends: 25052 [2024-11-23 22:35:22,255 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 [2024-11-23 22:35:22,255 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 129 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1360 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 [2024-11-23 22:35:22,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1360 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25052 states. [2024-11-23 22:35:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25052 to 25042. [2024-11-23 22:35:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25042 states, 20844 states have (on average 1.6604778353483016) internal successors, (34611), 20854 states have internal predecessors, (34611), 4141 states have call successors, (4141), 54 states have call predecessors, (4141), 56 states have return successors, (4698), 4136 states have call predecessors, (4698), 4140 states have call successors, (4698) [2024-11-23 22:35:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25042 states to 25042 states and 43450 transitions. [2024-11-23 22:35:23,757 INFO L78 Accepts]: Start accepts. Automaton has 25042 states and 43450 transitions. Word has length 192 [2024-11-23 22:35:23,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:23,757 INFO L471 AbstractCegarLoop]: Abstraction has 25042 states and 43450 transitions. [2024-11-23 22:35:23,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:23,758 INFO L276 IsEmpty]: Start isEmpty. Operand 25042 states and 43450 transitions. [2024-11-23 22:35:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-23 22:35:23,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:23,867 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:23,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:35:23,867 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:23,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:23,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1428695601, now seen corresponding path program 1 times [2024-11-23 22:35:23,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:23,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390501912] [2024-11-23 22:35:23,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:23,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-23 22:35:24,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390501912] [2024-11-23 22:35:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390501912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:24,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:24,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634333354] [2024-11-23 22:35:24,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:24,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:24,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:24,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:24,066 INFO L87 Difference]: Start difference. First operand 25042 states and 43450 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:25,277 INFO L93 Difference]: Finished difference Result 60073 states and 104131 transitions. [2024-11-23 22:35:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:25,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 193 [2024-11-23 22:35:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:25,458 INFO L225 Difference]: With dead ends: 60073 [2024-11-23 22:35:25,458 INFO L226 Difference]: Without dead ends: 39346 [2024-11-23 22:35:25,511 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 [2024-11-23 22:35:25,511 INFO L435 NwaCegarLoop]: 690 mSDtfsCounter, 127 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1340 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 [2024-11-23 22:35:25,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1340 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39346 states. [2024-11-23 22:35:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39346 to 39336. [2024-11-23 22:35:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39336 states, 32732 states have (on average 1.636655260906758) internal successors, (53571), 32742 states have internal predecessors, (53571), 6547 states have call successors, (6547), 54 states have call predecessors, (6547), 56 states have return successors, (7529), 6542 states have call predecessors, (7529), 6546 states have call successors, (7529) [2024-11-23 22:35:27,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39336 states to 39336 states and 67647 transitions. [2024-11-23 22:35:27,963 INFO L78 Accepts]: Start accepts. Automaton has 39336 states and 67647 transitions. Word has length 193 [2024-11-23 22:35:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:27,964 INFO L471 AbstractCegarLoop]: Abstraction has 39336 states and 67647 transitions. [2024-11-23 22:35:27,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 39336 states and 67647 transitions. [2024-11-23 22:35:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-23 22:35:28,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:28,165 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:28,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:35:28,165 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:28,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:28,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1203741178, now seen corresponding path program 1 times [2024-11-23 22:35:28,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:28,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818809367] [2024-11-23 22:35:28,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 22:35:28,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:28,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818809367] [2024-11-23 22:35:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818809367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468962090] [2024-11-23 22:35:28,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:28,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:28,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:28,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 22:35:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:28,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:28,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 22:35:28,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468962090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:28,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:28,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:28,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051212467] [2024-11-23 22:35:28,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:28,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:28,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:28,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:28,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:28,993 INFO L87 Difference]: Start difference. First operand 39336 states and 67647 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, (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) [2024-11-23 22:35:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:31,160 INFO L93 Difference]: Finished difference Result 104077 states and 179642 transitions. [2024-11-23 22:35:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:31,161 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, (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 177 [2024-11-23 22:35:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:31,544 INFO L225 Difference]: With dead ends: 104077 [2024-11-23 22:35:31,544 INFO L226 Difference]: Without dead ends: 70352 [2024-11-23 22:35:31,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:31,682 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 125 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1360 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 [2024-11-23 22:35:31,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1360 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70352 states. [2024-11-23 22:35:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70352 to 70342. [2024-11-23 22:35:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70342 states, 58838 states have (on average 1.6331112546313606) internal successors, (96089), 58848 states have internal predecessors, (96089), 11447 states have call successors, (11447), 54 states have call predecessors, (11447), 56 states have return successors, (13243), 11442 states have call predecessors, (13243), 11446 states have call successors, (13243) [2024-11-23 22:35:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70342 states to 70342 states and 120779 transitions. [2024-11-23 22:35:35,442 INFO L78 Accepts]: Start accepts. Automaton has 70342 states and 120779 transitions. Word has length 177 [2024-11-23 22:35:35,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:35,443 INFO L471 AbstractCegarLoop]: Abstraction has 70342 states and 120779 transitions. [2024-11-23 22:35:35,443 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, (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) [2024-11-23 22:35:35,443 INFO L276 IsEmpty]: Start isEmpty. Operand 70342 states and 120779 transitions. [2024-11-23 22:35:35,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-23 22:35:35,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:35,624 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:35,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:35,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:35,825 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:35,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:35,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2074664418, now seen corresponding path program 1 times [2024-11-23 22:35:35,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:35,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959423426] [2024-11-23 22:35:35,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:35,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-23 22:35:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959423426] [2024-11-23 22:35:35,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959423426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023453962] [2024-11-23 22:35:35,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:35,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:35,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:35,977 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:35,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 22:35:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:36,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:36,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:36,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:36,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023453962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:36,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:36,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:36,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109942249] [2024-11-23 22:35:36,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:36,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:36,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:36,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:36,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:36,814 INFO L87 Difference]: Start difference. First operand 70342 states and 120779 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:40,017 INFO L93 Difference]: Finished difference Result 192101 states and 330246 transitions. [2024-11-23 22:35:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 197 [2024-11-23 22:35:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:40,720 INFO L225 Difference]: With dead ends: 192101 [2024-11-23 22:35:40,720 INFO L226 Difference]: Without dead ends: 129208 [2024-11-23 22:35:40,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:40,960 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 123 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1360 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 [2024-11-23 22:35:40,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1360 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129208 states. [2024-11-23 22:35:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129208 to 129198. [2024-11-23 22:35:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129198 states, 108668 states have (on average 1.6286027165310855) internal successors, (176977), 108678 states have internal predecessors, (176977), 20473 states have call successors, (20473), 54 states have call predecessors, (20473), 56 states have return successors, (23333), 20468 states have call predecessors, (23333), 20472 states have call successors, (23333) [2024-11-23 22:35:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129198 states to 129198 states and 220783 transitions. [2024-11-23 22:35:46,728 INFO L78 Accepts]: Start accepts. Automaton has 129198 states and 220783 transitions. Word has length 197 [2024-11-23 22:35:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:46,728 INFO L471 AbstractCegarLoop]: Abstraction has 129198 states and 220783 transitions. [2024-11-23 22:35:46,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 22:35:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 129198 states and 220783 transitions. [2024-11-23 22:35:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-23 22:35:47,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:47,069 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:47,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:47,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:47,273 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:47,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:47,274 INFO L85 PathProgramCache]: Analyzing trace with hash 523495045, now seen corresponding path program 1 times [2024-11-23 22:35:47,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:47,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459049388] [2024-11-23 22:35:47,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:47,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-23 22:35:47,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:47,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459049388] [2024-11-23 22:35:47,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459049388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:47,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304197701] [2024-11-23 22:35:47,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:47,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:47,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:47,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:47,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801c289c-e823-43cd-9e0c-f42c6372178c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 22:35:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:47,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:47,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:48,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:48,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304197701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:48,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:48,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:35:48,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69315350] [2024-11-23 22:35:48,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:48,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:48,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:48,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:48,027 INFO L87 Difference]: Start difference. First operand 129198 states and 220783 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)