./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product25.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_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/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_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/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_521611de-2115-41a8-a25b-0a7a75f2a857/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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:28:19,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:28:19,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:28:19,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:28:19,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:28:19,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:28:19,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:28:19,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:28:19,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:28:19,559 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:28:19,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:28:19,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:28:19,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:28:19,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:28:19,561 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:28:19,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:28:19,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:28:19,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:28:19,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:19,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:28:19,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:19,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:19,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:19,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:19,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:28:19,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:28:19,566 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:28:19,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:28:19,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:28:19,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:28:19,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:28:19,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:28:19,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:28:19,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:28:19,567 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_521611de-2115-41a8-a25b-0a7a75f2a857/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 -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2024-11-23 23:28:19,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:28:20,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:28:20,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:28:20,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:28:20,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:28:20,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2024-11-23 23:28:23,722 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/data/6346c723c/1788d8cb0e074b5087d5f4df020f24f3/FLAG3daa079d2 [2024-11-23 23:28:24,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:28:24,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2024-11-23 23:28:24,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/data/6346c723c/1788d8cb0e074b5087d5f4df020f24f3/FLAG3daa079d2 [2024-11-23 23:28:24,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/data/6346c723c/1788d8cb0e074b5087d5f4df020f24f3 [2024-11-23 23:28:24,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:28:24,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:28:24,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:24,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:28:24,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:28:24,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:24" (1/1) ... [2024-11-23 23:28:24,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e39cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:24, skipping insertion in model container [2024-11-23 23:28:24,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:24" (1/1) ... [2024-11-23 23:28:24,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:28:25,088 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_521611de-2115-41a8-a25b-0a7a75f2a857/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2024-11-23 23:28:25,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:25,160 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:28:25,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [418] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1490] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1588] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1989] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2006] [2024-11-23 23:28:25,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2235] [2024-11-23 23:28:25,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2267] [2024-11-23 23:28:25,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2633] [2024-11-23 23:28:25,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2642] [2024-11-23 23:28:25,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2933] [2024-11-23 23:28:25,313 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_521611de-2115-41a8-a25b-0a7a75f2a857/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2024-11-23 23:28:25,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:25,357 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:28:25,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25 WrapperNode [2024-11-23 23:28:25,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:25,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:25,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:28:25,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:28:25,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,454 INFO L138 Inliner]: procedures = 130, calls = 201, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1032 [2024-11-23 23:28:25,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:25,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:28:25,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:28:25,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:28:25,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,516 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 23:28:25,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:28:25,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:28:25,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:28:25,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:28:25,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:25,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:25,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:28:25,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:28:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-23 23:28:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-23 23:28:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-23 23:28:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-23 23:28:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-23 23:28:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-23 23:28:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-23 23:28:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-23 23:28:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-23 23:28:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-23 23:28:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-23 23:28:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-23 23:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-23 23:28:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-23 23:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-23 23:28:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-23 23:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-23 23:28:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-23 23:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-23 23:28:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-23 23:28:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:28:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-23 23:28:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-23 23:28:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-23 23:28:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-23 23:28:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:28:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:28:26,007 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:28:26,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:28:27,454 INFO L? ?]: Removed 537 outVars from TransFormulas that were not future-live. [2024-11-23 23:28:27,454 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:28:27,478 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:28:27,478 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:28:27,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:27 BoogieIcfgContainer [2024-11-23 23:28:27,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:28:27,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:28:27,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:28:27,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:28:27,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:28:24" (1/3) ... [2024-11-23 23:28:27,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2ffba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:27, skipping insertion in model container [2024-11-23 23:28:27,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (2/3) ... [2024-11-23 23:28:27,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2ffba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:27, skipping insertion in model container [2024-11-23 23:28:27,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:27" (3/3) ... [2024-11-23 23:28:27,491 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2024-11-23 23:28:27,511 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:28:27,514 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product25.cil.c that has 24 procedures, 391 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:28:27,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:28:27,633 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;@6711cbd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:28:27,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:28:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 308 states have (on average 1.5616883116883118) internal successors, (481), 311 states have internal predecessors, (481), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 23:28:27,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 23:28:27,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:27,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:27,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:27,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:27,682 INFO L85 PathProgramCache]: Analyzing trace with hash 131661355, now seen corresponding path program 1 times [2024-11-23 23:28:27,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:27,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974573421] [2024-11-23 23:28:27,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:27,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:28,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:28,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974573421] [2024-11-23 23:28:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974573421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:28,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327003168] [2024-11-23 23:28:28,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:28,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:28,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:28,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:28,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:28:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:29,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:28:29,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 23:28:29,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:29,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327003168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:29,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:28:29,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:28:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44560937] [2024-11-23 23:28:29,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:29,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:29,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:29,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:29,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:28:29,879 INFO L87 Difference]: Start difference. First operand has 391 states, 308 states have (on average 1.5616883116883118) internal successors, (481), 311 states have internal predecessors, (481), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:28:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:30,028 INFO L93 Difference]: Finished difference Result 592 states and 890 transitions. [2024-11-23 23:28:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-11-23 23:28:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:30,051 INFO L225 Difference]: With dead ends: 592 [2024-11-23 23:28:30,052 INFO L226 Difference]: Without dead ends: 386 [2024-11-23 23:28:30,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:28:30,070 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 1 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:30,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:30,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-23 23:28:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2024-11-23 23:28:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.5544554455445545) internal successors, (471), 305 states have internal predecessors, (471), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-23 23:28:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 586 transitions. [2024-11-23 23:28:30,214 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 586 transitions. Word has length 136 [2024-11-23 23:28:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:30,216 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 586 transitions. [2024-11-23 23:28:30,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:28:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 586 transitions. [2024-11-23 23:28:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:28:30,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:30,233 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:30,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:28:30,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:28:30,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:30,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:30,440 INFO L85 PathProgramCache]: Analyzing trace with hash 164101727, now seen corresponding path program 1 times [2024-11-23 23:28:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:30,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608112568] [2024-11-23 23:28:30,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:30,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 23:28:31,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608112568] [2024-11-23 23:28:31,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608112568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901131948] [2024-11-23 23:28:31,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:31,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:31,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:31,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:31,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:28:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:31,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:28:31,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 23:28:31,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:31,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901131948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:31,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:28:31,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:28:31,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317128901] [2024-11-23 23:28:31,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:31,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:31,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:31,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:28:31,758 INFO L87 Difference]: Start difference. First operand 385 states and 586 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 23:28:31,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:31,870 INFO L93 Difference]: Finished difference Result 818 states and 1264 transitions. [2024-11-23 23:28:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:31,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2024-11-23 23:28:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:31,882 INFO L225 Difference]: With dead ends: 818 [2024-11-23 23:28:31,882 INFO L226 Difference]: Without dead ends: 459 [2024-11-23 23:28:31,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 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 23:28:31,890 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 134 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1128 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 23:28:31,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1128 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:31,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-23 23:28:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 451. [2024-11-23 23:28:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 355 states have (on average 1.5746478873239436) internal successors, (559), 357 states have internal predecessors, (559), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-23 23:28:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 702 transitions. [2024-11-23 23:28:31,973 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 702 transitions. Word has length 141 [2024-11-23 23:28:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:31,975 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 702 transitions. [2024-11-23 23:28:31,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 23:28:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 702 transitions. [2024-11-23 23:28:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:28:31,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:31,983 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:28:31,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:28:32,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-23 23:28:32,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:32,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:32,187 INFO L85 PathProgramCache]: Analyzing trace with hash 972506648, now seen corresponding path program 1 times [2024-11-23 23:28:32,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:32,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444033924] [2024-11-23 23:28:32,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:32,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:28:32,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:32,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444033924] [2024-11-23 23:28:32,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444033924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:32,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212484489] [2024-11-23 23:28:32,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:32,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:32,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:32,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:32,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:28:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:33,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:28:33,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:28:33,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:33,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212484489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:33,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:28:33,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 23:28:33,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535088534] [2024-11-23 23:28:33,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:33,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:33,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:33,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:33,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:28:33,286 INFO L87 Difference]: Start difference. First operand 451 states and 702 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:28:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:33,382 INFO L93 Difference]: Finished difference Result 893 states and 1394 transitions. [2024-11-23 23:28:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:33,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2024-11-23 23:28:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:33,387 INFO L225 Difference]: With dead ends: 893 [2024-11-23 23:28:33,387 INFO L226 Difference]: Without dead ends: 453 [2024-11-23 23:28:33,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 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 23:28:33,390 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 2 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2297 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 23:28:33,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2297 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-23 23:28:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-23 23:28:33,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 356 states have (on average 1.5730337078651686) internal successors, (560), 359 states have internal predecessors, (560), 72 states have call successors, (72), 23 states have call predecessors, (72), 24 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2024-11-23 23:28:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 705 transitions. [2024-11-23 23:28:33,437 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 705 transitions. Word has length 123 [2024-11-23 23:28:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:33,437 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 705 transitions. [2024-11-23 23:28:33,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:28:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 705 transitions. [2024-11-23 23:28:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:28:33,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:33,446 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:33,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:28:33,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-23 23:28:33,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:33,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:33,651 INFO L85 PathProgramCache]: Analyzing trace with hash -445033257, now seen corresponding path program 1 times [2024-11-23 23:28:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:33,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175128192] [2024-11-23 23:28:33,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:28:33,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175128192] [2024-11-23 23:28:33,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175128192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:33,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595017201] [2024-11-23 23:28:33,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:33,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:33,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:34,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:28:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:34,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:28:34,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:28:34,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595017201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:34,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:28:34,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-23 23:28:34,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140112371] [2024-11-23 23:28:34,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:34,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:34,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:34,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:28:34,623 INFO L87 Difference]: Start difference. First operand 453 states and 705 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 23:28:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:34,751 INFO L93 Difference]: Finished difference Result 895 states and 1399 transitions. [2024-11-23 23:28:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:34,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 143 [2024-11-23 23:28:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:34,756 INFO L225 Difference]: With dead ends: 895 [2024-11-23 23:28:34,756 INFO L226 Difference]: Without dead ends: 455 [2024-11-23 23:28:34,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 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 23:28:34,760 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 2 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:34,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2283 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:28:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-23 23:28:34,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-23 23:28:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2024-11-23 23:28:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 711 transitions. [2024-11-23 23:28:34,789 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 711 transitions. Word has length 143 [2024-11-23 23:28:34,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:34,789 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 711 transitions. [2024-11-23 23:28:34,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 23:28:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 711 transitions. [2024-11-23 23:28:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:28:34,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:34,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:34,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:28:34,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:34,998 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:34,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1065343939, now seen corresponding path program 1 times [2024-11-23 23:28:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:34,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222921339] [2024-11-23 23:28:34,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:35,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:28:35,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222921339] [2024-11-23 23:28:35,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222921339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:35,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:35,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:28:35,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178920151] [2024-11-23 23:28:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:35,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:35,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:35,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:28:35,300 INFO L87 Difference]: Start difference. First operand 455 states and 711 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:28:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:35,378 INFO L93 Difference]: Finished difference Result 887 states and 1390 transitions. [2024-11-23 23:28:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-23 23:28:35,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:35,382 INFO L225 Difference]: With dead ends: 887 [2024-11-23 23:28:35,383 INFO L226 Difference]: Without dead ends: 455 [2024-11-23 23:28:35,385 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 23:28:35,386 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 2 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2301 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 23:28:35,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2301 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-23 23:28:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-23 23:28:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2024-11-23 23:28:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 710 transitions. [2024-11-23 23:28:35,420 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 710 transitions. Word has length 125 [2024-11-23 23:28:35,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:35,420 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 710 transitions. [2024-11-23 23:28:35,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:28:35,421 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 710 transitions. [2024-11-23 23:28:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:28:35,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:35,429 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:35,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:28:35,429 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:35,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1891310460, now seen corresponding path program 2 times [2024-11-23 23:28:35,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:35,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750352309] [2024-11-23 23:28:35,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:28:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:35,474 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:28:35,474 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:28:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:35,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:35,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750352309] [2024-11-23 23:28:35,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750352309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:35,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:35,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:28:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062409959] [2024-11-23 23:28:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:35,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:28:35,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:35,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:28:35,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:35,638 INFO L87 Difference]: Start difference. First operand 455 states and 710 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:28:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:35,711 INFO L93 Difference]: Finished difference Result 640 states and 977 transitions. [2024-11-23 23:28:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:28:35,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2024-11-23 23:28:35,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:35,716 INFO L225 Difference]: With dead ends: 640 [2024-11-23 23:28:35,716 INFO L226 Difference]: Without dead ends: 455 [2024-11-23 23:28:35,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:35,718 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 0 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:35,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3471 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-23 23:28:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-23 23:28:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 357 states have (on average 1.5686274509803921) internal successors, (560), 361 states have internal predecessors, (560), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2024-11-23 23:28:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 709 transitions. [2024-11-23 23:28:35,763 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 709 transitions. Word has length 126 [2024-11-23 23:28:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:35,765 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 709 transitions. [2024-11-23 23:28:35,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:28:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 709 transitions. [2024-11-23 23:28:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 23:28:35,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:35,769 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:35,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:28:35,772 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:35,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1686148701, now seen corresponding path program 1 times [2024-11-23 23:28:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:35,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13120907] [2024-11-23 23:28:35,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:35,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:28:36,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:36,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13120907] [2024-11-23 23:28:36,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13120907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:36,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:36,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:28:36,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996835515] [2024-11-23 23:28:36,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:36,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:36,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:36,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:36,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:28:36,026 INFO L87 Difference]: Start difference. First operand 455 states and 709 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-23 23:28:36,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:36,116 INFO L93 Difference]: Finished difference Result 889 states and 1391 transitions. [2024-11-23 23:28:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:36,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2024-11-23 23:28:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:36,121 INFO L225 Difference]: With dead ends: 889 [2024-11-23 23:28:36,124 INFO L226 Difference]: Without dead ends: 457 [2024-11-23 23:28:36,127 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 23:28:36,128 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 1 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2300 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 23:28:36,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2300 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-23 23:28:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2024-11-23 23:28:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 358 states have (on average 1.5670391061452513) internal successors, (561), 363 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2024-11-23 23:28:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2024-11-23 23:28:36,169 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 133 [2024-11-23 23:28:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:36,170 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2024-11-23 23:28:36,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-23 23:28:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2024-11-23 23:28:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:28:36,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:36,174 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:28:36,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:36,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1534659559, now seen corresponding path program 1 times [2024-11-23 23:28:36,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:36,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537313567] [2024-11-23 23:28:36,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 23:28:36,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:36,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537313567] [2024-11-23 23:28:36,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537313567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:36,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:36,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:28:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422872535] [2024-11-23 23:28:36,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:36,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:36,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:36,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:36,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:28:36,477 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 23:28:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:36,545 INFO L93 Difference]: Finished difference Result 891 states and 1394 transitions. [2024-11-23 23:28:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:36,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-23 23:28:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:36,551 INFO L225 Difference]: With dead ends: 891 [2024-11-23 23:28:36,551 INFO L226 Difference]: Without dead ends: 459 [2024-11-23 23:28:36,553 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 23:28:36,554 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 0 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:36,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2293 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-23 23:28:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 457. [2024-11-23 23:28:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 358 states have (on average 1.5670391061452513) internal successors, (561), 363 states have internal predecessors, (561), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2024-11-23 23:28:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2024-11-23 23:28:36,590 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 153 [2024-11-23 23:28:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:36,591 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2024-11-23 23:28:36,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 23:28:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2024-11-23 23:28:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:28:36,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:36,596 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:36,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:28:36,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:36,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 187343127, now seen corresponding path program 1 times [2024-11-23 23:28:36,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837351605] [2024-11-23 23:28:36,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:28:36,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:36,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837351605] [2024-11-23 23:28:36,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837351605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:36,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:36,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:28:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329685851] [2024-11-23 23:28:36,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:36,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:28:36,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:36,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:28:36,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:28:36,898 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 23:28:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:37,152 INFO L93 Difference]: Finished difference Result 891 states and 1390 transitions. [2024-11-23 23:28:37,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:28:37,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-23 23:28:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:37,159 INFO L225 Difference]: With dead ends: 891 [2024-11-23 23:28:37,159 INFO L226 Difference]: Without dead ends: 459 [2024-11-23 23:28:37,161 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 23:28:37,163 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 7 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:37,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3947 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:28:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-23 23:28:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-11-23 23:28:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 360 states have (on average 1.5638888888888889) internal successors, (563), 364 states have internal predecessors, (563), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2024-11-23 23:28:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 713 transitions. [2024-11-23 23:28:37,199 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 713 transitions. Word has length 153 [2024-11-23 23:28:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:37,200 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 713 transitions. [2024-11-23 23:28:37,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 23:28:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 713 transitions. [2024-11-23 23:28:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 23:28:37,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:37,205 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:37,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:28:37,205 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:37,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash -385373515, now seen corresponding path program 2 times [2024-11-23 23:28:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:37,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958319409] [2024-11-23 23:28:37,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:28:37,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:37,269 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:28:37,269 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:28:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:28:37,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958319409] [2024-11-23 23:28:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958319409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:37,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:28:37,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292740639] [2024-11-23 23:28:37,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:37,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:28:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:37,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:28:37,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:37,520 INFO L87 Difference]: Start difference. First operand 459 states and 713 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 23:28:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:37,669 INFO L93 Difference]: Finished difference Result 891 states and 1394 transitions. [2024-11-23 23:28:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:28:37,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 154 [2024-11-23 23:28:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:37,675 INFO L225 Difference]: With dead ends: 891 [2024-11-23 23:28:37,675 INFO L226 Difference]: Without dead ends: 461 [2024-11-23 23:28:37,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:37,678 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 2 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:37,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3428 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:28:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-23 23:28:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-11-23 23:28:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2024-11-23 23:28:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 719 transitions. [2024-11-23 23:28:37,744 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 719 transitions. Word has length 154 [2024-11-23 23:28:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:37,745 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 719 transitions. [2024-11-23 23:28:37,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 23:28:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 719 transitions. [2024-11-23 23:28:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 23:28:37,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:37,750 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:37,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:28:37,750 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:37,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1864444062, now seen corresponding path program 1 times [2024-11-23 23:28:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:37,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809004151] [2024-11-23 23:28:37,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:37,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:28:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:38,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809004151] [2024-11-23 23:28:38,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809004151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:38,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:38,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:28:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139154945] [2024-11-23 23:28:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:38,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:28:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:38,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:28:38,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:28:38,055 INFO L87 Difference]: Start difference. First operand 461 states and 719 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 23:28:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:38,180 INFO L93 Difference]: Finished difference Result 895 states and 1404 transitions. [2024-11-23 23:28:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:28:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-23 23:28:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:38,187 INFO L225 Difference]: With dead ends: 895 [2024-11-23 23:28:38,190 INFO L226 Difference]: Without dead ends: 463 [2024-11-23 23:28:38,193 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 23:28:38,194 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:38,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2279 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:28:38,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-23 23:28:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2024-11-23 23:28:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2024-11-23 23:28:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 719 transitions. [2024-11-23 23:28:38,240 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 719 transitions. Word has length 155 [2024-11-23 23:28:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:38,240 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 719 transitions. [2024-11-23 23:28:38,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 23:28:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 719 transitions. [2024-11-23 23:28:38,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 23:28:38,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:38,246 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:38,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:28:38,246 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:38,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1675330604, now seen corresponding path program 1 times [2024-11-23 23:28:38,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:38,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922441972] [2024-11-23 23:28:38,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:38,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:38,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922441972] [2024-11-23 23:28:38,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922441972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114955910] [2024-11-23 23:28:38,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:38,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:38,555 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:38,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:28:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:39,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:28:39,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:39,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:28:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:39,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114955910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:28:39,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:28:39,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 23:28:39,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490743580] [2024-11-23 23:28:39,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:28:39,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:28:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:39,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:28:39,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:39,315 INFO L87 Difference]: Start difference. First operand 461 states and 719 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 23:28:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:39,623 INFO L93 Difference]: Finished difference Result 1090 states and 1760 transitions. [2024-11-23 23:28:39,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:28:39,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2024-11-23 23:28:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:39,633 INFO L225 Difference]: With dead ends: 1090 [2024-11-23 23:28:39,633 INFO L226 Difference]: Without dead ends: 897 [2024-11-23 23:28:39,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:28:39,636 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 614 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:39,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1649 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:28:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-23 23:28:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 873. [2024-11-23 23:28:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 694 states have (on average 1.6296829971181557) internal successors, (1131), 699 states have internal predecessors, (1131), 151 states have call successors, (151), 24 states have call predecessors, (151), 27 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2024-11-23 23:28:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1454 transitions. [2024-11-23 23:28:39,702 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1454 transitions. Word has length 136 [2024-11-23 23:28:39,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:39,703 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1454 transitions. [2024-11-23 23:28:39,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-23 23:28:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1454 transitions. [2024-11-23 23:28:39,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 23:28:39,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:39,712 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:39,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:28:39,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521611de-2115-41a8-a25b-0a7a75f2a857/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 23:28:39,912 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:39,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2100369602, now seen corresponding path program 1 times [2024-11-23 23:28:39,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:39,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106936981] [2024-11-23 23:28:39,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:28:40,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:40,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106936981] [2024-11-23 23:28:40,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106936981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:40,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:40,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240609812] [2024-11-23 23:28:40,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:40,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:40,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:40,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:40,049 INFO L87 Difference]: Start difference. First operand 873 states and 1454 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:40,137 INFO L93 Difference]: Finished difference Result 2094 states and 3538 transitions. [2024-11-23 23:28:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:40,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2024-11-23 23:28:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:40,150 INFO L225 Difference]: With dead ends: 2094 [2024-11-23 23:28:40,151 INFO L226 Difference]: Without dead ends: 1289 [2024-11-23 23:28:40,155 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 23:28:40,156 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 132 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1179 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 23:28:40,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-23 23:28:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1281. [2024-11-23 23:28:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1023 states have (on average 1.64613880742913) internal successors, (1684), 1028 states have internal predecessors, (1684), 230 states have call successors, (230), 24 states have call predecessors, (230), 27 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2024-11-23 23:28:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2175 transitions. [2024-11-23 23:28:40,258 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2175 transitions. Word has length 162 [2024-11-23 23:28:40,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:40,259 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 2175 transitions. [2024-11-23 23:28:40,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2175 transitions. [2024-11-23 23:28:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 23:28:40,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:40,272 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:40,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:28:40,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:40,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1471082620, now seen corresponding path program 1 times [2024-11-23 23:28:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419109037] [2024-11-23 23:28:40,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:40,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:40,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419109037] [2024-11-23 23:28:40,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419109037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:40,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:40,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562821708] [2024-11-23 23:28:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:40,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:40,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:40,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:40,437 INFO L87 Difference]: Start difference. First operand 1281 states and 2175 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:40,561 INFO L93 Difference]: Finished difference Result 3091 states and 5283 transitions. [2024-11-23 23:28:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-11-23 23:28:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:40,582 INFO L225 Difference]: With dead ends: 3091 [2024-11-23 23:28:40,582 INFO L226 Difference]: Without dead ends: 1929 [2024-11-23 23:28:40,589 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 23:28:40,591 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 130 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1160 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 23:28:40,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-23 23:28:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1921. [2024-11-23 23:28:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1544 states have (on average 1.657383419689119) internal successors, (2559), 1549 states have internal predecessors, (2559), 349 states have call successors, (349), 24 states have call predecessors, (349), 27 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2024-11-23 23:28:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 3288 transitions. [2024-11-23 23:28:40,769 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 3288 transitions. Word has length 144 [2024-11-23 23:28:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:40,770 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 3288 transitions. [2024-11-23 23:28:40,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 3288 transitions. [2024-11-23 23:28:40,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:28:40,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:40,791 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:40,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:28:40,792 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:40,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1318797668, now seen corresponding path program 1 times [2024-11-23 23:28:40,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:40,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649500487] [2024-11-23 23:28:40,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:40,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:28:40,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:40,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649500487] [2024-11-23 23:28:40,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649500487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:40,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:40,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:40,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190828734] [2024-11-23 23:28:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:40,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:40,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:40,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:40,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:40,952 INFO L87 Difference]: Start difference. First operand 1921 states and 3288 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:41,130 INFO L93 Difference]: Finished difference Result 4593 states and 7923 transitions. [2024-11-23 23:28:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:41,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2024-11-23 23:28:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:41,153 INFO L225 Difference]: With dead ends: 4593 [2024-11-23 23:28:41,154 INFO L226 Difference]: Without dead ends: 2912 [2024-11-23 23:28:41,163 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 23:28:41,164 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 128 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1157 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 23:28:41,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2024-11-23 23:28:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2904. [2024-11-23 23:28:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2365 states have (on average 1.666384778012685) internal successors, (3941), 2370 states have internal predecessors, (3941), 511 states have call successors, (511), 24 states have call predecessors, (511), 27 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2024-11-23 23:28:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 5010 transitions. [2024-11-23 23:28:41,379 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 5010 transitions. Word has length 164 [2024-11-23 23:28:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:41,380 INFO L471 AbstractCegarLoop]: Abstraction has 2904 states and 5010 transitions. [2024-11-23 23:28:41,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 5010 transitions. [2024-11-23 23:28:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 23:28:41,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:41,406 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:41,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:28:41,406 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:41,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1062544581, now seen corresponding path program 1 times [2024-11-23 23:28:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627877758] [2024-11-23 23:28:41,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:41,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:41,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627877758] [2024-11-23 23:28:41,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627877758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:41,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:41,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235163072] [2024-11-23 23:28:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:41,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:41,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:41,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:41,519 INFO L87 Difference]: Start difference. First operand 2904 states and 5010 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:41,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:41,818 INFO L93 Difference]: Finished difference Result 6971 states and 12109 transitions. [2024-11-23 23:28:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:41,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2024-11-23 23:28:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:41,859 INFO L225 Difference]: With dead ends: 6971 [2024-11-23 23:28:41,859 INFO L226 Difference]: Without dead ends: 4504 [2024-11-23 23:28:41,870 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 23:28:41,872 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 126 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1157 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 23:28:41,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1157 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:41,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2024-11-23 23:28:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 4496. [2024-11-23 23:28:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 3712 states have (on average 1.6726831896551724) internal successors, (6209), 3717 states have internal predecessors, (6209), 756 states have call successors, (756), 24 states have call predecessors, (756), 27 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2024-11-23 23:28:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 7794 transitions. [2024-11-23 23:28:42,239 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 7794 transitions. Word has length 146 [2024-11-23 23:28:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:42,239 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 7794 transitions. [2024-11-23 23:28:42,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 7794 transitions. [2024-11-23 23:28:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-23 23:28:42,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:42,272 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:42,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:28:42,272 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:42,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 866257568, now seen corresponding path program 1 times [2024-11-23 23:28:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:42,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357742891] [2024-11-23 23:28:42,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:28:42,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:42,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357742891] [2024-11-23 23:28:42,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357742891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:42,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:42,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:42,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24807329] [2024-11-23 23:28:42,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:42,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:42,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:42,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:42,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:42,381 INFO L87 Difference]: Start difference. First operand 4496 states and 7794 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:42,731 INFO L93 Difference]: Finished difference Result 10940 states and 19092 transitions. [2024-11-23 23:28:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:42,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2024-11-23 23:28:42,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:42,793 INFO L225 Difference]: With dead ends: 10940 [2024-11-23 23:28:42,793 INFO L226 Difference]: Without dead ends: 7182 [2024-11-23 23:28:42,813 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 23:28:42,813 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 124 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1179 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 23:28:42,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2024-11-23 23:28:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 7174. [2024-11-23 23:28:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 5897 states have (on average 1.6718670510429032) internal successors, (9859), 5902 states have internal predecessors, (9859), 1249 states have call successors, (1249), 24 states have call predecessors, (1249), 27 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2024-11-23 23:28:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 12474 transitions. [2024-11-23 23:28:43,469 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 12474 transitions. Word has length 166 [2024-11-23 23:28:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:43,469 INFO L471 AbstractCegarLoop]: Abstraction has 7174 states and 12474 transitions. [2024-11-23 23:28:43,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 12474 transitions. [2024-11-23 23:28:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 23:28:43,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:43,507 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:43,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:28:43,507 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:43,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:43,509 INFO L85 PathProgramCache]: Analyzing trace with hash 723050231, now seen corresponding path program 1 times [2024-11-23 23:28:43,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:43,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602427905] [2024-11-23 23:28:43,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:43,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:43,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:43,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602427905] [2024-11-23 23:28:43,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602427905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:43,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:43,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:43,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826750686] [2024-11-23 23:28:43,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:43,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:43,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:43,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:43,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:43,593 INFO L87 Difference]: Start difference. First operand 7174 states and 12474 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:44,304 INFO L93 Difference]: Finished difference Result 18142 states and 31732 transitions. [2024-11-23 23:28:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:44,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2024-11-23 23:28:44,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:44,421 INFO L225 Difference]: With dead ends: 18142 [2024-11-23 23:28:44,421 INFO L226 Difference]: Without dead ends: 12067 [2024-11-23 23:28:44,453 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 23:28:44,453 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 122 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1160 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 23:28:44,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2024-11-23 23:28:45,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 12059. [2024-11-23 23:28:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12059 states, 9960 states have (on average 1.6721887550200802) internal successors, (16655), 9965 states have internal predecessors, (16655), 2071 states have call successors, (2071), 24 states have call predecessors, (2071), 27 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2024-11-23 23:28:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12059 states to 12059 states and 20992 transitions. [2024-11-23 23:28:45,272 INFO L78 Accepts]: Start accepts. Automaton has 12059 states and 20992 transitions. Word has length 148 [2024-11-23 23:28:45,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:45,273 INFO L471 AbstractCegarLoop]: Abstraction has 12059 states and 20992 transitions. [2024-11-23 23:28:45,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 12059 states and 20992 transitions. [2024-11-23 23:28:45,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-23 23:28:45,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:45,346 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:45,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:28:45,347 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:45,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:45,347 INFO L85 PathProgramCache]: Analyzing trace with hash 811824014, now seen corresponding path program 1 times [2024-11-23 23:28:45,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:45,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129758285] [2024-11-23 23:28:45,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:45,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:28:45,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129758285] [2024-11-23 23:28:45,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129758285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:45,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:45,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:45,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782318631] [2024-11-23 23:28:45,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:45,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:45,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:45,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:45,469 INFO L87 Difference]: Start difference. First operand 12059 states and 20992 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:46,412 INFO L93 Difference]: Finished difference Result 28862 states and 50178 transitions. [2024-11-23 23:28:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:46,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2024-11-23 23:28:46,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:46,521 INFO L225 Difference]: With dead ends: 28862 [2024-11-23 23:28:46,521 INFO L226 Difference]: Without dead ends: 18854 [2024-11-23 23:28:46,562 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 23:28:46,563 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 120 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1134 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 23:28:46,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1134 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18854 states. [2024-11-23 23:28:47,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18854 to 18846. [2024-11-23 23:28:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 15544 states have (on average 1.648932063818837) internal successors, (25631), 15549 states have internal predecessors, (25631), 3274 states have call successors, (3274), 24 states have call predecessors, (3274), 27 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2024-11-23 23:28:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 32518 transitions. [2024-11-23 23:28:47,897 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 32518 transitions. Word has length 168 [2024-11-23 23:28:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:47,898 INFO L471 AbstractCegarLoop]: Abstraction has 18846 states and 32518 transitions. [2024-11-23 23:28:47,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 23:28:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 32518 transitions. [2024-11-23 23:28:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-23 23:28:47,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:47,977 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:47,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:28:47,978 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:47,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:47,978 INFO L85 PathProgramCache]: Analyzing trace with hash -805407594, now seen corresponding path program 1 times [2024-11-23 23:28:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:47,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207898852] [2024-11-23 23:28:47,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:48,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:48,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207898852] [2024-11-23 23:28:48,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207898852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:48,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:48,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:48,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498202826] [2024-11-23 23:28:48,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:48,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:48,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:48,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:48,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:48,097 INFO L87 Difference]: Start difference. First operand 18846 states and 32518 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:50,037 INFO L93 Difference]: Finished difference Result 49854 states and 86318 transitions. [2024-11-23 23:28:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:50,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2024-11-23 23:28:50,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:50,287 INFO L225 Difference]: With dead ends: 49854 [2024-11-23 23:28:50,287 INFO L226 Difference]: Without dead ends: 33672 [2024-11-23 23:28:50,378 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 23:28:50,382 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 118 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:50,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:28:50,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2024-11-23 23:28:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 33664. [2024-11-23 23:28:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33664 states, 27912 states have (on average 1.6455646316996273) internal successors, (45931), 27917 states have internal predecessors, (45931), 5724 states have call successors, (5724), 24 states have call predecessors, (5724), 27 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2024-11-23 23:28:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33664 states to 33664 states and 57992 transitions. [2024-11-23 23:28:52,389 INFO L78 Accepts]: Start accepts. Automaton has 33664 states and 57992 transitions. Word has length 150 [2024-11-23 23:28:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:52,390 INFO L471 AbstractCegarLoop]: Abstraction has 33664 states and 57992 transitions. [2024-11-23 23:28:52,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 33664 states and 57992 transitions. [2024-11-23 23:28:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:28:52,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:52,483 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:52,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:28:52,483 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:52,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1485638712, now seen corresponding path program 1 times [2024-11-23 23:28:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:52,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294426209] [2024-11-23 23:28:52,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:52,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:52,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294426209] [2024-11-23 23:28:52,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294426209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:52,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:52,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:52,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992170479] [2024-11-23 23:28:52,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:52,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:52,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:52,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:52,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:52,594 INFO L87 Difference]: Start difference. First operand 33664 states and 57992 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:54,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:54,867 INFO L93 Difference]: Finished difference Result 91891 states and 158745 transitions. [2024-11-23 23:28:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:28:54,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2024-11-23 23:28:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:55,275 INFO L225 Difference]: With dead ends: 91891 [2024-11-23 23:28:55,275 INFO L226 Difference]: Without dead ends: 61770 [2024-11-23 23:28:55,412 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 23:28:55,414 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 116 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1165 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 23:28:55,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1165 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61770 states. [2024-11-23 23:28:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61770 to 61762. [2024-11-23 23:28:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61762 states, 51497 states have (on average 1.6411247257121775) internal successors, (84513), 51502 states have internal predecessors, (84513), 10237 states have call successors, (10237), 24 states have call predecessors, (10237), 27 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2024-11-23 23:28:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61762 states to 61762 states and 106132 transitions. [2024-11-23 23:28:59,516 INFO L78 Accepts]: Start accepts. Automaton has 61762 states and 106132 transitions. Word has length 151 [2024-11-23 23:28:59,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:59,517 INFO L471 AbstractCegarLoop]: Abstraction has 61762 states and 106132 transitions. [2024-11-23 23:28:59,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 61762 states and 106132 transitions. [2024-11-23 23:28:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 23:28:59,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:59,660 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:59,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:28:59,661 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:59,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1764310922, now seen corresponding path program 1 times [2024-11-23 23:28:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:59,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098956959] [2024-11-23 23:28:59,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:28:59,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:59,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098956959] [2024-11-23 23:28:59,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098956959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:59,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:59,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:28:59,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187658894] [2024-11-23 23:28:59,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:59,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:28:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:59,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:28:59,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:28:59,801 INFO L87 Difference]: Start difference. First operand 61762 states and 106132 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:29:03,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:29:03,195 INFO L93 Difference]: Finished difference Result 115748 states and 199291 transitions. [2024-11-23 23:29:03,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:29:03,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2024-11-23 23:29:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:29:03,782 INFO L225 Difference]: With dead ends: 115748 [2024-11-23 23:29:03,782 INFO L226 Difference]: Without dead ends: 115555 [2024-11-23 23:29:03,832 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 23:29:03,836 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 111 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:29:03,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1174 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:29:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115555 states. [2024-11-23 23:29:07,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115555 to 115547. [2024-11-23 23:29:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115547 states, 96914 states have (on average 1.6356357182656789) internal successors, (158516), 96919 states have internal predecessors, (158516), 18605 states have call successors, (18605), 24 states have call predecessors, (18605), 27 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2024-11-23 23:29:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115547 states to 115547 states and 197917 transitions. [2024-11-23 23:29:08,264 INFO L78 Accepts]: Start accepts. Automaton has 115547 states and 197917 transitions. Word has length 152 [2024-11-23 23:29:08,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:29:08,265 INFO L471 AbstractCegarLoop]: Abstraction has 115547 states and 197917 transitions. [2024-11-23 23:29:08,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:29:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 115547 states and 197917 transitions. [2024-11-23 23:29:08,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:29:08,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:29:08,391 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:29:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:29:08,391 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:29:08,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:29:08,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1806485929, now seen corresponding path program 1 times [2024-11-23 23:29:08,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:29:08,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311565238] [2024-11-23 23:29:08,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:29:08,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:29:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:29:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:29:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:29:08,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311565238] [2024-11-23 23:29:08,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311565238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:29:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:29:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:29:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330303734] [2024-11-23 23:29:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:29:08,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:29:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:29:08,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:29:08,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:29:08,731 INFO L87 Difference]: Start difference. First operand 115547 states and 197917 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:29:13,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:29:13,992 INFO L93 Difference]: Finished difference Result 115923 states and 198458 transitions. [2024-11-23 23:29:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:29:13,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2024-11-23 23:29:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:29:14,878 INFO L225 Difference]: With dead ends: 115923 [2024-11-23 23:29:14,878 INFO L226 Difference]: Without dead ends: 115738 [2024-11-23 23:29:14,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:29:14,928 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 512 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:29:14,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 2616 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:29:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115738 states. [2024-11-23 23:29:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115738 to 115734.