./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/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_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/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_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/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 b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:54:36,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:54:36,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:54:36,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:54:36,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:54:36,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:54:36,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:54:36,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:54:36,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:54:36,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:54:36,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:54:36,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:54:36,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:54:36,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:54:36,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:54:36,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:54:36,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:54:36,590 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:54:36,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:54:36,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:54:36,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:54:36,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:54:36,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:54:36,595 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:36,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:36,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:36,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:54:36,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:54:36,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:54:36,598 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_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/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 -> b26e97b5c42973451de5f20f984873ade34b15aaa31cbbdc58b330ea8f51f185 [2024-11-23 22:54:36,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:54:36,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:54:36,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:54:36,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:54:36,951 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:54:36,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2024-11-23 22:54:40,053 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/data/f7e30fc10/d0a3f08dc74c4e1d81ca5ab67e8b8bbd/FLAGcfd7839cf [2024-11-23 22:54:40,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:54:40,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c [2024-11-23 22:54:40,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/data/f7e30fc10/d0a3f08dc74c4e1d81ca5ab67e8b8bbd/FLAGcfd7839cf [2024-11-23 22:54:40,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/data/f7e30fc10/d0a3f08dc74c4e1d81ca5ab67e8b8bbd [2024-11-23 22:54:40,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:54:40,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:54:40,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:40,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:54:40,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:54:40,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:40" (1/1) ... [2024-11-23 22:54:40,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565531c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:40, skipping insertion in model container [2024-11-23 22:54:40,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:40" (1/1) ... [2024-11-23 22:54:40,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:54:41,322 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_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2024-11-23 22:54:41,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:41,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:54:41,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-23 22:54:41,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [380] [2024-11-23 22:54:41,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [415] [2024-11-23 22:54:41,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1483] [2024-11-23 22:54:41,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1823] [2024-11-23 22:54:41,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1858] [2024-11-23 22:54:41,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1875] [2024-11-23 22:54:41,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2277] [2024-11-23 22:54:41,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2286] [2024-11-23 22:54:41,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2652] [2024-11-23 22:54:41,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2749] [2024-11-23 22:54:41,610 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_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/sv-benchmarks/c/product-lines/email_spec27_product23.cil.c[46731,46744] [2024-11-23 22:54:41,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:41,678 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:54:41,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41 WrapperNode [2024-11-23 22:54:41,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:41,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:41,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:54:41,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:54:41,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,810 INFO L138 Inliner]: procedures = 130, calls = 201, calls flagged for inlining = 58, calls inlined = 52, statements flattened = 950 [2024-11-23 22:54:41,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:41,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:54:41,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:54:41,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:54:41,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,857 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-23 22:54:41,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:54:41,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:54:41,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:54:41,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:54:41,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (1/1) ... [2024-11-23 22:54:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:41,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:41,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:54:41,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:54:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-23 22:54:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-23 22:54:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-23 22:54:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-23 22:54:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-23 22:54:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-23 22:54:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-23 22:54:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-23 22:54:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-23 22:54:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-23 22:54:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-23 22:54:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-23 22:54:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-23 22:54:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-23 22:54:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-23 22:54:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-23 22:54:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-23 22:54:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-23 22:54:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-23 22:54:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-23 22:54:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-23 22:54:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-23 22:54:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-23 22:54:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:54:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:54:42,299 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:54:42,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:54:43,723 INFO L? ?]: Removed 506 outVars from TransFormulas that were not future-live. [2024-11-23 22:54:43,724 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:54:43,756 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:54:43,756 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:54:43,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:43 BoogieIcfgContainer [2024-11-23 22:54:43,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:54:43,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:54:43,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:54:43,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:54:43,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:54:40" (1/3) ... [2024-11-23 22:54:43,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43216820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:43, skipping insertion in model container [2024-11-23 22:54:43,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:41" (2/3) ... [2024-11-23 22:54:43,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43216820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:43, skipping insertion in model container [2024-11-23 22:54:43,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:43" (3/3) ... [2024-11-23 22:54:43,772 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2024-11-23 22:54:43,790 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:54:43,794 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product23.cil.c that has 24 procedures, 375 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:54:43,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:54:43,910 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;@3c97c236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:54:43,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:54:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 297 states have (on average 1.5757575757575757) internal successors, (468), 300 states have internal predecessors, (468), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 22:54:43,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 22:54:43,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:43,939 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 22:54:43,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:43,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash 590956865, now seen corresponding path program 1 times [2024-11-23 22:54:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134338149] [2024-11-23 22:54:43,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:44,922 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 22:54:44,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:44,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134338149] [2024-11-23 22:54:44,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134338149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838132257] [2024-11-23 22:54:44,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:44,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:44,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:44,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:44,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:54:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:45,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:54:45,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:45,516 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 22:54:45,516 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838132257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:45,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:45,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-23 22:54:45,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261861856] [2024-11-23 22:54:45,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:45,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:54:45,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:45,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:54:45,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:45,557 INFO L87 Difference]: Start difference. First operand has 375 states, 297 states have (on average 1.5757575757575757) internal successors, (468), 300 states have internal predecessors, (468), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:45,626 INFO L93 Difference]: Finished difference Result 558 states and 839 transitions. [2024-11-23 22:54:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:54:45,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-11-23 22:54:45,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:45,642 INFO L225 Difference]: With dead ends: 558 [2024-11-23 22:54:45,643 INFO L226 Difference]: Without dead ends: 368 [2024-11-23 22:54:45,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:45,651 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:45,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-23 22:54:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-23 22:54:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.570446735395189) internal successors, (457), 293 states have internal predecessors, (457), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-23 22:54:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 562 transitions. [2024-11-23 22:54:45,764 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 562 transitions. Word has length 136 [2024-11-23 22:54:45,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:45,766 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 562 transitions. [2024-11-23 22:54:45,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 562 transitions. [2024-11-23 22:54:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 22:54:45,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:45,773 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 22:54:45,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:45,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:54:45,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:45,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2059570105, now seen corresponding path program 1 times [2024-11-23 22:54:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:45,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708390338] [2024-11-23 22:54:45,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:45,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:46,556 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 22:54:46,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:46,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708390338] [2024-11-23 22:54:46,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708390338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:46,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214724926] [2024-11-23 22:54:46,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:46,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:46,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:46,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:46,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:54:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:47,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:54:47,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:47,084 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 22:54:47,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:47,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214724926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:47,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:47,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:54:47,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211693915] [2024-11-23 22:54:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:47,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:47,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:47,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:47,096 INFO L87 Difference]: Start difference. First operand 368 states and 562 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:47,179 INFO L93 Difference]: Finished difference Result 547 states and 816 transitions. [2024-11-23 22:54:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:47,180 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 22:54:47,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:47,188 INFO L225 Difference]: With dead ends: 547 [2024-11-23 22:54:47,188 INFO L226 Difference]: Without dead ends: 370 [2024-11-23 22:54:47,191 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 22:54:47,191 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 1 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:47,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-23 22:54:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2024-11-23 22:54:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 292 states have (on average 1.5684931506849316) internal successors, (458), 294 states have internal predecessors, (458), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-23 22:54:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 563 transitions. [2024-11-23 22:54:47,222 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 563 transitions. Word has length 136 [2024-11-23 22:54:47,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:47,223 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 563 transitions. [2024-11-23 22:54:47,223 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 22:54:47,223 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 563 transitions. [2024-11-23 22:54:47,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 22:54:47,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:47,227 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:47,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:54:47,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:47,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:47,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1992887578, now seen corresponding path program 1 times [2024-11-23 22:54:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:47,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632275255] [2024-11-23 22:54:47,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:47,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:47,794 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 22:54:47,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:47,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632275255] [2024-11-23 22:54:47,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632275255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:47,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963864492] [2024-11-23 22:54:47,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:47,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:47,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:47,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:47,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:54:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:48,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:48,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:48,344 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 22:54:48,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:48,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963864492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:48,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:48,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 22:54:48,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910076172] [2024-11-23 22:54:48,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:48,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:48,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:48,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:48,346 INFO L87 Difference]: Start difference. First operand 369 states and 563 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:48,422 INFO L93 Difference]: Finished difference Result 786 states and 1218 transitions. [2024-11-23 22:54:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:48,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-23 22:54:48,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:48,432 INFO L225 Difference]: With dead ends: 786 [2024-11-23 22:54:48,432 INFO L226 Difference]: Without dead ends: 443 [2024-11-23 22:54:48,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:48,437 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 134 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:48,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1095 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:48,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-23 22:54:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 435. [2024-11-23 22:54:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 344 states have (on average 1.5872093023255813) internal successors, (546), 346 states have internal predecessors, (546), 67 states have call successors, (67), 23 states have call predecessors, (67), 23 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 22:54:48,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 679 transitions. [2024-11-23 22:54:48,498 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 679 transitions. Word has length 144 [2024-11-23 22:54:48,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:48,498 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 679 transitions. [2024-11-23 22:54:48,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 679 transitions. [2024-11-23 22:54:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-23 22:54:48,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:48,508 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:48,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:48,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:48,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash -44674633, now seen corresponding path program 1 times [2024-11-23 22:54:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:48,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020169146] [2024-11-23 22:54:48,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:49,043 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 22:54:49,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:49,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020169146] [2024-11-23 22:54:49,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020169146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:49,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065558780] [2024-11-23 22:54:49,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:49,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:49,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:49,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:49,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:54:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:49,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:54:49,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:49,610 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 22:54:49,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:49,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065558780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:49,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:49,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 22:54:49,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106274194] [2024-11-23 22:54:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:49,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:54:49,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:49,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:54:49,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:49,615 INFO L87 Difference]: Start difference. First operand 435 states and 679 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:49,739 INFO L93 Difference]: Finished difference Result 861 states and 1348 transitions. [2024-11-23 22:54:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:54:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-23 22:54:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:49,747 INFO L225 Difference]: With dead ends: 861 [2024-11-23 22:54:49,748 INFO L226 Difference]: Without dead ends: 437 [2024-11-23 22:54:49,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:49,752 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 2 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:49,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2205 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-23 22:54:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-23 22:54:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 345 states have (on average 1.5855072463768116) internal successors, (547), 348 states have internal predecessors, (547), 67 states have call successors, (67), 23 states have call predecessors, (67), 24 states have return successors, (68), 65 states have call predecessors, (68), 66 states have call successors, (68) [2024-11-23 22:54:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 682 transitions. [2024-11-23 22:54:49,788 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 682 transitions. Word has length 145 [2024-11-23 22:54:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:49,788 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 682 transitions. [2024-11-23 22:54:49,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 682 transitions. [2024-11-23 22:54:49,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:54:49,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:49,798 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:49,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:49,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:49,999 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:50,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:50,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1057722194, now seen corresponding path program 1 times [2024-11-23 22:54:50,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:50,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674098724] [2024-11-23 22:54:50,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:50,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:50,315 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 22:54:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674098724] [2024-11-23 22:54:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674098724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856271345] [2024-11-23 22:54:50,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:50,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:50,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:50,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:50,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:54:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:50,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:54:50,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:50,852 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 22:54:50,852 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:50,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856271345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:50,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:50,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-23 22:54:50,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029507567] [2024-11-23 22:54:50,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:50,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:54:50,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:50,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:54:50,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:54:50,855 INFO L87 Difference]: Start difference. First operand 437 states and 682 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:50,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:50,974 INFO L93 Difference]: Finished difference Result 863 states and 1353 transitions. [2024-11-23 22:54:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:54:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-23 22:54:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:50,980 INFO L225 Difference]: With dead ends: 863 [2024-11-23 22:54:50,980 INFO L226 Difference]: Without dead ends: 439 [2024-11-23 22:54:50,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:54:50,982 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 2 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:50,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2191 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:50,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-23 22:54:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-23 22:54:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.583815028901734) internal successors, (548), 350 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2024-11-23 22:54:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 688 transitions. [2024-11-23 22:54:51,007 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 688 transitions. Word has length 146 [2024-11-23 22:54:51,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:51,008 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 688 transitions. [2024-11-23 22:54:51,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:51,008 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 688 transitions. [2024-11-23 22:54:51,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 22:54:51,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:51,012 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:51,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 22:54:51,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:51,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:51,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 847575476, now seen corresponding path program 1 times [2024-11-23 22:54:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:51,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085429896] [2024-11-23 22:54:51,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:51,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:51,510 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 22:54:51,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:51,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085429896] [2024-11-23 22:54:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085429896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:54:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229229468] [2024-11-23 22:54:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:51,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:54:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:51,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:54:51,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:51,513 INFO L87 Difference]: Start difference. First operand 439 states and 688 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:51,580 INFO L93 Difference]: Finished difference Result 855 states and 1344 transitions. [2024-11-23 22:54:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:54:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-23 22:54:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:51,585 INFO L225 Difference]: With dead ends: 855 [2024-11-23 22:54:51,585 INFO L226 Difference]: Without dead ends: 439 [2024-11-23 22:54:51,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:51,588 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 2 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:51,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2209 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-23 22:54:51,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-23 22:54:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.583815028901734) internal successors, (548), 350 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (72), 65 states have call predecessors, (72), 66 states have call successors, (72) [2024-11-23 22:54:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 687 transitions. [2024-11-23 22:54:51,649 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 687 transitions. Word has length 147 [2024-11-23 22:54:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:51,651 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 687 transitions. [2024-11-23 22:54:51,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-23 22:54:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 687 transitions. [2024-11-23 22:54:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:54:51,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:51,656 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:51,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:54:51,656 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:51,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1665277193, now seen corresponding path program 2 times [2024-11-23 22:54:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:51,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728955401] [2024-11-23 22:54:51,658 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:54:51,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:51,710 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 22:54:51,711 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:54:51,853 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 22:54:51,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728955401] [2024-11-23 22:54:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728955401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:51,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:51,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:54:51,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358642918] [2024-11-23 22:54:51,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:51,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:54:51,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:51,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:54:51,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:51,858 INFO L87 Difference]: Start difference. First operand 439 states and 687 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:51,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:51,923 INFO L93 Difference]: Finished difference Result 608 states and 931 transitions. [2024-11-23 22:54:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:54:51,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2024-11-23 22:54:51,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:51,928 INFO L225 Difference]: With dead ends: 608 [2024-11-23 22:54:51,929 INFO L226 Difference]: Without dead ends: 439 [2024-11-23 22:54:51,930 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 22:54:51,931 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:51,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3333 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:51,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-23 22:54:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-23 22:54:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.5809248554913296) internal successors, (547), 350 states have internal predecessors, (547), 67 states have call successors, (67), 23 states have call predecessors, (67), 25 states have return successors, (72), 65 states have call predecessors, (72), 66 states have call successors, (72) [2024-11-23 22:54:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 686 transitions. [2024-11-23 22:54:51,955 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 686 transitions. Word has length 148 [2024-11-23 22:54:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:51,956 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 686 transitions. [2024-11-23 22:54:51,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 686 transitions. [2024-11-23 22:54:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 22:54:51,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:51,960 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:51,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:54:51,961 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:51,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1376331268, now seen corresponding path program 1 times [2024-11-23 22:54:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:51,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139162422] [2024-11-23 22:54:51,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:52,245 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 22:54:52,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:52,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139162422] [2024-11-23 22:54:52,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139162422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:52,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:52,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:54:52,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777599797] [2024-11-23 22:54:52,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:52,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:54:52,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:52,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:54:52,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:52,248 INFO L87 Difference]: Start difference. First operand 439 states and 686 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 22:54:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:52,322 INFO L93 Difference]: Finished difference Result 857 states and 1345 transitions. [2024-11-23 22:54:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:54:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-23 22:54:52,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:52,327 INFO L225 Difference]: With dead ends: 857 [2024-11-23 22:54:52,327 INFO L226 Difference]: Without dead ends: 441 [2024-11-23 22:54:52,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:54:52,329 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:52,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2208 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:52,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-23 22:54:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-23 22:54:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 347 states have (on average 1.579250720461095) internal successors, (548), 352 states have internal predecessors, (548), 67 states have call successors, (67), 23 states have call predecessors, (67), 26 states have return successors, (74), 65 states have call predecessors, (74), 66 states have call successors, (74) [2024-11-23 22:54:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 689 transitions. [2024-11-23 22:54:52,365 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 689 transitions. Word has length 155 [2024-11-23 22:54:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:52,365 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 689 transitions. [2024-11-23 22:54:52,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 22:54:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 689 transitions. [2024-11-23 22:54:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 22:54:52,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:52,369 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:52,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:54:52,369 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:52,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1154031276, now seen corresponding path program 1 times [2024-11-23 22:54:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:52,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000732479] [2024-11-23 22:54:52,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:52,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:52,671 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 22:54:52,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:52,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000732479] [2024-11-23 22:54:52,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000732479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:52,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:52,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:54:52,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278555367] [2024-11-23 22:54:52,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:52,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:54:52,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:52,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:54:52,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:52,674 INFO L87 Difference]: Start difference. First operand 441 states and 689 transitions. Second operand has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 22:54:52,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:52,878 INFO L93 Difference]: Finished difference Result 859 states and 1344 transitions. [2024-11-23 22:54:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:54:52,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 156 [2024-11-23 22:54:52,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:52,886 INFO L225 Difference]: With dead ends: 859 [2024-11-23 22:54:52,886 INFO L226 Difference]: Without dead ends: 443 [2024-11-23 22:54:52,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:54:52,889 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 7 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:52,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3786 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:52,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-23 22:54:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-23 22:54:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 349 states have (on average 1.5759312320916905) internal successors, (550), 353 states have internal predecessors, (550), 67 states have call successors, (67), 24 states have call predecessors, (67), 26 states have return successors, (73), 65 states have call predecessors, (73), 66 states have call successors, (73) [2024-11-23 22:54:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 690 transitions. [2024-11-23 22:54:52,922 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 690 transitions. Word has length 156 [2024-11-23 22:54:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:52,923 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 690 transitions. [2024-11-23 22:54:52,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-23 22:54:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 690 transitions. [2024-11-23 22:54:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 22:54:52,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:52,927 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:52,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:54:52,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:52,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:52,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1946303772, now seen corresponding path program 1 times [2024-11-23 22:54:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:52,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136688055] [2024-11-23 22:54:52,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:52,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-23 22:54:53,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136688055] [2024-11-23 22:54:53,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136688055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:53,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:53,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:54:53,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428465214] [2024-11-23 22:54:53,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:53,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:54:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:53,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:54:53,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:53,201 INFO L87 Difference]: Start difference. First operand 443 states and 690 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-23 22:54:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:53,449 INFO L93 Difference]: Finished difference Result 862 states and 1351 transitions. [2024-11-23 22:54:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:54:53,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2024-11-23 22:54:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:53,454 INFO L225 Difference]: With dead ends: 862 [2024-11-23 22:54:53,454 INFO L226 Difference]: Without dead ends: 446 [2024-11-23 22:54:53,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:54:53,460 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 5 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:53,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3800 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:53,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-23 22:54:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-23 22:54:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 351 states have (on average 1.5726495726495726) internal successors, (552), 356 states have internal predecessors, (552), 67 states have call successors, (67), 24 states have call predecessors, (67), 27 states have return successors, (78), 65 states have call predecessors, (78), 66 states have call successors, (78) [2024-11-23 22:54:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 697 transitions. [2024-11-23 22:54:53,496 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 697 transitions. Word has length 138 [2024-11-23 22:54:53,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:53,497 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 697 transitions. [2024-11-23 22:54:53,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-23 22:54:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 697 transitions. [2024-11-23 22:54:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 22:54:53,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:53,502 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:53,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:54:53,502 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:53,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:53,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1506725597, now seen corresponding path program 1 times [2024-11-23 22:54:53,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:53,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932816738] [2024-11-23 22:54:53,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:53,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 22:54:53,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:53,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932816738] [2024-11-23 22:54:53,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932816738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:53,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606761073] [2024-11-23 22:54:53,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:53,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:53,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:53,766 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:53,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:54:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:54,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:54,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:54,219 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 22:54:54,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:54:54,369 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 22:54:54,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606761073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:54:54,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:54:54,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-23 22:54:54,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568209287] [2024-11-23 22:54:54,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:54:54,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:54:54,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:54,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:54:54,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:54:54,372 INFO L87 Difference]: Start difference. First operand 446 states and 697 transitions. Second operand has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-23 22:54:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:55,309 INFO L93 Difference]: Finished difference Result 1299 states and 2121 transitions. [2024-11-23 22:54:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:54:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 139 [2024-11-23 22:54:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:55,316 INFO L225 Difference]: With dead ends: 1299 [2024-11-23 22:54:55,317 INFO L226 Difference]: Without dead ends: 884 [2024-11-23 22:54:55,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:54:55,319 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 1391 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:55,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 3992 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:54:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-23 22:54:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 860. [2024-11-23 22:54:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 686 states have (on average 1.6239067055393586) internal successors, (1114), 690 states have internal predecessors, (1114), 146 states have call successors, (146), 25 states have call predecessors, (146), 27 states have return successors, (167), 144 states have call predecessors, (167), 145 states have call successors, (167) [2024-11-23 22:54:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1427 transitions. [2024-11-23 22:54:55,382 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1427 transitions. Word has length 139 [2024-11-23 22:54:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:55,382 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1427 transitions. [2024-11-23 22:54:55,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.9) internal successors, (149), 11 states have internal predecessors, (149), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-23 22:54:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1427 transitions. [2024-11-23 22:54:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 22:54:55,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:55,407 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 22:54:55,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:55,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a66e26ce-725d-4b5a-b7d5-9327220f8a9c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 22:54:55,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:55,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:55,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1161614112, now seen corresponding path program 1 times [2024-11-23 22:54:55,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:55,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79490077] [2024-11-23 22:54:55,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:55,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:55,709 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 22:54:55,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:55,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79490077] [2024-11-23 22:54:55,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79490077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:55,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:55,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:55,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397722114] [2024-11-23 22:54:55,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:55,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:55,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:55,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:55,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:55,711 INFO L87 Difference]: Start difference. First operand 860 states and 1427 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:54:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:55,783 INFO L93 Difference]: Finished difference Result 2030 states and 3427 transitions. [2024-11-23 22:54:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:55,784 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 22:54:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:55,792 INFO L225 Difference]: With dead ends: 2030 [2024-11-23 22:54:55,793 INFO L226 Difference]: Without dead ends: 1251 [2024-11-23 22:54:55,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:55,797 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 131 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:55,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-11-23 22:54:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1243. [2024-11-23 22:54:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 990 states have (on average 1.6434343434343435) internal successors, (1627), 994 states have internal predecessors, (1627), 225 states have call successors, (225), 25 states have call predecessors, (225), 27 states have return successors, (256), 223 states have call predecessors, (256), 224 states have call successors, (256) [2024-11-23 22:54:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2108 transitions. [2024-11-23 22:54:55,886 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2108 transitions. Word has length 162 [2024-11-23 22:54:55,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:55,887 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 2108 transitions. [2024-11-23 22:54:55,887 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 22:54:55,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2108 transitions. [2024-11-23 22:54:55,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 22:54:55,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:55,898 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 22:54:55,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:54:55,898 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:55,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash 884330390, now seen corresponding path program 1 times [2024-11-23 22:54:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331266517] [2024-11-23 22:54:55,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:55,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:55,997 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 22:54:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:55,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331266517] [2024-11-23 22:54:55,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331266517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:55,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:55,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745617463] [2024-11-23 22:54:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:56,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:56,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:56,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:56,002 INFO L87 Difference]: Start difference. First operand 1243 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:54:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:56,151 INFO L93 Difference]: Finished difference Result 2987 states and 5103 transitions. [2024-11-23 22:54:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:56,153 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 22:54:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:56,168 INFO L225 Difference]: With dead ends: 2987 [2024-11-23 22:54:56,168 INFO L226 Difference]: Without dead ends: 1876 [2024-11-23 22:54:56,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:56,174 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 129 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:56,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1114 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-23 22:54:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1868. [2024-11-23 22:54:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1496 states have (on average 1.6530748663101604) internal successors, (2473), 1500 states have internal predecessors, (2473), 344 states have call successors, (344), 25 states have call predecessors, (344), 27 states have return successors, (375), 342 states have call predecessors, (375), 343 states have call successors, (375) [2024-11-23 22:54:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3192 transitions. [2024-11-23 22:54:56,348 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3192 transitions. Word has length 144 [2024-11-23 22:54:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:56,349 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 3192 transitions. [2024-11-23 22:54:56,349 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 22:54:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3192 transitions. [2024-11-23 22:54:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 22:54:56,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:56,368 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 22:54:56,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:54:56,368 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:56,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:56,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1644396626, now seen corresponding path program 1 times [2024-11-23 22:54:56,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:56,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040950515] [2024-11-23 22:54:56,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:56,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:56,468 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 22:54:56,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040950515] [2024-11-23 22:54:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040950515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:56,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:56,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:56,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510781161] [2024-11-23 22:54:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:56,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:56,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:56,471 INFO L87 Difference]: Start difference. First operand 1868 states and 3192 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:54:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:56,646 INFO L93 Difference]: Finished difference Result 4439 states and 7652 transitions. [2024-11-23 22:54:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:56,646 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 22:54:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:56,667 INFO L225 Difference]: With dead ends: 4439 [2024-11-23 22:54:56,668 INFO L226 Difference]: Without dead ends: 2834 [2024-11-23 22:54:56,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:56,675 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 127 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:56,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2024-11-23 22:54:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2826. [2024-11-23 22:54:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2292 states have (on average 1.6609947643979057) internal successors, (3807), 2296 states have internal predecessors, (3807), 506 states have call successors, (506), 25 states have call predecessors, (506), 27 states have return successors, (553), 504 states have call predecessors, (553), 505 states have call successors, (553) [2024-11-23 22:54:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 4866 transitions. [2024-11-23 22:54:56,903 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 4866 transitions. Word has length 164 [2024-11-23 22:54:56,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:56,904 INFO L471 AbstractCegarLoop]: Abstraction has 2826 states and 4866 transitions. [2024-11-23 22:54:56,904 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 22:54:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 4866 transitions. [2024-11-23 22:54:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-23 22:54:56,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:56,930 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 22:54:56,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:54:56,931 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:56,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1351266219, now seen corresponding path program 1 times [2024-11-23 22:54:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058292001] [2024-11-23 22:54:56,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:56,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:57,054 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 22:54:57,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:57,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058292001] [2024-11-23 22:54:57,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058292001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:57,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:57,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:57,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331044641] [2024-11-23 22:54:57,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:57,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:57,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:57,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:57,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:57,057 INFO L87 Difference]: Start difference. First operand 2826 states and 4866 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:54:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:57,367 INFO L93 Difference]: Finished difference Result 6732 states and 11684 transitions. [2024-11-23 22:54:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:57,367 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 22:54:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:57,403 INFO L225 Difference]: With dead ends: 6732 [2024-11-23 22:54:57,404 INFO L226 Difference]: Without dead ends: 4381 [2024-11-23 22:54:57,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:57,415 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 125 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:57,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:57,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2024-11-23 22:54:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4373. [2024-11-23 22:54:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4373 states, 3594 states have (on average 1.6666666666666667) internal successors, (5990), 3598 states have internal predecessors, (5990), 751 states have call successors, (751), 25 states have call predecessors, (751), 27 states have return successors, (824), 749 states have call predecessors, (824), 750 states have call successors, (824) [2024-11-23 22:54:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 7565 transitions. [2024-11-23 22:54:57,772 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 7565 transitions. Word has length 146 [2024-11-23 22:54:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:57,773 INFO L471 AbstractCegarLoop]: Abstraction has 4373 states and 7565 transitions. [2024-11-23 22:54:57,773 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 22:54:57,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 7565 transitions. [2024-11-23 22:54:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-23 22:54:57,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:57,805 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 22:54:57,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:54:57,806 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:57,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1256202518, now seen corresponding path program 1 times [2024-11-23 22:54:57,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:57,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224050261] [2024-11-23 22:54:57,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:57,910 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 22:54:57,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224050261] [2024-11-23 22:54:57,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224050261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:57,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:57,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:57,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445731963] [2024-11-23 22:54:57,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:57,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:57,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:57,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:57,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:57,913 INFO L87 Difference]: Start difference. First operand 4373 states and 7565 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:54:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:58,285 INFO L93 Difference]: Finished difference Result 10826 states and 18836 transitions. [2024-11-23 22:54:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:58,285 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 22:54:58,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:58,340 INFO L225 Difference]: With dead ends: 10826 [2024-11-23 22:54:58,340 INFO L226 Difference]: Without dead ends: 7169 [2024-11-23 22:54:58,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:58,360 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 123 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:58,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1122 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:58,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-11-23 22:54:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7161. [2024-11-23 22:54:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7161 states, 5889 states have (on average 1.663100696213279) internal successors, (9794), 5893 states have internal predecessors, (9794), 1244 states have call successors, (1244), 25 states have call predecessors, (1244), 27 states have return successors, (1361), 1242 states have call predecessors, (1361), 1243 states have call successors, (1361) [2024-11-23 22:54:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 12399 transitions. [2024-11-23 22:54:58,925 INFO L78 Accepts]: Start accepts. Automaton has 7161 states and 12399 transitions. Word has length 166 [2024-11-23 22:54:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:58,926 INFO L471 AbstractCegarLoop]: Abstraction has 7161 states and 12399 transitions. [2024-11-23 22:54:58,927 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 22:54:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7161 states and 12399 transitions. [2024-11-23 22:54:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 22:54:58,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:58,975 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:58,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:54:58,975 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:58,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:58,976 INFO L85 PathProgramCache]: Analyzing trace with hash 692929811, now seen corresponding path program 1 times [2024-11-23 22:54:58,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:58,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237442078] [2024-11-23 22:54:58,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:58,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:59,082 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 22:54:59,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:59,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237442078] [2024-11-23 22:54:59,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237442078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:59,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:59,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:54:59,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075227011] [2024-11-23 22:54:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:59,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:54:59,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:59,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:54:59,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:59,084 INFO L87 Difference]: Start difference. First operand 7161 states and 12399 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:54:59,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:59,757 INFO L93 Difference]: Finished difference Result 18113 states and 31556 transitions. [2024-11-23 22:54:59,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:54:59,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2024-11-23 22:54:59,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:59,859 INFO L225 Difference]: With dead ends: 18113 [2024-11-23 22:54:59,859 INFO L226 Difference]: Without dead ends: 12054 [2024-11-23 22:54:59,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:54:59,896 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 121 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:59,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:59,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12054 states. [2024-11-23 22:55:00,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12054 to 12046. [2024-11-23 22:55:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12046 states, 9952 states have (on average 1.6630827974276527) internal successors, (16551), 9956 states have internal predecessors, (16551), 2066 states have call successors, (2066), 25 states have call predecessors, (2066), 27 states have return successors, (2261), 2064 states have call predecessors, (2261), 2065 states have call successors, (2261) [2024-11-23 22:55:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12046 states to 12046 states and 20878 transitions. [2024-11-23 22:55:00,768 INFO L78 Accepts]: Start accepts. Automaton has 12046 states and 20878 transitions. Word has length 167 [2024-11-23 22:55:00,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:00,768 INFO L471 AbstractCegarLoop]: Abstraction has 12046 states and 20878 transitions. [2024-11-23 22:55:00,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:55:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 12046 states and 20878 transitions. [2024-11-23 22:55:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-23 22:55:00,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:00,831 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:00,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:55:00,831 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:00,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:00,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1072149416, now seen corresponding path program 1 times [2024-11-23 22:55:00,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:00,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878477587] [2024-11-23 22:55:00,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:00,920 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 22:55:00,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:00,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878477587] [2024-11-23 22:55:00,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878477587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:00,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:55:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149627491] [2024-11-23 22:55:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:00,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:55:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:00,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:55:00,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:00,922 INFO L87 Difference]: Start difference. First operand 12046 states and 20878 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:55:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:01,661 INFO L93 Difference]: Finished difference Result 28833 states and 49897 transitions. [2024-11-23 22:55:01,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:55:01,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2024-11-23 22:55:01,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:01,760 INFO L225 Difference]: With dead ends: 28833 [2024-11-23 22:55:01,760 INFO L226 Difference]: Without dead ends: 18841 [2024-11-23 22:55:01,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:01,802 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 119 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:01,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1084 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:01,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2024-11-23 22:55:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 18833. [2024-11-23 22:55:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18833 states, 15536 states have (on average 1.6384526261585994) internal successors, (25455), 15540 states have internal predecessors, (25455), 3269 states have call successors, (3269), 25 states have call predecessors, (3269), 27 states have return successors, (3608), 3267 states have call predecessors, (3608), 3268 states have call successors, (3608) [2024-11-23 22:55:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18833 states to 18833 states and 32332 transitions. [2024-11-23 22:55:03,079 INFO L78 Accepts]: Start accepts. Automaton has 18833 states and 32332 transitions. Word has length 149 [2024-11-23 22:55:03,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:03,079 INFO L471 AbstractCegarLoop]: Abstraction has 18833 states and 32332 transitions. [2024-11-23 22:55:03,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:55:03,080 INFO L276 IsEmpty]: Start isEmpty. Operand 18833 states and 32332 transitions. [2024-11-23 22:55:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-23 22:55:03,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:03,155 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:03,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:55:03,155 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:03,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:03,157 INFO L85 PathProgramCache]: Analyzing trace with hash -733179500, now seen corresponding path program 1 times [2024-11-23 22:55:03,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815741054] [2024-11-23 22:55:03,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:03,291 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 22:55:03,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:03,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815741054] [2024-11-23 22:55:03,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815741054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:03,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:03,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:55:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841887001] [2024-11-23 22:55:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:03,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:55:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:03,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:55:03,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:03,294 INFO L87 Difference]: Start difference. First operand 18833 states and 32332 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:55:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:04,822 INFO L93 Difference]: Finished difference Result 49825 states and 85835 transitions. [2024-11-23 22:55:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:55:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2024-11-23 22:55:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:04,993 INFO L225 Difference]: With dead ends: 49825 [2024-11-23 22:55:04,993 INFO L226 Difference]: Without dead ends: 33659 [2024-11-23 22:55:05,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:05,040 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 117 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:05,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1112 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33659 states. [2024-11-23 22:55:06,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33659 to 33651. [2024-11-23 22:55:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33651 states, 27904 states have (on average 1.634819380733945) internal successors, (45618), 27908 states have internal predecessors, (45618), 5719 states have call successors, (5719), 25 states have call predecessors, (5719), 27 states have return successors, (6332), 5717 states have call predecessors, (6332), 5718 states have call successors, (6332) [2024-11-23 22:55:06,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33651 states to 33651 states and 57669 transitions. [2024-11-23 22:55:06,994 INFO L78 Accepts]: Start accepts. Automaton has 33651 states and 57669 transitions. Word has length 169 [2024-11-23 22:55:06,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:06,995 INFO L471 AbstractCegarLoop]: Abstraction has 33651 states and 57669 transitions. [2024-11-23 22:55:06,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:55:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 33651 states and 57669 transitions. [2024-11-23 22:55:07,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 22:55:07,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:07,086 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 22:55:07,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:55:07,087 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:07,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:07,087 INFO L85 PathProgramCache]: Analyzing trace with hash 67593982, now seen corresponding path program 1 times [2024-11-23 22:55:07,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:07,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555006985] [2024-11-23 22:55:07,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:07,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:07,181 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 22:55:07,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:07,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555006985] [2024-11-23 22:55:07,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555006985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:07,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:07,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:55:07,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486583498] [2024-11-23 22:55:07,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:07,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:55:07,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:07,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:55:07,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:07,185 INFO L87 Difference]: Start difference. First operand 33651 states and 57669 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:55:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:10,071 INFO L93 Difference]: Finished difference Result 91862 states and 157867 transitions. [2024-11-23 22:55:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:55:10,072 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 22:55:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:10,490 INFO L225 Difference]: With dead ends: 91862 [2024-11-23 22:55:10,490 INFO L226 Difference]: Without dead ends: 61757 [2024-11-23 22:55:10,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:10,623 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 115 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:10,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61757 states. [2024-11-23 22:55:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61757 to 61749. [2024-11-23 22:55:13,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61749 states, 51489 states have (on average 1.6301345918545709) internal successors, (83934), 51493 states have internal predecessors, (83934), 10232 states have call successors, (10232), 25 states have call predecessors, (10232), 27 states have return successors, (11377), 10230 states have call predecessors, (11377), 10231 states have call successors, (11377) [2024-11-23 22:55:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61749 states to 61749 states and 105543 transitions. [2024-11-23 22:55:14,239 INFO L78 Accepts]: Start accepts. Automaton has 61749 states and 105543 transitions. Word has length 151 [2024-11-23 22:55:14,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:14,240 INFO L471 AbstractCegarLoop]: Abstraction has 61749 states and 105543 transitions. [2024-11-23 22:55:14,240 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 22:55:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 61749 states and 105543 transitions. [2024-11-23 22:55:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-23 22:55:14,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:14,368 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:14,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:55:14,368 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:14,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -11291084, now seen corresponding path program 1 times [2024-11-23 22:55:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:14,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613374937] [2024-11-23 22:55:14,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:14,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:14,499 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 22:55:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613374937] [2024-11-23 22:55:14,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613374937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:14,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:14,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:55:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366872825] [2024-11-23 22:55:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:14,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:55:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:14,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:55:14,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:14,502 INFO L87 Difference]: Start difference. First operand 61749 states and 105543 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:55:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:17,743 INFO L93 Difference]: Finished difference Result 115719 states and 198156 transitions. [2024-11-23 22:55:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:55:17,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2024-11-23 22:55:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:18,628 INFO L225 Difference]: With dead ends: 115719 [2024-11-23 22:55:18,628 INFO L226 Difference]: Without dead ends: 115542 [2024-11-23 22:55:18,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:55:18,670 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 110 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:18,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115542 states. [2024-11-23 22:55:22,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115542 to 115534. [2024-11-23 22:55:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115534 states, 96906 states have (on average 1.6243989020287701) internal successors, (157414), 96910 states have internal predecessors, (157414), 18600 states have call successors, (18600), 25 states have call predecessors, (18600), 27 states have return successors, (20791), 18598 states have call predecessors, (20791), 18599 states have call successors, (20791) [2024-11-23 22:55:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115534 states to 115534 states and 196805 transitions. [2024-11-23 22:55:23,889 INFO L78 Accepts]: Start accepts. Automaton has 115534 states and 196805 transitions. Word has length 171 [2024-11-23 22:55:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:23,890 INFO L471 AbstractCegarLoop]: Abstraction has 115534 states and 196805 transitions. [2024-11-23 22:55:23,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:55:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 115534 states and 196805 transitions. [2024-11-23 22:55:24,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 22:55:24,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:24,002 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 22:55:24,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 22:55:24,002 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:24,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:24,003 INFO L85 PathProgramCache]: Analyzing trace with hash -616228513, now seen corresponding path program 1 times [2024-11-23 22:55:24,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:24,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626717395] [2024-11-23 22:55:24,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:24,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:24,274 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 22:55:24,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626717395] [2024-11-23 22:55:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626717395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:24,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:24,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:55:24,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755624932] [2024-11-23 22:55:24,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:24,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:24,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:24,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:24,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:24,277 INFO L87 Difference]: Start difference. First operand 115534 states and 196805 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 22:55:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:27,600 INFO L93 Difference]: Finished difference Result 115878 states and 197298 transitions. [2024-11-23 22:55:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:55:27,601 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 22:55:27,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:28,172 INFO L225 Difference]: With dead ends: 115878 [2024-11-23 22:55:28,173 INFO L226 Difference]: Without dead ends: 115709 [2024-11-23 22:55:28,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:28,230 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 488 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:28,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 2389 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:55:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115709 states.