./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:49:40,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:49:40,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:49:40,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:49:40,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:49:41,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:49:41,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:49:41,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:49:41,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:49:41,023 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:49:41,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:49:41,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:49:41,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:49:41,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:49:41,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:49:41,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:49:41,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:41,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:41,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:49:41,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:49:41,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:49:41,027 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_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 [2024-12-02 05:49:41,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:49:41,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:49:41,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:49:41,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:49:41,300 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:49:41,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2024-12-02 05:49:43,957 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/data/d045bc75b/2f598cd1c64a4d0f9ada3fb7db88344b/FLAG688b59a09 [2024-12-02 05:49:44,230 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:49:44,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2024-12-02 05:49:44,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/data/d045bc75b/2f598cd1c64a4d0f9ada3fb7db88344b/FLAG688b59a09 [2024-12-02 05:49:44,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/data/d045bc75b/2f598cd1c64a4d0f9ada3fb7db88344b [2024-12-02 05:49:44,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:49:44,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:49:44,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:44,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:49:44,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:49:44,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:44,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ea3241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44, skipping insertion in model container [2024-12-02 05:49:44,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:44,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:49:44,774 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_3ea99379-33eb-464e-86ad-a66d832176a0/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2024-12-02 05:49:44,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:44,825 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:49:44,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-12-02 05:49:44,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [167] [2024-12-02 05:49:44,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [533] [2024-12-02 05:49:44,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [937] [2024-12-02 05:49:44,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1170] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2250] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2558] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2593] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2602] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2633] [2024-12-02 05:49:44,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2650] [2024-12-02 05:49:44,926 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_3ea99379-33eb-464e-86ad-a66d832176a0/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2024-12-02 05:49:44,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:44,969 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:49:44,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44 WrapperNode [2024-12-02 05:49:44,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:44,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:44,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:49:44,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:49:44,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:44,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,030 INFO L138 Inliner]: procedures = 133, calls = 209, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1082 [2024-12-02 05:49:45,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:45,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:49:45,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:49:45,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:49:45,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,063 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]. [2024-12-02 05:49:45,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:49:45,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:49:45,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:49:45,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:49:45,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:45,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:45,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:49:45,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:49:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-12-02 05:49:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-12-02 05:49:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-12-02 05:49:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:49:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-12-02 05:49:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-12-02 05:49:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-12-02 05:49:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-12-02 05:49:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-12-02 05:49:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-12-02 05:49:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-12-02 05:49:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-12-02 05:49:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:49:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:49:45,394 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:49:45,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:49:46,410 INFO L? ?]: Removed 561 outVars from TransFormulas that were not future-live. [2024-12-02 05:49:46,410 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:49:46,429 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:49:46,429 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:49:46,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:46 BoogieIcfgContainer [2024-12-02 05:49:46,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:49:46,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:49:46,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:49:46,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:49:46,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:49:44" (1/3) ... [2024-12-02 05:49:46,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c84ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:46, skipping insertion in model container [2024-12-02 05:49:46,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44" (2/3) ... [2024-12-02 05:49:46,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c84ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:46, skipping insertion in model container [2024-12-02 05:49:46,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:46" (3/3) ... [2024-12-02 05:49:46,439 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product27.cil.c [2024-12-02 05:49:46,452 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:49:46,454 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product27.cil.c that has 25 procedures, 410 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:49:46,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:49:46,526 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;@7f714ae8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:49:46,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:49:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 322 states have (on average 1.5590062111801242) internal successors, (502), 325 states have internal predecessors, (502), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 05:49:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 05:49:46,548 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:46,548 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] [2024-12-02 05:49:46,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:46,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash 104031693, now seen corresponding path program 1 times [2024-12-02 05:49:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733941318] [2024-12-02 05:49:46,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:47,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733941318] [2024-12-02 05:49:47,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733941318] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:47,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252197741] [2024-12-02 05:49:47,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:47,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:47,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:47,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:49:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:47,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 05:49:47,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 05:49:47,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252197741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:47,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:47,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 05:49:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494338357] [2024-12-02 05:49:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:47,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:47,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:47,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:47,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:49:47,675 INFO L87 Difference]: Start difference. First operand has 410 states, 322 states have (on average 1.5590062111801242) internal successors, (502), 325 states have internal predecessors, (502), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) 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) [2024-12-02 05:49:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:47,770 INFO L93 Difference]: Finished difference Result 625 states and 940 transitions. [2024-12-02 05:49:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:47,773 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 [2024-12-02 05:49:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:47,787 INFO L225 Difference]: With dead ends: 625 [2024-12-02 05:49:47,787 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 05:49:47,793 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 [2024-12-02 05:49:47,796 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 1 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:47,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1237 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:47,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 05:49:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2024-12-02 05:49:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 319 states have internal predecessors, (492), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 05:49:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 615 transitions. [2024-12-02 05:49:47,876 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 615 transitions. Word has length 136 [2024-12-02 05:49:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:47,878 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 615 transitions. [2024-12-02 05:49:47,879 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) [2024-12-02 05:49:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 615 transitions. [2024-12-02 05:49:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 05:49:47,886 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:47,886 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] [2024-12-02 05:49:47,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:49:48,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:48,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:48,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:48,088 INFO L85 PathProgramCache]: Analyzing trace with hash -794802272, now seen corresponding path program 1 times [2024-12-02 05:49:48,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:48,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781356952] [2024-12-02 05:49:48,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 05:49:48,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:48,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781356952] [2024-12-02 05:49:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781356952] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:48,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996159230] [2024-12-02 05:49:48,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:48,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:48,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:48,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:49:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:48,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:49:48,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 05:49:48,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:48,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996159230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:48,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:48,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 05:49:48,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144799196] [2024-12-02 05:49:48,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:48,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:48,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:48,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:49:48,953 INFO L87 Difference]: Start difference. First operand 404 states and 615 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) [2024-12-02 05:49:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:49,009 INFO L93 Difference]: Finished difference Result 861 states and 1330 transitions. [2024-12-02 05:49:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:49,010 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 [2024-12-02 05:49:49,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:49,016 INFO L225 Difference]: With dead ends: 861 [2024-12-02 05:49:49,016 INFO L226 Difference]: Without dead ends: 483 [2024-12-02 05:49:49,018 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 [2024-12-02 05:49:49,019 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 142 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:49,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1201 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-12-02 05:49:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 475. [2024-12-02 05:49:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 374 states have (on average 1.572192513368984) internal successors, (588), 376 states have internal predecessors, (588), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 05:49:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 739 transitions. [2024-12-02 05:49:49,060 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 739 transitions. Word has length 144 [2024-12-02 05:49:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:49,060 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 739 transitions. [2024-12-02 05:49:49,061 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) [2024-12-02 05:49:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 739 transitions. [2024-12-02 05:49:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 05:49:49,066 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:49,066 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:49,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 05:49:49,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:49,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:49,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:49,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1437045639, now seen corresponding path program 1 times [2024-12-02 05:49:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007073082] [2024-12-02 05:49:49,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:49,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 05:49:49,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007073082] [2024-12-02 05:49:49,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007073082] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473332499] [2024-12-02 05:49:49,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:49,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:49,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:49,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 05:49:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:49,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:49:49,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 05:49:49,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:49,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473332499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:49,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:49,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 05:49:49,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364141358] [2024-12-02 05:49:49,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:49,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:49:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:49,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:49:49,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:49:49,873 INFO L87 Difference]: Start difference. First operand 475 states and 739 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:49:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:49,948 INFO L93 Difference]: Finished difference Result 941 states and 1468 transitions. [2024-12-02 05:49:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:49:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2024-12-02 05:49:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:49,952 INFO L225 Difference]: With dead ends: 941 [2024-12-02 05:49:49,953 INFO L226 Difference]: Without dead ends: 477 [2024-12-02 05:49:49,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:49:49,955 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 2 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:49,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2413 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-12-02 05:49:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2024-12-02 05:49:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 375 states have (on average 1.5706666666666667) internal successors, (589), 378 states have internal predecessors, (589), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2024-12-02 05:49:49,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 742 transitions. [2024-12-02 05:49:49,978 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 742 transitions. Word has length 126 [2024-12-02 05:49:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:49,978 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 742 transitions. [2024-12-02 05:49:49,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:49:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 742 transitions. [2024-12-02 05:49:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 05:49:49,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:49,981 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] [2024-12-02 05:49:49,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 05:49:50,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:50,182 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:50,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash 998930378, now seen corresponding path program 1 times [2024-12-02 05:49:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438192818] [2024-12-02 05:49:50,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 05:49:50,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:50,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438192818] [2024-12-02 05:49:50,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438192818] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:50,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359900904] [2024-12-02 05:49:50,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:50,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:50,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:50,456 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:50,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 05:49:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:50,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:49:50,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 05:49:50,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:50,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359900904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:50,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:50,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 05:49:50,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690364683] [2024-12-02 05:49:50,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:50,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:49:50,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:50,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:49:50,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:49:50,855 INFO L87 Difference]: Start difference. First operand 477 states and 742 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) [2024-12-02 05:49:50,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:50,938 INFO L93 Difference]: Finished difference Result 943 states and 1473 transitions. [2024-12-02 05:49:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:49:50,939 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 [2024-12-02 05:49:50,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:50,943 INFO L225 Difference]: With dead ends: 943 [2024-12-02 05:49:50,943 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 05:49:50,945 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 [2024-12-02 05:49:50,945 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 2 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:50,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2399 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 05:49:50,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-12-02 05:49:50,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 376 states have (on average 1.5691489361702127) internal successors, (590), 380 states have internal predecessors, (590), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2024-12-02 05:49:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 748 transitions. [2024-12-02 05:49:50,972 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 748 transitions. Word has length 146 [2024-12-02 05:49:50,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:50,972 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 748 transitions. [2024-12-02 05:49:50,972 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) [2024-12-02 05:49:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 748 transitions. [2024-12-02 05:49:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 05:49:50,976 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:50,976 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] [2024-12-02 05:49:50,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 05:49:51,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:51,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:51,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1711195896, now seen corresponding path program 1 times [2024-12-02 05:49:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:51,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596646197] [2024-12-02 05:49:51,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:51,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 05:49:51,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:51,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596646197] [2024-12-02 05:49:51,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596646197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:51,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:51,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:49:51,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34959941] [2024-12-02 05:49:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:51,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:49:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:51,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:49:51,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:49:51,392 INFO L87 Difference]: Start difference. First operand 479 states and 748 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) [2024-12-02 05:49:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:51,454 INFO L93 Difference]: Finished difference Result 935 states and 1464 transitions. [2024-12-02 05:49:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:49:51,454 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 [2024-12-02 05:49:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:51,459 INFO L225 Difference]: With dead ends: 935 [2024-12-02 05:49:51,459 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 05:49:51,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:49:51,461 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 2 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:51,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2417 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 05:49:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-12-02 05:49:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 376 states have (on average 1.5691489361702127) internal successors, (590), 380 states have internal predecessors, (590), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2024-12-02 05:49:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 747 transitions. [2024-12-02 05:49:51,489 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 747 transitions. Word has length 147 [2024-12-02 05:49:51,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:51,489 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 747 transitions. [2024-12-02 05:49:51,489 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) [2024-12-02 05:49:51,490 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 747 transitions. [2024-12-02 05:49:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 05:49:51,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:51,493 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] [2024-12-02 05:49:51,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:49:51,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:51,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash -487846111, now seen corresponding path program 2 times [2024-12-02 05:49:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:51,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831943745] [2024-12-02 05:49:51,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 05:49:51,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:51,544 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 05:49:51,545 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 05:49:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:49:51,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:51,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831943745] [2024-12-02 05:49:51,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831943745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:51,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:51,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:49:51,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569425656] [2024-12-02 05:49:51,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:51,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:49:51,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:51,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:49:51,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:49:51,660 INFO L87 Difference]: Start difference. First operand 479 states and 747 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) [2024-12-02 05:49:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:51,716 INFO L93 Difference]: Finished difference Result 678 states and 1035 transitions. [2024-12-02 05:49:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:49:51,716 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 [2024-12-02 05:49:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:51,721 INFO L225 Difference]: With dead ends: 678 [2024-12-02 05:49:51,721 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 05:49:51,722 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 [2024-12-02 05:49:51,723 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 0 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3645 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 [2024-12-02 05:49:51,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3645 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 05:49:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-12-02 05:49:51,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 376 states have (on average 1.5664893617021276) internal successors, (589), 380 states have internal predecessors, (589), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2024-12-02 05:49:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 746 transitions. [2024-12-02 05:49:51,748 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 746 transitions. Word has length 148 [2024-12-02 05:49:51,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:51,749 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 746 transitions. [2024-12-02 05:49:51,749 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) [2024-12-02 05:49:51,749 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 746 transitions. [2024-12-02 05:49:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 05:49:51,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:51,752 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] [2024-12-02 05:49:51,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:49:51,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:51,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:51,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1382401708, now seen corresponding path program 1 times [2024-12-02 05:49:51,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:51,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789580375] [2024-12-02 05:49:51,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:51,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 05:49:51,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:51,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789580375] [2024-12-02 05:49:51,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789580375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:51,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:51,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:49:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423193711] [2024-12-02 05:49:51,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:51,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:49:51,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:51,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:49:51,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:49:51,953 INFO L87 Difference]: Start difference. First operand 479 states and 746 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 05:49:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:52,013 INFO L93 Difference]: Finished difference Result 937 states and 1465 transitions. [2024-12-02 05:49:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:49:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2024-12-02 05:49:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:52,018 INFO L225 Difference]: With dead ends: 937 [2024-12-02 05:49:52,018 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 05:49:52,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:49:52,020 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 1 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:52,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2416 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 05:49:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-12-02 05:49:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 377 states have (on average 1.5649867374005304) internal successors, (590), 382 states have internal predecessors, (590), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2024-12-02 05:49:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 749 transitions. [2024-12-02 05:49:52,047 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 749 transitions. Word has length 136 [2024-12-02 05:49:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:52,047 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 749 transitions. [2024-12-02 05:49:52,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 05:49:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 749 transitions. [2024-12-02 05:49:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 05:49:52,051 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:52,051 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] [2024-12-02 05:49:52,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:49:52,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:52,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 405844576, now seen corresponding path program 1 times [2024-12-02 05:49:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:52,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516444481] [2024-12-02 05:49:52,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:52,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 05:49:52,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:52,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516444481] [2024-12-02 05:49:52,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516444481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:52,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:52,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:49:52,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568062471] [2024-12-02 05:49:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:52,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:49:52,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:52,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:49:52,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:49:52,255 INFO L87 Difference]: Start difference. First operand 481 states and 749 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-12-02 05:49:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:52,417 INFO L93 Difference]: Finished difference Result 939 states and 1464 transitions. [2024-12-02 05:49:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:49:52,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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 137 [2024-12-02 05:49:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:52,423 INFO L225 Difference]: With dead ends: 939 [2024-12-02 05:49:52,423 INFO L226 Difference]: Without dead ends: 483 [2024-12-02 05:49:52,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:49:52,426 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 7 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4150 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 [2024-12-02 05:49:52,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4150 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:49:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-12-02 05:49:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-12-02 05:49:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.562005277044855) internal successors, (592), 383 states have internal predecessors, (592), 76 states have call successors, (76), 25 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2024-12-02 05:49:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 750 transitions. [2024-12-02 05:49:52,453 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 750 transitions. Word has length 137 [2024-12-02 05:49:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:52,453 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 750 transitions. [2024-12-02 05:49:52,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-12-02 05:49:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 750 transitions. [2024-12-02 05:49:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 05:49:52,457 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:52,457 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] [2024-12-02 05:49:52,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:49:52,458 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:52,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1496463580, now seen corresponding path program 2 times [2024-12-02 05:49:52,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:52,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264255424] [2024-12-02 05:49:52,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 05:49:52,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:52,500 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 05:49:52,501 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 05:49:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 05:49:52,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:52,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264255424] [2024-12-02 05:49:52,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264255424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:52,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:52,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:49:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897378892] [2024-12-02 05:49:52,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:52,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:49:52,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:52,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:49:52,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:49:52,656 INFO L87 Difference]: Start difference. First operand 483 states and 750 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 05:49:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:52,748 INFO L93 Difference]: Finished difference Result 939 states and 1468 transitions. [2024-12-02 05:49:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:49:52,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2024-12-02 05:49:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:52,753 INFO L225 Difference]: With dead ends: 939 [2024-12-02 05:49:52,753 INFO L226 Difference]: Without dead ends: 485 [2024-12-02 05:49:52,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:49:52,755 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:52,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3002 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:49:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-12-02 05:49:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-12-02 05:49:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 385 states have internal predecessors, (593), 76 states have call successors, (76), 25 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2024-12-02 05:49:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 756 transitions. [2024-12-02 05:49:52,782 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 756 transitions. Word has length 138 [2024-12-02 05:49:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:52,783 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 756 transitions. [2024-12-02 05:49:52,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 05:49:52,783 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 756 transitions. [2024-12-02 05:49:52,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 05:49:52,787 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:52,787 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] [2024-12-02 05:49:52,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:49:52,787 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:52,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1254978523, now seen corresponding path program 1 times [2024-12-02 05:49:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:52,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383678370] [2024-12-02 05:49:52,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:52,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 05:49:53,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383678370] [2024-12-02 05:49:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383678370] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708567814] [2024-12-02 05:49:53,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:53,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:53,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:53,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 05:49:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:53,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:49:53,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:53,385 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:49:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708567814] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:49:53,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:49:53,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-12-02 05:49:53,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309350205] [2024-12-02 05:49:53,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:49:53,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:49:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:53,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:49:53,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:49:53,509 INFO L87 Difference]: Start difference. First operand 485 states and 756 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) [2024-12-02 05:49:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:54,315 INFO L93 Difference]: Finished difference Result 1403 states and 2280 transitions. [2024-12-02 05:49:54,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 05:49:54,316 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 [2024-12-02 05:49:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:54,322 INFO L225 Difference]: With dead ends: 1403 [2024-12-02 05:49:54,322 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 05:49:54,324 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 [2024-12-02 05:49:54,325 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 1582 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:54,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 3861 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 05:49:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 05:49:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 922. [2024-12-02 05:49:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 738 states have (on average 1.6165311653116532) internal successors, (1193), 743 states have internal predecessors, (1193), 155 states have call successors, (155), 25 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2024-12-02 05:49:54,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1524 transitions. [2024-12-02 05:49:54,370 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1524 transitions. Word has length 139 [2024-12-02 05:49:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:54,370 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1524 transitions. [2024-12-02 05:49:54,370 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) [2024-12-02 05:49:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1524 transitions. [2024-12-02 05:49:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 05:49:54,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:54,376 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] [2024-12-02 05:49:54,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 05:49:54,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:54,577 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:54,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1724254356, now seen corresponding path program 1 times [2024-12-02 05:49:54,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:54,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61235924] [2024-12-02 05:49:54,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61235924] [2024-12-02 05:49:54,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61235924] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580838789] [2024-12-02 05:49:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:54,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:54,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:54,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:54,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:54,685 INFO L87 Difference]: Start difference. First operand 922 states and 1524 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 05:49:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:54,764 INFO L93 Difference]: Finished difference Result 2182 states and 3664 transitions. [2024-12-02 05:49:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 143 [2024-12-02 05:49:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:54,776 INFO L225 Difference]: With dead ends: 2182 [2024-12-02 05:49:54,776 INFO L226 Difference]: Without dead ends: 1338 [2024-12-02 05:49:54,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:54,781 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 139 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:54,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1232 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-12-02 05:49:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1330. [2024-12-02 05:49:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1067 states have (on average 1.6363636363636365) internal successors, (1746), 1072 states have internal predecessors, (1746), 234 states have call successors, (234), 25 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2024-12-02 05:49:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 2245 transitions. [2024-12-02 05:49:54,863 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 2245 transitions. Word has length 143 [2024-12-02 05:49:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:54,864 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 2245 transitions. [2024-12-02 05:49:54,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 05:49:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 2245 transitions. [2024-12-02 05:49:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 05:49:54,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:54,872 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] [2024-12-02 05:49:54,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:49:54,872 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:54,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash -722423576, now seen corresponding path program 1 times [2024-12-02 05:49:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:54,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545329593] [2024-12-02 05:49:54,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:49:54,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:54,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545329593] [2024-12-02 05:49:54,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545329593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:54,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:54,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:54,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601366937] [2024-12-02 05:49:54,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:54,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:54,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:54,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:54,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:54,951 INFO L87 Difference]: Start difference. First operand 1330 states and 2245 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, (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) [2024-12-02 05:49:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:55,025 INFO L93 Difference]: Finished difference Result 3204 states and 5444 transitions. [2024-12-02 05:49:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:55,025 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, (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 163 [2024-12-02 05:49:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:55,039 INFO L225 Difference]: With dead ends: 3204 [2024-12-02 05:49:55,039 INFO L226 Difference]: Without dead ends: 2003 [2024-12-02 05:49:55,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:55,045 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 137 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:55,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2024-12-02 05:49:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1995. [2024-12-02 05:49:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1613 states have (on average 1.6466212027278364) internal successors, (2656), 1618 states have internal predecessors, (2656), 353 states have call successors, (353), 25 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2024-12-02 05:49:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 3393 transitions. [2024-12-02 05:49:55,174 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 3393 transitions. Word has length 163 [2024-12-02 05:49:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:55,174 INFO L471 AbstractCegarLoop]: Abstraction has 1995 states and 3393 transitions. [2024-12-02 05:49:55,174 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, (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) [2024-12-02 05:49:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 3393 transitions. [2024-12-02 05:49:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 05:49:55,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:55,186 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] [2024-12-02 05:49:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:49:55,187 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:55,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -946341794, now seen corresponding path program 1 times [2024-12-02 05:49:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443686787] [2024-12-02 05:49:55,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:55,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:55,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443686787] [2024-12-02 05:49:55,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443686787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:55,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:55,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:55,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511589363] [2024-12-02 05:49:55,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:55,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:55,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:55,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:55,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:55,261 INFO L87 Difference]: Start difference. First operand 1995 states and 3393 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-12-02 05:49:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:55,358 INFO L93 Difference]: Finished difference Result 4761 states and 8161 transitions. [2024-12-02 05:49:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:55,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 145 [2024-12-02 05:49:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:55,377 INFO L225 Difference]: With dead ends: 4761 [2024-12-02 05:49:55,377 INFO L226 Difference]: Without dead ends: 3026 [2024-12-02 05:49:55,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:55,385 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 135 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:55,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2024-12-02 05:49:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3018. [2024-12-02 05:49:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3018 states, 2474 states have (on average 1.654810024252223) internal successors, (4094), 2479 states have internal predecessors, (4094), 515 states have call successors, (515), 25 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2024-12-02 05:49:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 5171 transitions. [2024-12-02 05:49:55,529 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 5171 transitions. Word has length 145 [2024-12-02 05:49:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:55,530 INFO L471 AbstractCegarLoop]: Abstraction has 3018 states and 5171 transitions. [2024-12-02 05:49:55,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-12-02 05:49:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 5171 transitions. [2024-12-02 05:49:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 05:49:55,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:55,547 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] [2024-12-02 05:49:55,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:49:55,547 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:55,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1166037129, now seen corresponding path program 1 times [2024-12-02 05:49:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:55,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340348076] [2024-12-02 05:49:55,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:55,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:49:55,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340348076] [2024-12-02 05:49:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340348076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:55,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273543594] [2024-12-02 05:49:55,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:55,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:55,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:55,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:55,628 INFO L87 Difference]: Start difference. First operand 3018 states and 5171 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-12-02 05:49:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:55,763 INFO L93 Difference]: Finished difference Result 7229 states and 12473 transitions. [2024-12-02 05:49:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:55,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 165 [2024-12-02 05:49:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:55,790 INFO L225 Difference]: With dead ends: 7229 [2024-12-02 05:49:55,790 INFO L226 Difference]: Without dead ends: 4683 [2024-12-02 05:49:55,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:55,801 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 133 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:55,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2024-12-02 05:49:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4675. [2024-12-02 05:49:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 3886 states have (on average 1.6605764282038085) internal successors, (6453), 3891 states have internal predecessors, (6453), 760 states have call successors, (760), 25 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2024-12-02 05:49:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 8046 transitions. [2024-12-02 05:49:56,046 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 8046 transitions. Word has length 165 [2024-12-02 05:49:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:56,046 INFO L471 AbstractCegarLoop]: Abstraction has 4675 states and 8046 transitions. [2024-12-02 05:49:56,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-12-02 05:49:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 8046 transitions. [2024-12-02 05:49:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 05:49:56,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:56,070 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] [2024-12-02 05:49:56,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 05:49:56,070 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:56,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1792104094, now seen corresponding path program 1 times [2024-12-02 05:49:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590883154] [2024-12-02 05:49:56,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:56,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:56,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590883154] [2024-12-02 05:49:56,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590883154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:56,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:56,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175153978] [2024-12-02 05:49:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:56,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:56,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:56,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:56,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:56,162 INFO L87 Difference]: Start difference. First operand 4675 states and 8046 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-12-02 05:49:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:56,351 INFO L93 Difference]: Finished difference Result 11353 states and 19673 transitions. [2024-12-02 05:49:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 147 [2024-12-02 05:49:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:56,396 INFO L225 Difference]: With dead ends: 11353 [2024-12-02 05:49:56,396 INFO L226 Difference]: Without dead ends: 7471 [2024-12-02 05:49:56,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:56,410 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 131 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:56,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1236 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2024-12-02 05:49:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7463. [2024-12-02 05:49:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7463 states, 6181 states have (on average 1.6594402200291214) internal successors, (10257), 6186 states have internal predecessors, (10257), 1253 states have call successors, (1253), 25 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2024-12-02 05:49:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7463 states to 7463 states and 12880 transitions. [2024-12-02 05:49:56,780 INFO L78 Accepts]: Start accepts. Automaton has 7463 states and 12880 transitions. Word has length 147 [2024-12-02 05:49:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:56,781 INFO L471 AbstractCegarLoop]: Abstraction has 7463 states and 12880 transitions. [2024-12-02 05:49:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-12-02 05:49:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7463 states and 12880 transitions. [2024-12-02 05:49:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 05:49:56,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:56,813 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:56,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:49:56,813 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:56,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 55023439, now seen corresponding path program 1 times [2024-12-02 05:49:56,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:56,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513591867] [2024-12-02 05:49:56,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:49:56,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513591867] [2024-12-02 05:49:56,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513591867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:56,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:56,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:56,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247939787] [2024-12-02 05:49:56,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:56,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:56,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:56,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:56,926 INFO L87 Difference]: Start difference. First operand 7463 states and 12880 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 05:49:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:57,344 INFO L93 Difference]: Finished difference Result 18835 states and 32705 transitions. [2024-12-02 05:49:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:57,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2024-12-02 05:49:57,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:57,394 INFO L225 Difference]: With dead ends: 18835 [2024-12-02 05:49:57,395 INFO L226 Difference]: Without dead ends: 12551 [2024-12-02 05:49:57,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:57,412 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 129 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:57,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1218 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:57,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2024-12-02 05:49:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12543. [2024-12-02 05:49:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12543 states, 10439 states have (on average 1.6597375227512214) internal successors, (17326), 10444 states have internal predecessors, (17326), 2075 states have call successors, (2075), 25 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2024-12-02 05:49:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12543 states to 12543 states and 21671 transitions. [2024-12-02 05:49:57,890 INFO L78 Accepts]: Start accepts. Automaton has 12543 states and 21671 transitions. Word has length 148 [2024-12-02 05:49:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:57,890 INFO L471 AbstractCegarLoop]: Abstraction has 12543 states and 21671 transitions. [2024-12-02 05:49:57,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 05:49:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12543 states and 21671 transitions. [2024-12-02 05:49:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 05:49:57,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:57,920 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:57,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:49:57,920 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:57,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1660154696, now seen corresponding path program 1 times [2024-12-02 05:49:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246394288] [2024-12-02 05:49:57,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:49:57,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246394288] [2024-12-02 05:49:57,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246394288] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:57,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:57,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152250970] [2024-12-02 05:49:57,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:57,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:57,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:57,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:57,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:57,982 INFO L87 Difference]: Start difference. First operand 12543 states and 21671 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:49:58,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:58,333 INFO L93 Difference]: Finished difference Result 30080 states and 51886 transitions. [2024-12-02 05:49:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:49:58,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2024-12-02 05:49:58,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:58,428 INFO L225 Difference]: With dead ends: 30080 [2024-12-02 05:49:58,429 INFO L226 Difference]: Without dead ends: 19698 [2024-12-02 05:49:58,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:58,465 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 127 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:58,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1188 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19698 states. [2024-12-02 05:49:59,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19698 to 19690. [2024-12-02 05:49:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19690 states, 16383 states have (on average 1.6362082646645912) internal successors, (26806), 16388 states have internal predecessors, (26806), 3278 states have call successors, (3278), 25 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2024-12-02 05:49:59,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19690 states to 19690 states and 33701 transitions. [2024-12-02 05:49:59,742 INFO L78 Accepts]: Start accepts. Automaton has 19690 states and 33701 transitions. Word has length 168 [2024-12-02 05:49:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:59,742 INFO L471 AbstractCegarLoop]: Abstraction has 19690 states and 33701 transitions. [2024-12-02 05:49:59,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:49:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19690 states and 33701 transitions. [2024-12-02 05:49:59,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 05:49:59,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:59,786 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] [2024-12-02 05:49:59,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:49:59,787 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:59,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash 32992462, now seen corresponding path program 1 times [2024-12-02 05:49:59,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:59,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356764453] [2024-12-02 05:49:59,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:59,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:49:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356764453] [2024-12-02 05:49:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356764453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:59,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554558791] [2024-12-02 05:49:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:59,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:49:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:59,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:49:59,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:49:59,923 INFO L87 Difference]: Start difference. First operand 19690 states and 33701 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) [2024-12-02 05:50:00,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:00,563 INFO L93 Difference]: Finished difference Result 52082 states and 89440 transitions. [2024-12-02 05:50:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:50:00,564 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 [2024-12-02 05:50:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:00,686 INFO L225 Difference]: With dead ends: 52082 [2024-12-02 05:50:00,686 INFO L226 Difference]: Without dead ends: 35201 [2024-12-02 05:50:00,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:00,722 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 125 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:00,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2024-12-02 05:50:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35193. [2024-12-02 05:50:01,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35193 states, 29436 states have (on average 1.63286451963582) internal successors, (48065), 29441 states have internal predecessors, (48065), 5728 states have call successors, (5728), 25 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2024-12-02 05:50:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35193 states to 35193 states and 60134 transitions. [2024-12-02 05:50:01,811 INFO L78 Accepts]: Start accepts. Automaton has 35193 states and 60134 transitions. Word has length 169 [2024-12-02 05:50:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:01,811 INFO L471 AbstractCegarLoop]: Abstraction has 35193 states and 60134 transitions. [2024-12-02 05:50:01,811 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) [2024-12-02 05:50:01,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35193 states and 60134 transitions. [2024-12-02 05:50:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 05:50:01,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:01,868 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] [2024-12-02 05:50:01,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 05:50:01,869 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:01,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1574757670, now seen corresponding path program 1 times [2024-12-02 05:50:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:01,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521703007] [2024-12-02 05:50:01,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:01,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:50:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521703007] [2024-12-02 05:50:01,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521703007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:01,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:50:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691775959] [2024-12-02 05:50:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:01,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:50:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:01,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:50:01,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:01,950 INFO L87 Difference]: Start difference. First operand 35193 states and 60134 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) [2024-12-02 05:50:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:03,505 INFO L93 Difference]: Finished difference Result 96094 states and 164632 transitions. [2024-12-02 05:50:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:50:03,505 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 [2024-12-02 05:50:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:03,689 INFO L225 Difference]: With dead ends: 96094 [2024-12-02 05:50:03,690 INFO L226 Difference]: Without dead ends: 64629 [2024-12-02 05:50:03,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:03,754 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 123 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:03,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1218 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64629 states. [2024-12-02 05:50:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64629 to 64621. [2024-12-02 05:50:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64621 states, 54351 states have (on average 1.6284704973229562) internal successors, (88509), 54356 states have internal predecessors, (88509), 10241 states have call successors, (10241), 25 states have call predecessors, (10241), 28 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2024-12-02 05:50:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64621 states to 64621 states and 110136 transitions. [2024-12-02 05:50:05,704 INFO L78 Accepts]: Start accepts. Automaton has 64621 states and 110136 transitions. Word has length 151 [2024-12-02 05:50:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:05,705 INFO L471 AbstractCegarLoop]: Abstraction has 64621 states and 110136 transitions. [2024-12-02 05:50:05,705 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) [2024-12-02 05:50:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 64621 states and 110136 transitions. [2024-12-02 05:50:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 05:50:05,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:05,761 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] [2024-12-02 05:50:05,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 05:50:05,761 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:05,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash 569122222, now seen corresponding path program 1 times [2024-12-02 05:50:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:05,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914178676] [2024-12-02 05:50:05,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:50:05,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:05,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914178676] [2024-12-02 05:50:05,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914178676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:05,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:05,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:50:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455466282] [2024-12-02 05:50:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:05,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:50:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:05,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:50:05,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:05,848 INFO L87 Difference]: Start difference. First operand 64621 states and 110136 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) [2024-12-02 05:50:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:08,444 INFO L93 Difference]: Finished difference Result 121236 states and 206977 transitions. [2024-12-02 05:50:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:50:08,445 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 [2024-12-02 05:50:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:08,817 INFO L225 Difference]: With dead ends: 121236 [2024-12-02 05:50:08,817 INFO L226 Difference]: Without dead ends: 121029 [2024-12-02 05:50:08,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:08,857 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 118 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:08,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1230 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121029 states. [2024-12-02 05:50:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121029 to 121021. [2024-12-02 05:50:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121021 states, 102383 states have (on average 1.6230526552259652) internal successors, (166173), 102388 states have internal predecessors, (166173), 18609 states have call successors, (18609), 25 states have call predecessors, (18609), 28 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2024-12-02 05:50:12,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121021 states to 121021 states and 205582 transitions. [2024-12-02 05:50:12,447 INFO L78 Accepts]: Start accepts. Automaton has 121021 states and 205582 transitions. Word has length 171 [2024-12-02 05:50:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:12,447 INFO L471 AbstractCegarLoop]: Abstraction has 121021 states and 205582 transitions. [2024-12-02 05:50:12,447 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) [2024-12-02 05:50:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 121021 states and 205582 transitions. [2024-12-02 05:50:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 05:50:12,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:12,582 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] [2024-12-02 05:50:12,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 05:50:12,582 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:12,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:12,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1039865477, now seen corresponding path program 1 times [2024-12-02 05:50:12,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:12,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275945867] [2024-12-02 05:50:12,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:50:12,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:12,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275945867] [2024-12-02 05:50:12,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275945867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:12,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:12,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:12,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609669859] [2024-12-02 05:50:12,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:12,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:12,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:12,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:12,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:12,805 INFO L87 Difference]: Start difference. First operand 121021 states and 205582 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) [2024-12-02 05:50:16,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:16,168 INFO L93 Difference]: Finished difference Result 121425 states and 206165 transitions. [2024-12-02 05:50:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:16,168 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 [2024-12-02 05:50:16,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:16,705 INFO L225 Difference]: With dead ends: 121425 [2024-12-02 05:50:16,706 INFO L226 Difference]: Without dead ends: 121226 [2024-12-02 05:50:16,764 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 [2024-12-02 05:50:16,765 INFO L435 NwaCegarLoop]: 649 mSDtfsCounter, 540 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:16,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 2745 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:50:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121226 states. [2024-12-02 05:50:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121226 to 121222. [2024-12-02 05:50:20,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121222 states, 102537 states have (on average 1.622789822210519) internal successors, (166396), 102543 states have internal predecessors, (166396), 18640 states have call successors, (18640), 39 states have call predecessors, (18640), 44 states have return successors, (20836), 18639 states have call predecessors, (20836), 18637 states have call successors, (20836) [2024-12-02 05:50:20,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121222 states to 121222 states and 205872 transitions. [2024-12-02 05:50:20,612 INFO L78 Accepts]: Start accepts. Automaton has 121222 states and 205872 transitions. Word has length 153 [2024-12-02 05:50:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:20,612 INFO L471 AbstractCegarLoop]: Abstraction has 121222 states and 205872 transitions. [2024-12-02 05:50:20,612 INFO L472 AbstractCegarLoop]: INTERPOLANT 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) [2024-12-02 05:50:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 121222 states and 205872 transitions. [2024-12-02 05:50:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 05:50:20,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:20,685 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, 1] [2024-12-02 05:50:20,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 05:50:20,685 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:20,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:20,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2004330344, now seen corresponding path program 1 times [2024-12-02 05:50:20,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:20,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648377196] [2024-12-02 05:50:20,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:20,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:50:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648377196] [2024-12-02 05:50:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648377196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:21,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:21,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 05:50:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497141220] [2024-12-02 05:50:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:21,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 05:50:21,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:21,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 05:50:21,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-12-02 05:50:21,065 INFO L87 Difference]: Start difference. First operand 121222 states and 205872 transitions. Second operand has 15 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 9 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) [2024-12-02 05:50:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:24,275 INFO L93 Difference]: Finished difference Result 121829 states and 206769 transitions. [2024-12-02 05:50:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 05:50:24,276 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 9 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) Word has length 154 [2024-12-02 05:50:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:24,657 INFO L225 Difference]: With dead ends: 121829 [2024-12-02 05:50:24,657 INFO L226 Difference]: Without dead ends: 121423 [2024-12-02 05:50:24,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:50:24,710 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 170 mSDsluCounter, 7737 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:24,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 8333 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:50:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121423 states. [2024-12-02 05:50:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121423 to 121421. [2024-12-02 05:50:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121421 states, 102680 states have (on average 1.6224191663420335) internal successors, (166590), 102689 states have internal predecessors, (166590), 18692 states have call successors, (18692), 42 states have call predecessors, (18692), 48 states have return successors, (20893), 18689 states have call predecessors, (20893), 18686 states have call successors, (20893) [2024-12-02 05:50:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121421 states to 121421 states and 206175 transitions. [2024-12-02 05:50:28,702 INFO L78 Accepts]: Start accepts. Automaton has 121421 states and 206175 transitions. Word has length 154 [2024-12-02 05:50:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:28,703 INFO L471 AbstractCegarLoop]: Abstraction has 121421 states and 206175 transitions. [2024-12-02 05:50:28,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 9 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 7 states have call predecessors, (16), 8 states have call successors, (16) [2024-12-02 05:50:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 121421 states and 206175 transitions. [2024-12-02 05:50:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-02 05:50:28,830 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:28,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:28,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 05:50:28,831 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:28,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:28,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1239846070, now seen corresponding path program 1 times [2024-12-02 05:50:28,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:28,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72146243] [2024-12-02 05:50:28,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:28,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 05:50:29,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:29,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72146243] [2024-12-02 05:50:29,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72146243] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:50:29,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679833279] [2024-12-02 05:50:29,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:29,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:29,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:50:29,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 05:50:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:29,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 05:50:29,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:50:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 05:50:29,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:50:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 05:50:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679833279] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:50:30,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:50:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 8] total 28 [2024-12-02 05:50:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272755218] [2024-12-02 05:50:30,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:50:30,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 05:50:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:30,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 05:50:30,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=693, Unknown=0, NotChecked=0, Total=756 [2024-12-02 05:50:30,255 INFO L87 Difference]: Start difference. First operand 121421 states and 206175 transitions. Second operand has 28 states, 26 states have (on average 10.615384615384615) internal successors, (276), 26 states have internal predecessors, (276), 9 states have call successors, (57), 8 states have call predecessors, (57), 11 states have return successors, (51), 9 states have call predecessors, (51), 9 states have call successors, (51) [2024-12-02 05:50:41,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:41,079 INFO L93 Difference]: Finished difference Result 244853 states and 422033 transitions. [2024-12-02 05:50:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-12-02 05:50:41,080 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 10.615384615384615) internal successors, (276), 26 states have internal predecessors, (276), 9 states have call successors, (57), 8 states have call predecessors, (57), 11 states have return successors, (51), 9 states have call predecessors, (51), 9 states have call successors, (51) Word has length 178 [2024-12-02 05:50:41,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:41,747 INFO L225 Difference]: With dead ends: 244853 [2024-12-02 05:50:41,748 INFO L226 Difference]: Without dead ends: 244266 [2024-12-02 05:50:41,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1501 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=823, Invalid=6149, Unknown=0, NotChecked=0, Total=6972 [2024-12-02 05:50:41,814 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 4129 mSDsluCounter, 3952 mSDsCounter, 0 mSdLazyCounter, 13101 mSolverCounterSat, 1155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 14256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 13101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:41,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 4160 Invalid, 14256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1155 Valid, 13101 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 05:50:41,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244266 states. [2024-12-02 05:50:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244266 to 244101. [2024-12-02 05:50:50,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244101 states, 206289 states have (on average 1.6214243124936376) internal successors, (334482), 206325 states have internal predecessors, (334482), 37632 states have call successors, (37632), 145 states have call predecessors, (37632), 179 states have return successors, (44350), 37630 states have call predecessors, (44350), 37608 states have call successors, (44350) [2024-12-02 05:50:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244101 states to 244101 states and 416464 transitions. [2024-12-02 05:50:51,609 INFO L78 Accepts]: Start accepts. Automaton has 244101 states and 416464 transitions. Word has length 178 [2024-12-02 05:50:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:51,610 INFO L471 AbstractCegarLoop]: Abstraction has 244101 states and 416464 transitions. [2024-12-02 05:50:51,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 10.615384615384615) internal successors, (276), 26 states have internal predecessors, (276), 9 states have call successors, (57), 8 states have call predecessors, (57), 11 states have return successors, (51), 9 states have call predecessors, (51), 9 states have call successors, (51) [2024-12-02 05:50:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 244101 states and 416464 transitions. [2024-12-02 05:50:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 05:50:52,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:52,035 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:52,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 05:50:52,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:52,236 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:52,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -953196923, now seen corresponding path program 1 times [2024-12-02 05:50:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785586344] [2024-12-02 05:50:52,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:50:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:52,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785586344] [2024-12-02 05:50:52,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785586344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:52,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:52,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847013454] [2024-12-02 05:50:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:52,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:52,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:52,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:52,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:52,463 INFO L87 Difference]: Start difference. First operand 244101 states and 416464 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 05:50:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:58,254 INFO L93 Difference]: Finished difference Result 246547 states and 420130 transitions. [2024-12-02 05:50:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:58,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 180 [2024-12-02 05:50:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:59,003 INFO L225 Difference]: With dead ends: 246547 [2024-12-02 05:50:59,003 INFO L226 Difference]: Without dead ends: 244095 [2024-12-02 05:50:59,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:50:59,081 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 623 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:59,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 2894 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:59,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244095 states. [2024-12-02 05:51:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244095 to 244095. [2024-12-02 05:51:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244095 states, 206283 states have (on average 1.6214084534353292) internal successors, (334469), 206319 states have internal predecessors, (334469), 37632 states have call successors, (37632), 145 states have call predecessors, (37632), 179 states have return successors, (44350), 37630 states have call predecessors, (44350), 37608 states have call successors, (44350) [2024-12-02 05:51:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244095 states to 244095 states and 416451 transitions. [2024-12-02 05:51:09,183 INFO L78 Accepts]: Start accepts. Automaton has 244095 states and 416451 transitions. Word has length 180 [2024-12-02 05:51:09,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:09,183 INFO L471 AbstractCegarLoop]: Abstraction has 244095 states and 416451 transitions. [2024-12-02 05:51:09,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 05:51:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 244095 states and 416451 transitions. [2024-12-02 05:51:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 05:51:09,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:09,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:09,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 05:51:09,510 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:09,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash 814456169, now seen corresponding path program 1 times [2024-12-02 05:51:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:09,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421892749] [2024-12-02 05:51:09,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 05:51:09,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:09,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421892749] [2024-12-02 05:51:09,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421892749] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:51:09,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346889465] [2024-12-02 05:51:09,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:09,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:09,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:09,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:51:09,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 05:51:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:10,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:51:10,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:51:10,504 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 05:51:10,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:51:10,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346889465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:10,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:51:10,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 05:51:10,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199607181] [2024-12-02 05:51:10,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:10,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:51:10,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:10,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:51:10,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:10,506 INFO L87 Difference]: Start difference. First operand 244095 states and 416451 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:51:16,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:16,529 INFO L93 Difference]: Finished difference Result 366143 states and 626860 transitions. [2024-12-02 05:51:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:51:16,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2024-12-02 05:51:16,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:17,553 INFO L225 Difference]: With dead ends: 366143 [2024-12-02 05:51:17,553 INFO L226 Difference]: Without dead ends: 244103 [2024-12-02 05:51:17,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:17,774 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 1 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:17,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2398 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:51:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244103 states. [2024-12-02 05:51:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244103 to 244097. [2024-12-02 05:51:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244097 states, 206284 states have (on average 1.6214054410424463) internal successors, (334470), 206321 states have internal predecessors, (334470), 37632 states have call successors, (37632), 145 states have call predecessors, (37632), 180 states have return successors, (44352), 37630 states have call predecessors, (44352), 37608 states have call successors, (44352) [2024-12-02 05:51:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244097 states to 244097 states and 416454 transitions. [2024-12-02 05:51:27,191 INFO L78 Accepts]: Start accepts. Automaton has 244097 states and 416454 transitions. Word has length 180 [2024-12-02 05:51:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:27,191 INFO L471 AbstractCegarLoop]: Abstraction has 244097 states and 416454 transitions. [2024-12-02 05:51:27,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:51:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 244097 states and 416454 transitions. [2024-12-02 05:51:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 05:51:28,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:28,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:28,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 05:51:28,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 05:51:28,694 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:28,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2144669456, now seen corresponding path program 1 times [2024-12-02 05:51:28,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:28,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037950813] [2024-12-02 05:51:28,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 05:51:28,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:28,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037950813] [2024-12-02 05:51:28,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037950813] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:51:28,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078011778] [2024-12-02 05:51:28,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:28,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:28,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:28,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:51:28,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 05:51:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:29,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 05:51:29,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:51:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 05:51:29,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:51:29,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078011778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:29,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:51:29,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2024-12-02 05:51:29,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780151201] [2024-12-02 05:51:29,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:29,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 05:51:29,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:29,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 05:51:29,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:51:29,504 INFO L87 Difference]: Start difference. First operand 244097 states and 416454 transitions. Second operand has 14 states, 13 states have (on average 10.076923076923077) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:51:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:35,830 INFO L93 Difference]: Finished difference Result 247495 states and 421629 transitions. [2024-12-02 05:51:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 05:51:35,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.076923076923077) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) Word has length 181 [2024-12-02 05:51:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:36,581 INFO L225 Difference]: With dead ends: 247495 [2024-12-02 05:51:36,581 INFO L226 Difference]: Without dead ends: 245605 [2024-12-02 05:51:36,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 05:51:36,666 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 902 mSDsluCounter, 8001 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 8762 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:36,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 8762 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 05:51:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245605 states. [2024-12-02 05:51:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245605 to 245527. [2024-12-02 05:51:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245527 states, 207347 states have (on average 1.6203128089627532) internal successors, (335967), 207400 states have internal predecessors, (335967), 37920 states have call successors, (37920), 208 states have call predecessors, (37920), 259 states have return successors, (44751), 37918 states have call predecessors, (44751), 37884 states have call successors, (44751) [2024-12-02 05:51:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245527 states to 245527 states and 418638 transitions. [2024-12-02 05:51:45,482 INFO L78 Accepts]: Start accepts. Automaton has 245527 states and 418638 transitions. Word has length 181 [2024-12-02 05:51:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:45,482 INFO L471 AbstractCegarLoop]: Abstraction has 245527 states and 418638 transitions. [2024-12-02 05:51:45,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.076923076923077) internal successors, (131), 12 states have internal predecessors, (131), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:51:45,482 INFO L276 IsEmpty]: Start isEmpty. Operand 245527 states and 418638 transitions. [2024-12-02 05:51:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 05:51:45,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:45,833 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:45,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 05:51:46,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 05:51:46,034 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:46,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:46,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1228129219, now seen corresponding path program 1 times [2024-12-02 05:51:46,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:46,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433182625] [2024-12-02 05:51:46,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:46,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 05:51:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433182625] [2024-12-02 05:51:46,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433182625] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:51:46,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491733247] [2024-12-02 05:51:46,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:46,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:46,130 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:51:46,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 05:51:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:46,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:51:46,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:51:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 05:51:46,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:51:46,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491733247] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:46,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:51:46,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 16 [2024-12-02 05:51:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172811605] [2024-12-02 05:51:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:46,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 05:51:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:46,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 05:51:46,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:51:46,564 INFO L87 Difference]: Start difference. First operand 245527 states and 418638 transitions. Second operand has 13 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 7 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:51:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:53,478 INFO L93 Difference]: Finished difference Result 249353 states and 424508 transitions. [2024-12-02 05:51:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 05:51:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 7 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 181 [2024-12-02 05:51:53,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:54,212 INFO L225 Difference]: With dead ends: 249353 [2024-12-02 05:51:54,212 INFO L226 Difference]: Without dead ends: 245553 [2024-12-02 05:51:54,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-12-02 05:51:54,295 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 132 mSDsluCounter, 6549 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:54,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 7146 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:54,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245553 states. [2024-12-02 05:52:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245553 to 245551. [2024-12-02 05:52:03,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245551 states, 207359 states have (on average 1.6202769110576343) internal successors, (335979), 207424 states have internal predecessors, (335979), 37920 states have call successors, (37920), 208 states have call predecessors, (37920), 271 states have return successors, (44799), 37918 states have call predecessors, (44799), 37884 states have call successors, (44799) [2024-12-02 05:52:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245551 states to 245551 states and 418698 transitions. [2024-12-02 05:52:03,690 INFO L78 Accepts]: Start accepts. Automaton has 245551 states and 418698 transitions. Word has length 181 [2024-12-02 05:52:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:03,691 INFO L471 AbstractCegarLoop]: Abstraction has 245551 states and 418698 transitions. [2024-12-02 05:52:03,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 7 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:52:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 245551 states and 418698 transitions. [2024-12-02 05:52:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 05:52:04,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:04,029 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:04,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 05:52:04,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 05:52:04,229 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:04,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1762444348, now seen corresponding path program 1 times [2024-12-02 05:52:04,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:52:04,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102376658] [2024-12-02 05:52:04,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:04,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 05:52:04,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:52:04,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102376658] [2024-12-02 05:52:04,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102376658] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776129875] [2024-12-02 05:52:04,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:04,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:04,307 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:04,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 05:52:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:04,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 05:52:04,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 05:52:04,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:04,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776129875] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:04,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:52:04,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-12-02 05:52:04,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113393447] [2024-12-02 05:52:04,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:04,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:52:04,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:52:04,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:52:04,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:52:04,686 INFO L87 Difference]: Start difference. First operand 245551 states and 418698 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 05:52:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:10,250 INFO L93 Difference]: Finished difference Result 249791 states and 425279 transitions. [2024-12-02 05:52:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:52:10,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 181 [2024-12-02 05:52:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:11,168 INFO L225 Difference]: With dead ends: 249791 [2024-12-02 05:52:11,168 INFO L226 Difference]: Without dead ends: 245989 [2024-12-02 05:52:11,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:52:11,243 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 30 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3788 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:11,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3788 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:52:11,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245989 states. [2024-12-02 05:52:19,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245989 to 245743. [2024-12-02 05:52:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245743 states, 207471 states have (on average 1.6200191834039457) internal successors, (336107), 207552 states have internal predecessors, (336107), 37984 states have call successors, (37984), 208 states have call predecessors, (37984), 287 states have return successors, (44931), 37982 states have call predecessors, (44931), 37948 states have call successors, (44931) [2024-12-02 05:52:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245743 states to 245743 states and 419022 transitions. [2024-12-02 05:52:20,471 INFO L78 Accepts]: Start accepts. Automaton has 245743 states and 419022 transitions. Word has length 181 [2024-12-02 05:52:20,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:20,471 INFO L471 AbstractCegarLoop]: Abstraction has 245743 states and 419022 transitions. [2024-12-02 05:52:20,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 05:52:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand 245743 states and 419022 transitions. [2024-12-02 05:52:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 05:52:20,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:20,813 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:20,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 05:52:21,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 05:52:21,014 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:21,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:21,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1633829507, now seen corresponding path program 1 times [2024-12-02 05:52:21,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:52:21,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608865484] [2024-12-02 05:52:21,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:21,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 05:52:21,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:52:21,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608865484] [2024-12-02 05:52:21,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608865484] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:21,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719908023] [2024-12-02 05:52:21,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:21,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:21,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:21,356 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:21,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 05:52:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:21,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 05:52:21,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:21,696 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 05:52:21,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:21,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719908023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:21,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:52:21,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-12-02 05:52:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029795544] [2024-12-02 05:52:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:21,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:52:21,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:52:21,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:21,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:21,698 INFO L87 Difference]: Start difference. First operand 245743 states and 419022 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:52:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:28,530 INFO L93 Difference]: Finished difference Result 365420 states and 623146 transitions. [2024-12-02 05:52:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:52:28,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2024-12-02 05:52:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:29,268 INFO L225 Difference]: With dead ends: 365420 [2024-12-02 05:52:29,268 INFO L226 Difference]: Without dead ends: 242559 [2024-12-02 05:52:29,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:52:29,504 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 4 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:29,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2394 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:52:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242559 states. [2024-12-02 05:52:38,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242559 to 242557. [2024-12-02 05:52:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242557 states, 204825 states have (on average 1.6204906627608935) internal successors, (331917), 204793 states have internal predecessors, (331917), 37448 states have call successors, (37448), 207 states have call predecessors, (37448), 283 states have return successors, (44280), 37556 states have call predecessors, (44280), 37412 states have call successors, (44280) [2024-12-02 05:52:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242557 states to 242557 states and 413645 transitions. [2024-12-02 05:52:39,921 INFO L78 Accepts]: Start accepts. Automaton has 242557 states and 413645 transitions. Word has length 182 [2024-12-02 05:52:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:39,921 INFO L471 AbstractCegarLoop]: Abstraction has 242557 states and 413645 transitions. [2024-12-02 05:52:39,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 05:52:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 242557 states and 413645 transitions. [2024-12-02 05:52:40,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 05:52:40,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:40,255 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:40,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 05:52:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 05:52:40,455 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1144538094, now seen corresponding path program 1 times [2024-12-02 05:52:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:52:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971913505] [2024-12-02 05:52:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 05:52:40,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:52:40,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971913505] [2024-12-02 05:52:40,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971913505] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:40,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240172278] [2024-12-02 05:52:40,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:40,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:40,709 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:40,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 05:52:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:41,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 05:52:41,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 05:52:41,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 05:52:41,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240172278] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:52:41,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:52:41,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2024-12-02 05:52:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754648725] [2024-12-02 05:52:41,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:52:41,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 05:52:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:52:41,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 05:52:41,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1106, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 05:52:41,694 INFO L87 Difference]: Start difference. First operand 242557 states and 413645 transitions. Second operand has 35 states, 34 states have (on average 9.352941176470589) internal successors, (318), 31 states have internal predecessors, (318), 10 states have call successors, (59), 10 states have call predecessors, (59), 13 states have return successors, (52), 13 states have call predecessors, (52), 10 states have call successors, (52) [2024-12-02 05:52:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:58,293 INFO L93 Difference]: Finished difference Result 248204 states and 424642 transitions. [2024-12-02 05:52:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-12-02 05:52:58,293 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 9.352941176470589) internal successors, (318), 31 states have internal predecessors, (318), 10 states have call successors, (59), 10 states have call predecessors, (59), 13 states have return successors, (52), 13 states have call predecessors, (52), 10 states have call successors, (52) Word has length 184 [2024-12-02 05:52:58,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:59,046 INFO L225 Difference]: With dead ends: 248204 [2024-12-02 05:52:59,046 INFO L226 Difference]: Without dead ends: 244859 [2024-12-02 05:52:59,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4817 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1723, Invalid=15569, Unknown=0, NotChecked=0, Total=17292 [2024-12-02 05:52:59,131 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 7838 mSDsluCounter, 4918 mSDsCounter, 0 mSdLazyCounter, 17680 mSolverCounterSat, 2255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7840 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 19935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2255 IncrementalHoareTripleChecker+Valid, 17680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:59,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7840 Valid, 5121 Invalid, 19935 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2255 Valid, 17680 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-12-02 05:52:59,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244859 states. [2024-12-02 05:53:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244859 to 244690. [2024-12-02 05:53:10,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244690 states, 206403 states have (on average 1.6187506964530554) internal successors, (334115), 206406 states have internal predecessors, (334115), 37862 states have call successors, (37862), 297 states have call predecessors, (37862), 424 states have return successors, (44929), 37986 states have call predecessors, (44929), 37808 states have call successors, (44929) [2024-12-02 05:53:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244690 states to 244690 states and 416906 transitions. [2024-12-02 05:53:10,658 INFO L78 Accepts]: Start accepts. Automaton has 244690 states and 416906 transitions. Word has length 184 [2024-12-02 05:53:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:10,658 INFO L471 AbstractCegarLoop]: Abstraction has 244690 states and 416906 transitions. [2024-12-02 05:53:10,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 9.352941176470589) internal successors, (318), 31 states have internal predecessors, (318), 10 states have call successors, (59), 10 states have call predecessors, (59), 13 states have return successors, (52), 13 states have call predecessors, (52), 10 states have call successors, (52) [2024-12-02 05:53:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 244690 states and 416906 transitions. [2024-12-02 05:53:10,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 05:53:10,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:10,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:10,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 05:53:11,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:53:11,168 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:11,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1002430007, now seen corresponding path program 1 times [2024-12-02 05:53:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:53:11,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894390401] [2024-12-02 05:53:11,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:53:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 05:53:12,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:53:12,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894390401] [2024-12-02 05:53:12,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894390401] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:53:12,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738769000] [2024-12-02 05:53:12,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:12,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:53:12,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:53:12,007 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:53:12,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 05:53:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:12,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 05:53:12,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 05:53:13,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:53:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 05:53:13,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738769000] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:53:13,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:53:13,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 49 [2024-12-02 05:53:13,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852526167] [2024-12-02 05:53:13,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:53:13,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-12-02 05:53:13,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:53:13,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-12-02 05:53:13,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2186, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 05:53:13,801 INFO L87 Difference]: Start difference. First operand 244690 states and 416906 transitions. Second operand has 49 states, 40 states have (on average 8.275) internal successors, (331), 46 states have internal predecessors, (331), 16 states have call successors, (62), 10 states have call predecessors, (62), 19 states have return successors, (53), 10 states have call predecessors, (53), 16 states have call successors, (53) [2024-12-02 05:53:47,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:47,720 INFO L93 Difference]: Finished difference Result 767186 states and 1328889 transitions. [2024-12-02 05:53:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 05:53:47,721 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 40 states have (on average 8.275) internal successors, (331), 46 states have internal predecessors, (331), 16 states have call successors, (62), 10 states have call predecessors, (62), 19 states have return successors, (53), 10 states have call predecessors, (53), 16 states have call successors, (53) Word has length 185 [2024-12-02 05:53:47,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:50,866 INFO L225 Difference]: With dead ends: 767186 [2024-12-02 05:53:50,866 INFO L226 Difference]: Without dead ends: 761086 [2024-12-02 05:53:51,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=848, Invalid=7162, Unknown=0, NotChecked=0, Total=8010 [2024-12-02 05:53:51,214 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 7124 mSDsluCounter, 6626 mSDsCounter, 0 mSdLazyCounter, 19914 mSolverCounterSat, 2202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7180 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 22116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 19914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:51,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7180 Valid, 6829 Invalid, 22116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2202 Valid, 19914 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-12-02 05:53:51,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761086 states. [2024-12-02 05:54:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761086 to 745174. [2024-12-02 05:54:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745174 states, 627051 states have (on average 1.6148750261143032) internal successors, (1012609), 627035 states have internal predecessors, (1012609), 116312 states have call successors, (116312), 1175 states have call predecessors, (116312), 1810 states have return successors, (161664), 116963 states have call predecessors, (161664), 116096 states have call successors, (161664) [2024-12-02 05:54:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745174 states to 745174 states and 1290585 transitions. [2024-12-02 05:54:29,875 INFO L78 Accepts]: Start accepts. Automaton has 745174 states and 1290585 transitions. Word has length 185 [2024-12-02 05:54:29,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:54:29,876 INFO L471 AbstractCegarLoop]: Abstraction has 745174 states and 1290585 transitions. [2024-12-02 05:54:29,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 40 states have (on average 8.275) internal successors, (331), 46 states have internal predecessors, (331), 16 states have call successors, (62), 10 states have call predecessors, (62), 19 states have return successors, (53), 10 states have call predecessors, (53), 16 states have call successors, (53) [2024-12-02 05:54:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 745174 states and 1290585 transitions. [2024-12-02 05:54:31,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 05:54:31,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:54:31,525 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:54:31,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-02 05:54:31,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:54:31,726 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:54:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:54:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1232956526, now seen corresponding path program 1 times [2024-12-02 05:54:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:54:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977126583] [2024-12-02 05:54:31,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:54:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:54:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:54:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:54:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977126583] [2024-12-02 05:54:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977126583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:54:32,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:54:32,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 05:54:32,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686679451] [2024-12-02 05:54:32,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:54:32,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 05:54:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:54:32,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 05:54:32,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:54:32,053 INFO L87 Difference]: Start difference. First operand 745174 states and 1290585 transitions. Second operand has 13 states, 11 states have (on average 11.454545454545455) internal successors, (126), 11 states have internal predecessors, (126), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:54:57,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:54:57,125 INFO L93 Difference]: Finished difference Result 775577 states and 1339022 transitions. [2024-12-02 05:54:57,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 05:54:57,126 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.454545454545455) internal successors, (126), 11 states have internal predecessors, (126), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 185 [2024-12-02 05:54:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:00,171 INFO L225 Difference]: With dead ends: 775577 [2024-12-02 05:55:00,171 INFO L226 Difference]: Without dead ends: 743586 [2024-12-02 05:55:00,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:55:00,622 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 130 mSDsluCounter, 6549 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:00,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 7146 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:55:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743586 states. [2024-12-02 05:55:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743586 to 743584. [2024-12-02 05:55:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743584 states, 625983 states have (on average 1.6154064886746127) internal successors, (1011217), 625997 states have internal predecessors, (1011217), 115790 states have call successors, (115790), 1175 states have call predecessors, (115790), 1810 states have return successors, (160902), 116411 states have call predecessors, (160902), 115574 states have call successors, (160902) [2024-12-02 05:55:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743584 states to 743584 states and 1287909 transitions. [2024-12-02 05:55:40,499 INFO L78 Accepts]: Start accepts. Automaton has 743584 states and 1287909 transitions. Word has length 185 [2024-12-02 05:55:40,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:40,499 INFO L471 AbstractCegarLoop]: Abstraction has 743584 states and 1287909 transitions. [2024-12-02 05:55:40,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.454545454545455) internal successors, (126), 11 states have internal predecessors, (126), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 05:55:40,500 INFO L276 IsEmpty]: Start isEmpty. Operand 743584 states and 1287909 transitions. [2024-12-02 05:55:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 05:55:42,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:42,062 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:42,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 05:55:42,062 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:42,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:42,062 INFO L85 PathProgramCache]: Analyzing trace with hash -966286361, now seen corresponding path program 1 times [2024-12-02 05:55:42,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:42,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425006612] [2024-12-02 05:55:42,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:42,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 05:55:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:42,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425006612] [2024-12-02 05:55:42,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425006612] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:42,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656548147] [2024-12-02 05:55:42,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:42,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:42,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:42,179 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:42,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea99379-33eb-464e-86ad-a66d832176a0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 05:55:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:42,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:55:42,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 05:55:42,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656548147] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-12-02 05:55:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772326048] [2024-12-02 05:55:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:42,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:55:42,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:42,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:55:42,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:55:42,588 INFO L87 Difference]: Start difference. First operand 743584 states and 1287909 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)