./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/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 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:35:16,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:35:16,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:35:16,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:35:16,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:35:16,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:35:16,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:35:16,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:35:16,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:35:16,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:35:16,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:35:16,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:35:16,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:35:16,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:35:16,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:35:16,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:35:16,734 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:16,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:16,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:16,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:35:16,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:35:16,735 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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/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 -> 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf [2024-12-02 10:35:16,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:35:16,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:35:16,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:35:16,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:35:16,973 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:35:16,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2024-12-02 10:35:19,591 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/data/b05e21bd7/9974f4bb59b849dbbd2e37257501a1a6/FLAGcdff735d7 [2024-12-02 10:35:19,861 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:35:19,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2024-12-02 10:35:19,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/data/b05e21bd7/9974f4bb59b849dbbd2e37257501a1a6/FLAGcdff735d7 [2024-12-02 10:35:20,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/data/b05e21bd7/9974f4bb59b849dbbd2e37257501a1a6 [2024-12-02 10:35:20,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:35:20,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:35:20,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:20,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:35:20,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:35:20,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c48049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20, skipping insertion in model container [2024-12-02 10:35:20,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:35:20,363 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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2024-12-02 10:35:20,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:20,700 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:35:20,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-12-02 10:35:20,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2024-12-02 10:35:20,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [75] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [308] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [357] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1437] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1849] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1948] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2314] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2619] [2024-12-02 10:35:20,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2985] [2024-12-02 10:35:20,713 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_a697e615-b554-4cd7-b74b-e1dd2803b7e1/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2024-12-02 10:35:20,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:20,823 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:35:20,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20 WrapperNode [2024-12-02 10:35:20,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:20,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:20,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:35:20,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:35:20,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,890 INFO L138 Inliner]: procedures = 133, calls = 208, calls flagged for inlining = 64, calls inlined = 61, statements flattened = 1115 [2024-12-02 10:35:20,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:20,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:35:20,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:35:20,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:35:20,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,927 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 10:35:20,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,945 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:35:20,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:35:20,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:35:20,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:35:20,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (1/1) ... [2024-12-02 10:35:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:21,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:21,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:35:21,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:35:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-12-02 10:35:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-12-02 10:35:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-12-02 10:35:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-12-02 10:35:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-12-02 10:35:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-12-02 10:35:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-12-02 10:35:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-12-02 10:35:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-12-02 10:35:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-12-02 10:35:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-12-02 10:35:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-12-02 10:35:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:35:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:35:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:35:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-12-02 10:35:21,050 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-12-02 10:35:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-12-02 10:35:21,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-12-02 10:35:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:35:21,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:35:21,224 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:35:21,226 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:35:22,143 INFO L? ?]: Removed 565 outVars from TransFormulas that were not future-live. [2024-12-02 10:35:22,143 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:35:22,160 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:35:22,160 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:35:22,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:22 BoogieIcfgContainer [2024-12-02 10:35:22,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:35:22,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:35:22,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:35:22,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:35:22,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:20" (1/3) ... [2024-12-02 10:35:22,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505aad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:22, skipping insertion in model container [2024-12-02 10:35:22,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:20" (2/3) ... [2024-12-02 10:35:22,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505aad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:22, skipping insertion in model container [2024-12-02 10:35:22,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:22" (3/3) ... [2024-12-02 10:35:22,169 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2024-12-02 10:35:22,183 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:35:22,186 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec4_product27.cil.c that has 24 procedures, 404 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:35:22,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:35:22,257 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;@3a055f16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:35:22,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:35:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 322 states have internal predecessors, (499), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 10:35:22,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 10:35:22,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:22,277 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 10:35:22,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:22,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:22,282 INFO L85 PathProgramCache]: Analyzing trace with hash 53259980, now seen corresponding path program 1 times [2024-12-02 10:35:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:22,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7714843] [2024-12-02 10:35:22,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:22,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 10:35:22,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:22,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7714843] [2024-12-02 10:35:22,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7714843] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:22,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807346243] [2024-12-02 10:35:22,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:22,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:22,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:35:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:23,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:35:23,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 10:35:23,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807346243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:23,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:23,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 10:35:23,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511108656] [2024-12-02 10:35:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:23,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:23,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:23,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:23,208 INFO L87 Difference]: Start difference. First operand has 404 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 322 states have internal predecessors, (499), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:23,288 INFO L93 Difference]: Finished difference Result 613 states and 926 transitions. [2024-12-02 10:35:23,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-12-02 10:35:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:23,302 INFO L225 Difference]: With dead ends: 613 [2024-12-02 10:35:23,302 INFO L226 Difference]: Without dead ends: 399 [2024-12-02 10:35:23,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 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 10:35:23,310 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 1 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1223 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 10:35:23,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1223 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:23,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-12-02 10:35:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2024-12-02 10:35:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 314 states have (on average 1.5573248407643312) internal successors, (489), 316 states have internal predecessors, (489), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 10:35:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 608 transitions. [2024-12-02 10:35:23,370 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 608 transitions. Word has length 101 [2024-12-02 10:35:23,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:23,371 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 608 transitions. [2024-12-02 10:35:23,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 608 transitions. [2024-12-02 10:35:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:35:23,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:23,377 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 10:35:23,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:35:23,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:23,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:23,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash -590436135, now seen corresponding path program 1 times [2024-12-02 10:35:23,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:23,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4489265] [2024-12-02 10:35:23,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:35:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4489265] [2024-12-02 10:35:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4489265] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035054852] [2024-12-02 10:35:23,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:23,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:23,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:23,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:35:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:24,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:24,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 10:35:24,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:24,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035054852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:24,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:24,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 10:35:24,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120340438] [2024-12-02 10:35:24,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:24,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:24,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:24,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:24,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:24,141 INFO L87 Difference]: Start difference. First operand 398 states and 608 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:24,184 INFO L93 Difference]: Finished difference Result 849 states and 1316 transitions. [2024-12-02 10:35:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 10:35:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:24,189 INFO L225 Difference]: With dead ends: 849 [2024-12-02 10:35:24,189 INFO L226 Difference]: Without dead ends: 477 [2024-12-02 10:35:24,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 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 10:35:24,191 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 142 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1170 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 10:35:24,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1170 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:24,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-12-02 10:35:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 469. [2024-12-02 10:35:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 371 states have (on average 1.5768194070080863) internal successors, (585), 373 states have internal predecessors, (585), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 10:35:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 732 transitions. [2024-12-02 10:35:24,227 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 732 transitions. Word has length 109 [2024-12-02 10:35:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:24,228 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 732 transitions. [2024-12-02 10:35:24,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 732 transitions. [2024-12-02 10:35:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:35:24,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:24,232 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 10:35:24,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:35:24,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 10:35:24,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:24,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2038366648, now seen corresponding path program 1 times [2024-12-02 10:35:24,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:24,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793134270] [2024-12-02 10:35:24,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:35:24,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:24,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793134270] [2024-12-02 10:35:24,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793134270] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:24,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682586215] [2024-12-02 10:35:24,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:24,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:24,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:24,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:24,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:35:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:24,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:35:24,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:35:24,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:24,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682586215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:24,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:24,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 10:35:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088575780] [2024-12-02 10:35:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:24,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:24,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:24,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:24,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:24,985 INFO L87 Difference]: Start difference. First operand 469 states and 732 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:25,050 INFO L93 Difference]: Finished difference Result 929 states and 1454 transitions. [2024-12-02 10:35:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:25,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-12-02 10:35:25,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:25,056 INFO L225 Difference]: With dead ends: 929 [2024-12-02 10:35:25,056 INFO L226 Difference]: Without dead ends: 471 [2024-12-02 10:35:25,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 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 10:35:25,058 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 2 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2385 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 10:35:25,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2385 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-12-02 10:35:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-12-02 10:35:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 372 states have (on average 1.575268817204301) internal successors, (586), 375 states have internal predecessors, (586), 74 states have call successors, (74), 23 states have call predecessors, (74), 24 states have return successors, (75), 72 states have call predecessors, (75), 73 states have call successors, (75) [2024-12-02 10:35:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2024-12-02 10:35:25,078 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 110 [2024-12-02 10:35:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:25,078 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2024-12-02 10:35:25,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2024-12-02 10:35:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:35:25,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:25,081 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-12-02 10:35:25,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:35:25,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:25,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:25,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2072337069, now seen corresponding path program 1 times [2024-12-02 10:35:25,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:25,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502432423] [2024-12-02 10:35:25,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:25,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 10:35:25,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502432423] [2024-12-02 10:35:25,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502432423] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169690692] [2024-12-02 10:35:25,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:25,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:25,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:25,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:25,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:35:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:25,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:35:25,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:35:25,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169690692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:25,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 10:35:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106406260] [2024-12-02 10:35:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:25,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:25,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:35:25,832 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:25,913 INFO L93 Difference]: Finished difference Result 931 states and 1459 transitions. [2024-12-02 10:35:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:25,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-12-02 10:35:25,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:25,917 INFO L225 Difference]: With dead ends: 931 [2024-12-02 10:35:25,917 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 10:35:25,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:35:25,920 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 2 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2371 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 10:35:25,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2371 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 10:35:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-12-02 10:35:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 373 states have (on average 1.5737265415549597) internal successors, (587), 377 states have internal predecessors, (587), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (80), 72 states have call predecessors, (80), 73 states have call successors, (80) [2024-12-02 10:35:25,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 741 transitions. [2024-12-02 10:35:25,943 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 741 transitions. Word has length 111 [2024-12-02 10:35:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:25,943 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 741 transitions. [2024-12-02 10:35:25,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 741 transitions. [2024-12-02 10:35:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:35:25,946 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:25,946 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:25,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:35:26,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:26,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:26,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:26,147 INFO L85 PathProgramCache]: Analyzing trace with hash 295664180, now seen corresponding path program 1 times [2024-12-02 10:35:26,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:26,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985041389] [2024-12-02 10:35:26,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:35:26,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:26,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985041389] [2024-12-02 10:35:26,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985041389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:26,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:26,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:35:26,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917472234] [2024-12-02 10:35:26,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:26,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:26,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:26,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:26,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:26,297 INFO L87 Difference]: Start difference. First operand 473 states and 741 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:26,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:26,340 INFO L93 Difference]: Finished difference Result 923 states and 1450 transitions. [2024-12-02 10:35:26,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:26,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-12-02 10:35:26,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:26,344 INFO L225 Difference]: With dead ends: 923 [2024-12-02 10:35:26,344 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 10:35:26,345 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 10:35:26,346 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 2 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2389 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 10:35:26,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2389 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 10:35:26,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-12-02 10:35:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 373 states have (on average 1.5737265415549597) internal successors, (587), 377 states have internal predecessors, (587), 74 states have call successors, (74), 23 states have call predecessors, (74), 25 states have return successors, (79), 72 states have call predecessors, (79), 73 states have call successors, (79) [2024-12-02 10:35:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 740 transitions. [2024-12-02 10:35:26,372 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 740 transitions. Word has length 112 [2024-12-02 10:35:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:26,372 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 740 transitions. [2024-12-02 10:35:26,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 740 transitions. [2024-12-02 10:35:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:35:26,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:26,375 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:35:26,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:35:26,375 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:26,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:26,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1117047585, now seen corresponding path program 2 times [2024-12-02 10:35:26,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:26,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343063216] [2024-12-02 10:35:26,375 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:35:26,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:26,397 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:35:26,397 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:35:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 10:35:26,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:26,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343063216] [2024-12-02 10:35:26,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343063216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:26,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:35:26,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025579811] [2024-12-02 10:35:26,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:35:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:26,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:35:26,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:26,523 INFO L87 Difference]: Start difference. First operand 473 states and 740 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:26,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:26,966 INFO L93 Difference]: Finished difference Result 832 states and 1330 transitions. [2024-12-02 10:35:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:35:26,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-12-02 10:35:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:26,972 INFO L225 Difference]: With dead ends: 832 [2024-12-02 10:35:26,972 INFO L226 Difference]: Without dead ends: 828 [2024-12-02 10:35:26,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:35:26,973 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 1056 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:26,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3379 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:35:26,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-12-02 10:35:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 820. [2024-12-02 10:35:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 652 states have (on average 1.602760736196319) internal successors, (1045), 657 states have internal predecessors, (1045), 125 states have call successors, (125), 42 states have call predecessors, (125), 42 states have return successors, (140), 120 states have call predecessors, (140), 124 states have call successors, (140) [2024-12-02 10:35:27,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1310 transitions. [2024-12-02 10:35:27,020 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1310 transitions. Word has length 113 [2024-12-02 10:35:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:27,020 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1310 transitions. [2024-12-02 10:35:27,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1310 transitions. [2024-12-02 10:35:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 10:35:27,024 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:27,025 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:27,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:35:27,025 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:27,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash -16306044, now seen corresponding path program 1 times [2024-12-02 10:35:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843030995] [2024-12-02 10:35:27,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:27,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:35:27,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:27,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843030995] [2024-12-02 10:35:27,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843030995] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:27,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:27,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:35:27,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427857908] [2024-12-02 10:35:27,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:27,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:27,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:27,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:27,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:27,204 INFO L87 Difference]: Start difference. First operand 820 states and 1310 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:27,288 INFO L93 Difference]: Finished difference Result 1609 states and 2580 transitions. [2024-12-02 10:35:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-12-02 10:35:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:27,296 INFO L225 Difference]: With dead ends: 1609 [2024-12-02 10:35:27,296 INFO L226 Difference]: Without dead ends: 824 [2024-12-02 10:35:27,299 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 10:35:27,300 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 1 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2392 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 10:35:27,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2392 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-12-02 10:35:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2024-12-02 10:35:27,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 654 states have (on average 1.6009174311926606) internal successors, (1047), 661 states have internal predecessors, (1047), 125 states have call successors, (125), 42 states have call predecessors, (125), 44 states have return successors, (143), 120 states have call predecessors, (143), 124 states have call successors, (143) [2024-12-02 10:35:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1315 transitions. [2024-12-02 10:35:27,358 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1315 transitions. Word has length 114 [2024-12-02 10:35:27,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:27,359 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1315 transitions. [2024-12-02 10:35:27,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1315 transitions. [2024-12-02 10:35:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:35:27,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:27,365 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:27,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:35:27,366 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:27,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -340236938, now seen corresponding path program 1 times [2024-12-02 10:35:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509540454] [2024-12-02 10:35:27,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 10:35:27,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509540454] [2024-12-02 10:35:27,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509540454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:27,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:27,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:35:27,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872246983] [2024-12-02 10:35:27,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:27,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:35:27,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:27,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:35:27,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:27,536 INFO L87 Difference]: Start difference. First operand 824 states and 1315 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-02 10:35:27,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:27,699 INFO L93 Difference]: Finished difference Result 1608 states and 2573 transitions. [2024-12-02 10:35:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:35:27,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-12-02 10:35:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:27,706 INFO L225 Difference]: With dead ends: 1608 [2024-12-02 10:35:27,706 INFO L226 Difference]: Without dead ends: 828 [2024-12-02 10:35:27,708 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 10:35:27,709 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 7 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4108 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 10:35:27,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4108 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:27,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-12-02 10:35:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 826. [2024-12-02 10:35:27,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 656 states have (on average 1.5990853658536586) internal successors, (1049), 662 states have internal predecessors, (1049), 125 states have call successors, (125), 43 states have call predecessors, (125), 44 states have return successors, (141), 120 states have call predecessors, (141), 124 states have call successors, (141) [2024-12-02 10:35:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1315 transitions. [2024-12-02 10:35:27,751 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1315 transitions. Word has length 115 [2024-12-02 10:35:27,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:27,751 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1315 transitions. [2024-12-02 10:35:27,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-02 10:35:27,751 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1315 transitions. [2024-12-02 10:35:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:35:27,755 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:27,756 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:27,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:35:27,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:27,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1129699793, now seen corresponding path program 2 times [2024-12-02 10:35:27,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:27,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054974967] [2024-12-02 10:35:27,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:35:27,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:27,783 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:35:27,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:35:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 10:35:27,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:27,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054974967] [2024-12-02 10:35:27,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054974967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:27,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:27,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:35:27,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450282327] [2024-12-02 10:35:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:27,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:35:27,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:27,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:35:27,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:27,909 INFO L87 Difference]: Start difference. First operand 826 states and 1315 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:28,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:28,363 INFO L93 Difference]: Finished difference Result 1550 states and 2509 transitions. [2024-12-02 10:35:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:35:28,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-12-02 10:35:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:28,374 INFO L225 Difference]: With dead ends: 1550 [2024-12-02 10:35:28,374 INFO L226 Difference]: Without dead ends: 1544 [2024-12-02 10:35:28,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:35:28,375 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1048 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:28,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 3402 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:35:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-12-02 10:35:28,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1364. [2024-12-02 10:35:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1092 states have (on average 1.6263736263736264) internal successors, (1776), 1102 states have internal predecessors, (1776), 201 states have call successors, (201), 63 states have call predecessors, (201), 70 states have return successors, (256), 198 states have call predecessors, (256), 200 states have call successors, (256) [2024-12-02 10:35:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 2233 transitions. [2024-12-02 10:35:28,450 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 2233 transitions. Word has length 116 [2024-12-02 10:35:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:28,451 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 2233 transitions. [2024-12-02 10:35:28,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 2233 transitions. [2024-12-02 10:35:28,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:35:28,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:28,458 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:28,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:35:28,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:28,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash -831481422, now seen corresponding path program 1 times [2024-12-02 10:35:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551070219] [2024-12-02 10:35:28,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 10:35:28,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:28,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551070219] [2024-12-02 10:35:28,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551070219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:28,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:28,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:35:28,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191921514] [2024-12-02 10:35:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:28,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:35:28,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:28,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:35:28,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:28,633 INFO L87 Difference]: Start difference. First operand 1364 states and 2233 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-02 10:35:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:28,809 INFO L93 Difference]: Finished difference Result 2668 states and 4378 transitions. [2024-12-02 10:35:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:35:28,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2024-12-02 10:35:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:28,818 INFO L225 Difference]: With dead ends: 2668 [2024-12-02 10:35:28,818 INFO L226 Difference]: Without dead ends: 1375 [2024-12-02 10:35:28,823 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 10:35:28,823 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 5 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:28,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4122 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-12-02 10:35:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1371. [2024-12-02 10:35:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1099 states have (on average 1.6223839854413102) internal successors, (1783), 1107 states have internal predecessors, (1783), 201 states have call successors, (201), 65 states have call predecessors, (201), 70 states have return successors, (252), 198 states have call predecessors, (252), 200 states have call successors, (252) [2024-12-02 10:35:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2236 transitions. [2024-12-02 10:35:28,892 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2236 transitions. Word has length 117 [2024-12-02 10:35:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:28,892 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2236 transitions. [2024-12-02 10:35:28,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-02 10:35:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2236 transitions. [2024-12-02 10:35:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:35:28,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:28,899 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:35:28,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:35:28,899 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:28,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1370795680, now seen corresponding path program 1 times [2024-12-02 10:35:28,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:28,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246492910] [2024-12-02 10:35:28,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:35:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246492910] [2024-12-02 10:35:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246492910] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227125737] [2024-12-02 10:35:29,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:29,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:29,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:29,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:29,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:35:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:29,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:35:29,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:35:29,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:29,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227125737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:29,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:29,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 10:35:29,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330613731] [2024-12-02 10:35:29,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:29,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:29,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:29,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:29,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:35:29,402 INFO L87 Difference]: Start difference. First operand 1371 states and 2236 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:29,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:29,494 INFO L93 Difference]: Finished difference Result 2455 states and 3992 transitions. [2024-12-02 10:35:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:29,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-12-02 10:35:29,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:29,503 INFO L225 Difference]: With dead ends: 2455 [2024-12-02 10:35:29,504 INFO L226 Difference]: Without dead ends: 1385 [2024-12-02 10:35:29,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 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 10:35:29,508 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 0 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2386 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 10:35:29,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2386 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-12-02 10:35:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1377. [2024-12-02 10:35:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1102 states have (on average 1.6206896551724137) internal successors, (1786), 1113 states have internal predecessors, (1786), 201 states have call successors, (201), 65 states have call predecessors, (201), 73 states have return successors, (259), 198 states have call predecessors, (259), 200 states have call successors, (259) [2024-12-02 10:35:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2246 transitions. [2024-12-02 10:35:29,583 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2246 transitions. Word has length 119 [2024-12-02 10:35:29,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:29,583 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 2246 transitions. [2024-12-02 10:35:29,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:35:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2246 transitions. [2024-12-02 10:35:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:35:29,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:29,589 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:29,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:35:29,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:29,790 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:29,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:29,790 INFO L85 PathProgramCache]: Analyzing trace with hash 506267550, now seen corresponding path program 1 times [2024-12-02 10:35:29,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:29,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986895813] [2024-12-02 10:35:29,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:29,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:35:29,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:29,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986895813] [2024-12-02 10:35:29,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986895813] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:29,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974713867] [2024-12-02 10:35:29,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:29,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:29,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:29,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:29,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:35:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:30,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:30,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 10:35:30,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:35:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 10:35:30,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974713867] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:35:30,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:35:30,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2024-12-02 10:35:30,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267904283] [2024-12-02 10:35:30,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:35:30,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:35:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:30,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:35:30,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:35:30,318 INFO L87 Difference]: Start difference. First operand 1377 states and 2246 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 10:35:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:30,581 INFO L93 Difference]: Finished difference Result 3895 states and 6578 transitions. [2024-12-02 10:35:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:35:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 119 [2024-12-02 10:35:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:30,598 INFO L225 Difference]: With dead ends: 3895 [2024-12-02 10:35:30,598 INFO L226 Difference]: Without dead ends: 2811 [2024-12-02 10:35:30,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:35:30,604 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 641 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:30,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 3585 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:35:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2024-12-02 10:35:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2771. [2024-12-02 10:35:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2251 states have (on average 1.6610395379831187) internal successors, (3739), 2249 states have internal predecessors, (3739), 451 states have call successors, (451), 63 states have call predecessors, (451), 68 states have return successors, (564), 458 states have call predecessors, (564), 450 states have call successors, (564) [2024-12-02 10:35:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4754 transitions. [2024-12-02 10:35:30,732 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4754 transitions. Word has length 119 [2024-12-02 10:35:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:30,732 INFO L471 AbstractCegarLoop]: Abstraction has 2771 states and 4754 transitions. [2024-12-02 10:35:30,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 10:35:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4754 transitions. [2024-12-02 10:35:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 10:35:30,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:30,746 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:30,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:35:30,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 10:35:30,946 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:30,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1658336737, now seen corresponding path program 1 times [2024-12-02 10:35:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:30,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697609409] [2024-12-02 10:35:30,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:31,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:31,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697609409] [2024-12-02 10:35:31,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697609409] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:31,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:31,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:31,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188422305] [2024-12-02 10:35:31,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:31,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:31,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:31,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:31,011 INFO L87 Difference]: Start difference. First operand 2771 states and 4754 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:31,117 INFO L93 Difference]: Finished difference Result 6724 states and 11678 transitions. [2024-12-02 10:35:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:31,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-12-02 10:35:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:31,141 INFO L225 Difference]: With dead ends: 6724 [2024-12-02 10:35:31,141 INFO L226 Difference]: Without dead ends: 4111 [2024-12-02 10:35:31,150 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 10:35:31,151 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 140 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1211 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 10:35:31,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1211 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2024-12-02 10:35:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4101. [2024-12-02 10:35:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 3327 states have (on average 1.664863240156297) internal successors, (5539), 3313 states have internal predecessors, (5539), 705 states have call successors, (705), 63 states have call predecessors, (705), 68 states have return successors, (886), 724 states have call predecessors, (886), 704 states have call successors, (886) [2024-12-02 10:35:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 7130 transitions. [2024-12-02 10:35:31,354 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 7130 transitions. Word has length 122 [2024-12-02 10:35:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:31,354 INFO L471 AbstractCegarLoop]: Abstraction has 4101 states and 7130 transitions. [2024-12-02 10:35:31,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 7130 transitions. [2024-12-02 10:35:31,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:35:31,373 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:31,373 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-12-02 10:35:31,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:35:31,373 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:31,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash -305988274, now seen corresponding path program 1 times [2024-12-02 10:35:31,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:31,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984033595] [2024-12-02 10:35:31,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:31,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:35:31,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:31,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984033595] [2024-12-02 10:35:31,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984033595] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:31,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073269193] [2024-12-02 10:35:31,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:31,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:31,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:31,465 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:31,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:35:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:31,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:31,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:31,786 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 10:35:31,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073269193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:31,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:31,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 10:35:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481974316] [2024-12-02 10:35:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:31,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:31,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:31,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:31,788 INFO L87 Difference]: Start difference. First operand 4101 states and 7130 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:31,937 INFO L93 Difference]: Finished difference Result 10604 states and 18558 transitions. [2024-12-02 10:35:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-12-02 10:35:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:31,975 INFO L225 Difference]: With dead ends: 10604 [2024-12-02 10:35:31,976 INFO L226 Difference]: Without dead ends: 6771 [2024-12-02 10:35:31,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 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 10:35:31,990 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 138 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1208 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 10:35:31,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1208 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2024-12-02 10:35:32,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 6761. [2024-12-02 10:35:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 5511 states have (on average 1.6706586826347305) internal successors, (9207), 5497 states have internal predecessors, (9207), 1181 states have call successors, (1181), 63 states have call predecessors, (1181), 68 states have return successors, (1426), 1200 states have call predecessors, (1426), 1180 states have call successors, (1426) [2024-12-02 10:35:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 11814 transitions. [2024-12-02 10:35:32,240 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 11814 transitions. Word has length 124 [2024-12-02 10:35:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:32,240 INFO L471 AbstractCegarLoop]: Abstraction has 6761 states and 11814 transitions. [2024-12-02 10:35:32,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 11814 transitions. [2024-12-02 10:35:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:35:32,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:32,258 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2024-12-02 10:35:32,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:35:32,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:32,459 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:32,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash 834789198, now seen corresponding path program 1 times [2024-12-02 10:35:32,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065290212] [2024-12-02 10:35:32,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:35:32,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065290212] [2024-12-02 10:35:32,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065290212] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443659954] [2024-12-02 10:35:32,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:32,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:32,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:32,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:35:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:32,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:32,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:32,900 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 10:35:32,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:32,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443659954] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:32,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:32,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 10:35:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072034752] [2024-12-02 10:35:32,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:32,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:32,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:32,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:32,901 INFO L87 Difference]: Start difference. First operand 6761 states and 11814 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:33,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:33,184 INFO L93 Difference]: Finished difference Result 16418 states and 28894 transitions. [2024-12-02 10:35:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:33,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-12-02 10:35:33,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:33,245 INFO L225 Difference]: With dead ends: 16418 [2024-12-02 10:35:33,246 INFO L226 Difference]: Without dead ends: 10393 [2024-12-02 10:35:33,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 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 10:35:33,268 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 136 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1203 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 10:35:33,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1203 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:33,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10393 states. [2024-12-02 10:35:33,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10393 to 10383. [2024-12-02 10:35:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 8563 states have (on average 1.6728950134298728) internal successors, (14325), 8531 states have internal predecessors, (14325), 1751 states have call successors, (1751), 63 states have call predecessors, (1751), 68 states have return successors, (2146), 1788 states have call predecessors, (2146), 1750 states have call successors, (2146) [2024-12-02 10:35:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 18222 transitions. [2024-12-02 10:35:33,710 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 18222 transitions. Word has length 125 [2024-12-02 10:35:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:33,710 INFO L471 AbstractCegarLoop]: Abstraction has 10383 states and 18222 transitions. [2024-12-02 10:35:33,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 18222 transitions. [2024-12-02 10:35:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:35:33,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:33,747 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:33,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 10:35:33,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:33,948 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:33,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:33,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1222220432, now seen corresponding path program 1 times [2024-12-02 10:35:33,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:33,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808673559] [2024-12-02 10:35:33,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:33,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:33,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:33,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808673559] [2024-12-02 10:35:33,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808673559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:33,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:33,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635568487] [2024-12-02 10:35:33,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:33,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:33,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:33,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:33,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:33,991 INFO L87 Difference]: Start difference. First operand 10383 states and 18222 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:34,235 INFO L93 Difference]: Finished difference Result 25460 states and 44996 transitions. [2024-12-02 10:35:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-12-02 10:35:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:34,286 INFO L225 Difference]: With dead ends: 25460 [2024-12-02 10:35:34,286 INFO L226 Difference]: Without dead ends: 16381 [2024-12-02 10:35:34,339 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 10:35:34,339 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 134 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1203 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 10:35:34,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1203 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16381 states. [2024-12-02 10:35:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16381 to 16371. [2024-12-02 10:35:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16371 states, 13671 states have (on average 1.6754443712969058) internal successors, (22905), 13615 states have internal predecessors, (22905), 2631 states have call successors, (2631), 63 states have call predecessors, (2631), 68 states have return successors, (3282), 2692 states have call predecessors, (3282), 2630 states have call successors, (3282) [2024-12-02 10:35:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16371 states to 16371 states and 28818 transitions. [2024-12-02 10:35:34,965 INFO L78 Accepts]: Start accepts. Automaton has 16371 states and 28818 transitions. Word has length 125 [2024-12-02 10:35:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:34,965 INFO L471 AbstractCegarLoop]: Abstraction has 16371 states and 28818 transitions. [2024-12-02 10:35:34,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 16371 states and 28818 transitions. [2024-12-02 10:35:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 10:35:35,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:35,012 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 10:35:35,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:35:35,013 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:35,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash -120999831, now seen corresponding path program 1 times [2024-12-02 10:35:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:35,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633869897] [2024-12-02 10:35:35,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:35,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:35,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633869897] [2024-12-02 10:35:35,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633869897] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:35,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:35,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:35,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797016580] [2024-12-02 10:35:35,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:35,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:35,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:35,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:35,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:35,092 INFO L87 Difference]: Start difference. First operand 16371 states and 28818 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:35,626 INFO L93 Difference]: Finished difference Result 40970 states and 72636 transitions. [2024-12-02 10:35:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-12-02 10:35:35,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:35,753 INFO L225 Difference]: With dead ends: 40970 [2024-12-02 10:35:35,753 INFO L226 Difference]: Without dead ends: 26721 [2024-12-02 10:35:35,793 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 10:35:35,794 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 132 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1219 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 10:35:35,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1219 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26721 states. [2024-12-02 10:35:36,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26721 to 26711. [2024-12-02 10:35:36,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26711 states, 22191 states have (on average 1.6728854039926095) internal successors, (37123), 22105 states have internal predecessors, (37123), 4451 states have call successors, (4451), 63 states have call predecessors, (4451), 68 states have return successors, (5560), 4542 states have call predecessors, (5560), 4450 states have call successors, (5560) [2024-12-02 10:35:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26711 states to 26711 states and 47134 transitions. [2024-12-02 10:35:36,838 INFO L78 Accepts]: Start accepts. Automaton has 26711 states and 47134 transitions. Word has length 126 [2024-12-02 10:35:36,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:36,839 INFO L471 AbstractCegarLoop]: Abstraction has 26711 states and 47134 transitions. [2024-12-02 10:35:36,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 26711 states and 47134 transitions. [2024-12-02 10:35:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:35:36,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:36,895 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 10:35:36,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:35:36,895 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:36,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash -298657292, now seen corresponding path program 1 times [2024-12-02 10:35:36,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:36,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496082596] [2024-12-02 10:35:36,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:36,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:36,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:36,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496082596] [2024-12-02 10:35:36,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496082596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:36,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917828295] [2024-12-02 10:35:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:36,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:36,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:36,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:36,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:36,952 INFO L87 Difference]: Start difference. First operand 26711 states and 47134 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:38,080 INFO L93 Difference]: Finished difference Result 70654 states and 125090 transitions. [2024-12-02 10:35:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:38,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-12-02 10:35:38,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:38,325 INFO L225 Difference]: With dead ends: 70654 [2024-12-02 10:35:38,325 INFO L226 Difference]: Without dead ends: 47041 [2024-12-02 10:35:38,377 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 10:35:38,378 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 130 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1208 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 10:35:38,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1208 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47041 states. [2024-12-02 10:35:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47041 to 47031. [2024-12-02 10:35:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47031 states, 39223 states have (on average 1.6721566427861203) internal successors, (65587), 39137 states have internal predecessors, (65587), 7739 states have call successors, (7739), 63 states have call predecessors, (7739), 68 states have return successors, (9448), 7830 states have call predecessors, (9448), 7738 states have call successors, (9448) [2024-12-02 10:35:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47031 states to 47031 states and 82774 transitions. [2024-12-02 10:35:39,589 INFO L78 Accepts]: Start accepts. Automaton has 47031 states and 82774 transitions. Word has length 127 [2024-12-02 10:35:39,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:39,590 INFO L471 AbstractCegarLoop]: Abstraction has 47031 states and 82774 transitions. [2024-12-02 10:35:39,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:39,590 INFO L276 IsEmpty]: Start isEmpty. Operand 47031 states and 82774 transitions. [2024-12-02 10:35:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:35:39,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:39,653 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 10:35:39,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:35:39,653 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:39,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:39,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2052440200, now seen corresponding path program 1 times [2024-12-02 10:35:39,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:39,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570198172] [2024-12-02 10:35:39,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:39,746 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:35:39,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:39,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570198172] [2024-12-02 10:35:39,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570198172] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:35:39,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652468739] [2024-12-02 10:35:39,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:39,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:39,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:39,748 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:35:39,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:35:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:40,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:35:40,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:35:40,066 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 10:35:40,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:35:40,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652468739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:40,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:35:40,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 10:35:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53280546] [2024-12-02 10:35:40,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:40,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:40,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:40,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:40,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:35:40,068 INFO L87 Difference]: Start difference. First operand 47031 states and 82774 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:41,558 INFO L93 Difference]: Finished difference Result 115444 states and 203150 transitions. [2024-12-02 10:35:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-12-02 10:35:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:41,770 INFO L225 Difference]: With dead ends: 115444 [2024-12-02 10:35:41,770 INFO L226 Difference]: Without dead ends: 74799 [2024-12-02 10:35:41,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 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 10:35:41,859 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 128 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1178 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 10:35:41,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1178 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74799 states. [2024-12-02 10:35:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74799 to 74789. [2024-12-02 10:35:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74789 states, 62319 states have (on average 1.648598340794942) internal successors, (102739), 62197 states have internal predecessors, (102739), 12401 states have call successors, (12401), 63 states have call predecessors, (12401), 68 states have return successors, (15486), 12528 states have call predecessors, (15486), 12400 states have call successors, (15486) [2024-12-02 10:35:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74789 states to 74789 states and 130626 transitions. [2024-12-02 10:35:44,246 INFO L78 Accepts]: Start accepts. Automaton has 74789 states and 130626 transitions. Word has length 129 [2024-12-02 10:35:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:44,247 INFO L471 AbstractCegarLoop]: Abstraction has 74789 states and 130626 transitions. [2024-12-02 10:35:44,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:44,247 INFO L276 IsEmpty]: Start isEmpty. Operand 74789 states and 130626 transitions. [2024-12-02 10:35:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:35:44,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:44,307 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:44,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:35:44,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a697e615-b554-4cd7-b74b-e1dd2803b7e1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:35:44,507 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:44,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash 543851701, now seen corresponding path program 1 times [2024-12-02 10:35:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501224853] [2024-12-02 10:35:44,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:44,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:44,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501224853] [2024-12-02 10:35:44,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501224853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:44,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:44,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:44,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496281638] [2024-12-02 10:35:44,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:44,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:44,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:44,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:44,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:44,562 INFO L87 Difference]: Start difference. First operand 74789 states and 130626 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:47,177 INFO L93 Difference]: Finished difference Result 202318 states and 354654 transitions. [2024-12-02 10:35:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:47,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-12-02 10:35:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:47,633 INFO L225 Difference]: With dead ends: 202318 [2024-12-02 10:35:47,634 INFO L226 Difference]: Without dead ends: 135633 [2024-12-02 10:35:47,781 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 10:35:47,782 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 126 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1206 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 10:35:47,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1206 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135633 states. [2024-12-02 10:35:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135633 to 135623. [2024-12-02 10:35:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135623 states, 113553 states have (on average 1.6448266448266449) internal successors, (186775), 113389 states have internal predecessors, (186775), 22001 states have call successors, (22001), 63 states have call predecessors, (22001), 68 states have return successors, (27752), 22170 states have call predecessors, (27752), 22000 states have call successors, (27752) [2024-12-02 10:35:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135623 states to 135623 states and 236528 transitions. [2024-12-02 10:35:52,291 INFO L78 Accepts]: Start accepts. Automaton has 135623 states and 236528 transitions. Word has length 129 [2024-12-02 10:35:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:52,291 INFO L471 AbstractCegarLoop]: Abstraction has 135623 states and 236528 transitions. [2024-12-02 10:35:52,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 135623 states and 236528 transitions. [2024-12-02 10:35:52,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 10:35:52,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:52,352 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:52,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:35:52,352 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:35:52,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:52,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1487792625, now seen corresponding path program 1 times [2024-12-02 10:35:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:52,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733232895] [2024-12-02 10:35:52,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:52,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:35:52,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:52,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733232895] [2024-12-02 10:35:52,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733232895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:52,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:52,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:35:52,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125469972] [2024-12-02 10:35:52,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:52,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:35:52,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:52,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:35:52,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:35:52,409 INFO L87 Difference]: Start difference. First operand 135623 states and 236528 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:35:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:57,571 INFO L93 Difference]: Finished difference Result 376926 states and 657112 transitions. [2024-12-02 10:35:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:35:57,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-12-02 10:35:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:58,411 INFO L225 Difference]: With dead ends: 376926 [2024-12-02 10:35:58,412 INFO L226 Difference]: Without dead ends: 253181 [2024-12-02 10:35:58,700 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 10:35:58,701 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 124 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1206 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 10:35:58,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1206 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:35:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253181 states. [2024-12-02 10:36:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253181 to 253171. [2024-12-02 10:36:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253171 states, 213061 states have (on average 1.640023279718015) internal successors, (349425), 212897 states have internal predecessors, (349425), 40041 states have call successors, (40041), 63 states have call predecessors, (40041), 68 states have return successors, (48984), 40210 states have call predecessors, (48984), 40040 states have call successors, (48984) [2024-12-02 10:36:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253171 states to 253171 states and 438450 transitions. [2024-12-02 10:36:07,266 INFO L78 Accepts]: Start accepts. Automaton has 253171 states and 438450 transitions. Word has length 130 [2024-12-02 10:36:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:07,267 INFO L471 AbstractCegarLoop]: Abstraction has 253171 states and 438450 transitions. [2024-12-02 10:36:07,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 253171 states and 438450 transitions. [2024-12-02 10:36:07,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:36:07,343 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:07,343 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:07,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:36:07,343 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:07,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1966701931, now seen corresponding path program 1 times [2024-12-02 10:36:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:07,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101666075] [2024-12-02 10:36:07,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:07,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:36:07,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101666075] [2024-12-02 10:36:07,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101666075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:07,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:07,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48523227] [2024-12-02 10:36:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:07,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:07,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:07,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:07,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:07,390 INFO L87 Difference]: Start difference. First operand 253171 states and 438450 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:15,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:15,436 INFO L93 Difference]: Finished difference Result 477462 states and 828570 transitions. [2024-12-02 10:36:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:15,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2024-12-02 10:36:15,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,079 INFO L225 Difference]: With dead ends: 477462 [2024-12-02 10:36:17,079 INFO L226 Difference]: Without dead ends: 477179 [2024-12-02 10:36:17,201 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 10:36:17,202 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 119 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1212 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 10:36:17,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477179 states. [2024-12-02 10:36:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477179 to 477169. [2024-12-02 10:36:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477169 states, 403835 states have (on average 1.6344422845964317) internal successors, (660045), 403623 states have internal predecessors, (660045), 73265 states have call successors, (73265), 63 states have call predecessors, (73265), 68 states have return successors, (90528), 73482 states have call predecessors, (90528), 73264 states have call successors, (90528) [2024-12-02 10:36:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477169 states to 477169 states and 823838 transitions. [2024-12-02 10:36:31,978 INFO L78 Accepts]: Start accepts. Automaton has 477169 states and 823838 transitions. Word has length 131 [2024-12-02 10:36:31,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:31,978 INFO L471 AbstractCegarLoop]: Abstraction has 477169 states and 823838 transitions. [2024-12-02 10:36:31,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 477169 states and 823838 transitions. [2024-12-02 10:36:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 10:36:32,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:32,071 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:32,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:36:32,071 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:32,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash 26987440, now seen corresponding path program 1 times [2024-12-02 10:36:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:32,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570716089] [2024-12-02 10:36:32,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:32,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 10:36:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:32,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570716089] [2024-12-02 10:36:32,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570716089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:32,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:32,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:32,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452207166] [2024-12-02 10:36:32,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:32,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:32,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:32,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:32,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:32,204 INFO L87 Difference]: Start difference. First operand 477169 states and 823838 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:40,057 INFO L93 Difference]: Finished difference Result 477627 states and 824511 transitions. [2024-12-02 10:36:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:36:40,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-12-02 10:36:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:41,763 INFO L225 Difference]: With dead ends: 477627 [2024-12-02 10:36:41,763 INFO L226 Difference]: Without dead ends: 477430 [2024-12-02 10:36:41,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 10:36:41,869 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 544 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:41,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 3282 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477430 states. [2024-12-02 10:36:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477430 to 477413. [2024-12-02 10:36:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477413 states, 404026 states have (on average 1.6343700652928277) internal successors, (660328), 403816 states have internal predecessors, (660328), 73298 states have call successors, (73298), 80 states have call predecessors, (73298), 88 states have return successors, (90569), 73516 states have call predecessors, (90569), 73296 states have call successors, (90569)