./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b874c7ae88f1b18d69b67ffc194fd453f07c437ad434b3d3b7312d25946d05f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:47:17,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:47:17,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:47:17,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:47:17,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:47:17,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:47:17,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:47:17,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:47:17,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:47:17,404 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:47:17,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:47:17,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:47:17,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:47:17,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:47:17,406 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:47:17,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:47:17,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:47:17,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:47:17,409 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:47:17,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:47:17,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:47:17,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:47:17,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:47:17,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:47:17,411 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_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b874c7ae88f1b18d69b67ffc194fd453f07c437ad434b3d3b7312d25946d05f [2024-11-24 01:47:17,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:47:17,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:47:17,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:47:17,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:47:17,821 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:47:17,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec11_product32.cil.c [2024-11-24 01:47:21,045 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/data/ffce5a941/8f10a2346f784e6fa7ec8c5226bbcadb/FLAG153830d68 [2024-11-24 01:47:21,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:47:21,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c [2024-11-24 01:47:21,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/data/ffce5a941/8f10a2346f784e6fa7ec8c5226bbcadb/FLAG153830d68 [2024-11-24 01:47:21,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/data/ffce5a941/8f10a2346f784e6fa7ec8c5226bbcadb [2024-11-24 01:47:21,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:47:21,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:47:21,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:47:21,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:47:21,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:47:21,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:47:21" (1/1) ... [2024-11-24 01:47:21,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c05f285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:21, skipping insertion in model container [2024-11-24 01:47:21,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:47:21" (1/1) ... [2024-11-24 01:47:21,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:47:22,344 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_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c[45976,45989] [2024-11-24 01:47:22,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:47:22,464 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:47:22,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-24 01:47:22,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1128] [2024-11-24 01:47:22,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1449] [2024-11-24 01:47:22,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1484] [2024-11-24 01:47:22,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1632] [2024-11-24 01:47:22,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1998] [2024-11-24 01:47:22,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2015] [2024-11-24 01:47:22,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2024] [2024-11-24 01:47:22,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2429] [2024-11-24 01:47:22,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2448] [2024-11-24 01:47:22,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2845] [2024-11-24 01:47:22,608 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_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/sv-benchmarks/c/product-lines/email_spec11_product32.cil.c[45976,45989] [2024-11-24 01:47:22,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:47:22,691 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:47:22,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22 WrapperNode [2024-11-24 01:47:22,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:47:22,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:47:22,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:47:22,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:47:22,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,804 INFO L138 Inliner]: procedures = 134, calls = 218, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 978 [2024-11-24 01:47:22,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:47:22,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:47:22,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:47:22,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:47:22,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,857 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-24 01:47:22,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,878 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:47:22,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:47:22,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:47:22,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:47:22,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (1/1) ... [2024-11-24 01:47:22,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:47:22,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:23,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:47:23,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:47:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-24 01:47:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-24 01:47:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-24 01:47:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-24 01:47:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-24 01:47:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-24 01:47:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-24 01:47:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-24 01:47:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-24 01:47:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-24 01:47:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 01:47:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 01:47:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-24 01:47:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-24 01:47:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 01:47:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 01:47:23,063 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 01:47:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 01:47:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:47:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-24 01:47:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-24 01:47:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-24 01:47:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-24 01:47:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-24 01:47:23,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-24 01:47:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-24 01:47:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 01:47:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-24 01:47:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 01:47:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 01:47:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-24 01:47:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:47:23,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:47:23,354 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:47:23,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:47:24,863 INFO L? ?]: Removed 536 outVars from TransFormulas that were not future-live. [2024-11-24 01:47:24,863 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:47:24,892 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:47:24,892 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:47:24,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:47:24 BoogieIcfgContainer [2024-11-24 01:47:24,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:47:24,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:47:24,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:47:24,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:47:24,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:47:21" (1/3) ... [2024-11-24 01:47:24,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3846b38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:47:24, skipping insertion in model container [2024-11-24 01:47:24,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:47:22" (2/3) ... [2024-11-24 01:47:24,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3846b38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:47:24, skipping insertion in model container [2024-11-24 01:47:24,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:47:24" (3/3) ... [2024-11-24 01:47:24,910 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec11_product32.cil.c [2024-11-24 01:47:24,930 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:47:24,935 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec11_product32.cil.c that has 29 procedures, 421 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:47:25,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:47:25,043 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;@2a99122b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:47:25,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:47:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 421 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 332 states have internal predecessors, (508), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 01:47:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 01:47:25,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:25,084 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:25,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:25,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:25,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1834139494, now seen corresponding path program 1 times [2024-11-24 01:47:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:25,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496075047] [2024-11-24 01:47:25,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:47:26,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:26,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496075047] [2024-11-24 01:47:26,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496075047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:26,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156002537] [2024-11-24 01:47:26,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:26,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:26,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:26,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:26,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:47:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:26,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:47:26,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 01:47:26,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:26,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156002537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:26,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:26,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-24 01:47:26,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950044264] [2024-11-24 01:47:26,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:26,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:47:26,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:26,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:47:26,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:26,911 INFO L87 Difference]: Start difference. First operand has 421 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 332 states have internal predecessors, (508), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:26,980 INFO L93 Difference]: Finished difference Result 650 states and 963 transitions. [2024-11-24 01:47:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:47:26,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2024-11-24 01:47:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:26,997 INFO L225 Difference]: With dead ends: 650 [2024-11-24 01:47:26,997 INFO L226 Difference]: Without dead ends: 414 [2024-11-24 01:47:27,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:27,006 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:27,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-24 01:47:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-24 01:47:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 321 states have (on average 1.5482866043613708) internal successors, (497), 325 states have internal predecessors, (497), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 01:47:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 624 transitions. [2024-11-24 01:47:27,095 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 624 transitions. Word has length 148 [2024-11-24 01:47:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:27,096 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 624 transitions. [2024-11-24 01:47:27,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 624 transitions. [2024-11-24 01:47:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 01:47:27,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:27,106 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:27,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:47:27,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:47:27,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:27,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 496403231, now seen corresponding path program 1 times [2024-11-24 01:47:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400689615] [2024-11-24 01:47:27,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:27,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-24 01:47:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400689615] [2024-11-24 01:47:27,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400689615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558018976] [2024-11-24 01:47:27,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:27,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:27,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:27,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:47:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:28,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:47:28,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-24 01:47:28,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558018976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:28,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:28,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:47:28,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369497396] [2024-11-24 01:47:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:28,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:28,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:28,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:28,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:47:28,449 INFO L87 Difference]: Start difference. First operand 414 states and 624 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:28,505 INFO L93 Difference]: Finished difference Result 639 states and 940 transitions. [2024-11-24 01:47:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2024-11-24 01:47:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:28,511 INFO L225 Difference]: With dead ends: 639 [2024-11-24 01:47:28,511 INFO L226 Difference]: Without dead ends: 416 [2024-11-24 01:47:28,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:47:28,514 INFO L435 NwaCegarLoop]: 622 mSDtfsCounter, 1 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:28,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1242 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:28,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-24 01:47:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 415. [2024-11-24 01:47:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 322 states have (on average 1.546583850931677) internal successors, (498), 326 states have internal predecessors, (498), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 01:47:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 625 transitions. [2024-11-24 01:47:28,548 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 625 transitions. Word has length 167 [2024-11-24 01:47:28,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:28,549 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 625 transitions. [2024-11-24 01:47:28,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 625 transitions. [2024-11-24 01:47:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 01:47:28,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:28,555 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:28,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:47:28,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:28,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:28,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash -300685716, now seen corresponding path program 1 times [2024-11-24 01:47:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:28,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320560293] [2024-11-24 01:47:28,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:28,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:47:29,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:29,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320560293] [2024-11-24 01:47:29,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320560293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:29,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629003577] [2024-11-24 01:47:29,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:29,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:29,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:29,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:29,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:47:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:29,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:29,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-24 01:47:29,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:29,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629003577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:29,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:29,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:47:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986406755] [2024-11-24 01:47:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:29,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:29,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:29,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:29,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:47:29,800 INFO L87 Difference]: Start difference. First operand 415 states and 625 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:29,846 INFO L93 Difference]: Finished difference Result 878 states and 1342 transitions. [2024-11-24 01:47:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:29,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2024-11-24 01:47:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:29,852 INFO L225 Difference]: With dead ends: 878 [2024-11-24 01:47:29,852 INFO L226 Difference]: Without dead ends: 489 [2024-11-24 01:47:29,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:47:29,855 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 134 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:29,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1209 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:29,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-24 01:47:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 481. [2024-11-24 01:47:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 374 states have (on average 1.5668449197860963) internal successors, (586), 378 states have internal predecessors, (586), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-24 01:47:29,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 741 transitions. [2024-11-24 01:47:29,913 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 741 transitions. Word has length 175 [2024-11-24 01:47:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:29,914 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 741 transitions. [2024-11-24 01:47:29,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 741 transitions. [2024-11-24 01:47:29,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 01:47:29,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:29,922 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:29,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:47:30,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:30,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:30,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash 597677756, now seen corresponding path program 1 times [2024-11-24 01:47:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:30,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412892910] [2024-11-24 01:47:30,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:47:30,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:30,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412892910] [2024-11-24 01:47:30,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412892910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:30,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414170019] [2024-11-24 01:47:30,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:30,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:30,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:30,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:30,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:47:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:30,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:47:30,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:47:31,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:31,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414170019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:31,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:31,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:47:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433667297] [2024-11-24 01:47:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:31,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:31,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:31,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:31,085 INFO L87 Difference]: Start difference. First operand 481 states and 741 transitions. Second operand has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:31,242 INFO L93 Difference]: Finished difference Result 953 states and 1472 transitions. [2024-11-24 01:47:31,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:31,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 176 [2024-11-24 01:47:31,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:31,249 INFO L225 Difference]: With dead ends: 953 [2024-11-24 01:47:31,249 INFO L226 Difference]: Without dead ends: 483 [2024-11-24 01:47:31,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:31,255 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 2 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:31,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2453 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:47:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-24 01:47:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-11-24 01:47:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.5653333333333332) internal successors, (587), 380 states have internal predecessors, (587), 78 states have call successors, (78), 28 states have call predecessors, (78), 29 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2024-11-24 01:47:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 744 transitions. [2024-11-24 01:47:31,287 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 744 transitions. Word has length 176 [2024-11-24 01:47:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:31,288 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 744 transitions. [2024-11-24 01:47:31,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 744 transitions. [2024-11-24 01:47:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 01:47:31,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:31,292 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:31,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:47:31,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:31,493 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:31,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:31,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1633079776, now seen corresponding path program 1 times [2024-11-24 01:47:31,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:31,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025437230] [2024-11-24 01:47:31,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:31,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-24 01:47:31,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:31,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025437230] [2024-11-24 01:47:31,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025437230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:31,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811606385] [2024-11-24 01:47:31,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:31,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:31,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:31,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:47:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:32,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:47:32,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:47:32,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811606385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:32,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-24 01:47:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218323563] [2024-11-24 01:47:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:32,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:32,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:32,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:47:32,454 INFO L87 Difference]: Start difference. First operand 483 states and 744 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:32,572 INFO L93 Difference]: Finished difference Result 955 states and 1477 transitions. [2024-11-24 01:47:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:32,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 177 [2024-11-24 01:47:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:32,580 INFO L225 Difference]: With dead ends: 955 [2024-11-24 01:47:32,580 INFO L226 Difference]: Without dead ends: 485 [2024-11-24 01:47:32,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:47:32,583 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 2 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:32,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2439 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:47:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-24 01:47:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-11-24 01:47:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5638297872340425) internal successors, (588), 382 states have internal predecessors, (588), 78 states have call successors, (78), 28 states have call predecessors, (78), 30 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-11-24 01:47:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 750 transitions. [2024-11-24 01:47:32,636 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 750 transitions. Word has length 177 [2024-11-24 01:47:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:32,636 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 750 transitions. [2024-11-24 01:47:32,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 750 transitions. [2024-11-24 01:47:32,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 01:47:32,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:32,646 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:32,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:47:32,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:32,847 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:32,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:32,847 INFO L85 PathProgramCache]: Analyzing trace with hash -940279999, now seen corresponding path program 1 times [2024-11-24 01:47:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732082790] [2024-11-24 01:47:32,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:47:33,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:33,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732082790] [2024-11-24 01:47:33,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732082790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:33,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:33,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:47:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014422728] [2024-11-24 01:47:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:33,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:33,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:33,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:33,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:33,197 INFO L87 Difference]: Start difference. First operand 485 states and 750 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:33,269 INFO L93 Difference]: Finished difference Result 947 states and 1468 transitions. [2024-11-24 01:47:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:33,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 178 [2024-11-24 01:47:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:33,276 INFO L225 Difference]: With dead ends: 947 [2024-11-24 01:47:33,276 INFO L226 Difference]: Without dead ends: 485 [2024-11-24 01:47:33,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:33,279 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 2 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:33,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2457 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-24 01:47:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-11-24 01:47:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5638297872340425) internal successors, (588), 382 states have internal predecessors, (588), 78 states have call successors, (78), 28 states have call predecessors, (78), 30 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2024-11-24 01:47:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 749 transitions. [2024-11-24 01:47:33,317 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 749 transitions. Word has length 178 [2024-11-24 01:47:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:33,319 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 749 transitions. [2024-11-24 01:47:33,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 749 transitions. [2024-11-24 01:47:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 01:47:33,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:33,324 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:33,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:47:33,324 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:33,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1574022969, now seen corresponding path program 2 times [2024-11-24 01:47:33,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:33,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661140404] [2024-11-24 01:47:33,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:47:33,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:33,378 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:47:33,378 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:47:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-24 01:47:33,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:33,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661140404] [2024-11-24 01:47:33,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661140404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:33,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:33,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:47:33,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038842092] [2024-11-24 01:47:33,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:33,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:47:33,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:33,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:47:33,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:33,640 INFO L87 Difference]: Start difference. First operand 485 states and 749 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:34,325 INFO L93 Difference]: Finished difference Result 1121 states and 1740 transitions. [2024-11-24 01:47:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:47:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2024-11-24 01:47:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:34,333 INFO L225 Difference]: With dead ends: 1121 [2024-11-24 01:47:34,334 INFO L226 Difference]: Without dead ends: 904 [2024-11-24 01:47:34,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:47:34,336 INFO L435 NwaCegarLoop]: 653 mSDtfsCounter, 679 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:34,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 4019 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:47:34,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2024-11-24 01:47:34,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 852. [2024-11-24 01:47:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 668 states have (on average 1.597305389221557) internal successors, (1067), 676 states have internal predecessors, (1067), 133 states have call successors, (133), 50 states have call predecessors, (133), 50 states have return successors, (148), 128 states have call predecessors, (148), 132 states have call successors, (148) [2024-11-24 01:47:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1348 transitions. [2024-11-24 01:47:34,401 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1348 transitions. Word has length 179 [2024-11-24 01:47:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:34,401 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1348 transitions. [2024-11-24 01:47:34,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1348 transitions. [2024-11-24 01:47:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 01:47:34,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:34,409 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:34,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:47:34,409 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:34,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:34,410 INFO L85 PathProgramCache]: Analyzing trace with hash -841891050, now seen corresponding path program 1 times [2024-11-24 01:47:34,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:34,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676351382] [2024-11-24 01:47:34,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:34,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:47:34,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676351382] [2024-11-24 01:47:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676351382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872200760] [2024-11-24 01:47:34,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:34,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:34,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:34,720 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:47:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:35,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:47:35,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:47:35,325 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:35,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872200760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:35,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:35,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:47:35,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158363098] [2024-11-24 01:47:35,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:35,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:35,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:35,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:35,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:35,328 INFO L87 Difference]: Start difference. First operand 852 states and 1348 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:35,453 INFO L93 Difference]: Finished difference Result 1687 states and 2677 transitions. [2024-11-24 01:47:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2024-11-24 01:47:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:35,462 INFO L225 Difference]: With dead ends: 1687 [2024-11-24 01:47:35,462 INFO L226 Difference]: Without dead ends: 858 [2024-11-24 01:47:35,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:35,466 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 1 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:35,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2454 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:47:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-24 01:47:35,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 854. [2024-11-24 01:47:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 669 states have (on average 1.5964125560538116) internal successors, (1068), 678 states have internal predecessors, (1068), 133 states have call successors, (133), 50 states have call predecessors, (133), 51 states have return successors, (151), 128 states have call predecessors, (151), 132 states have call successors, (151) [2024-11-24 01:47:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1352 transitions. [2024-11-24 01:47:35,534 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1352 transitions. Word has length 182 [2024-11-24 01:47:35,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:35,534 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1352 transitions. [2024-11-24 01:47:35,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1352 transitions. [2024-11-24 01:47:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:47:35,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:35,541 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:35,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:47:35,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:35,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:35,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:35,743 INFO L85 PathProgramCache]: Analyzing trace with hash -23821705, now seen corresponding path program 1 times [2024-11-24 01:47:35,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:35,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269387700] [2024-11-24 01:47:35,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:35,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 01:47:36,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269387700] [2024-11-24 01:47:36,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269387700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:36,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:36,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:47:36,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261561991] [2024-11-24 01:47:36,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:36,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:36,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:36,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:36,010 INFO L87 Difference]: Start difference. First operand 854 states and 1352 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:47:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:36,122 INFO L93 Difference]: Finished difference Result 1677 states and 2663 transitions. [2024-11-24 01:47:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2024-11-24 01:47:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:36,131 INFO L225 Difference]: With dead ends: 1677 [2024-11-24 01:47:36,132 INFO L226 Difference]: Without dead ends: 858 [2024-11-24 01:47:36,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:47:36,137 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 1 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:36,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2460 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:36,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-24 01:47:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2024-11-24 01:47:36,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 671 states have (on average 1.594634873323398) internal successors, (1070), 682 states have internal predecessors, (1070), 133 states have call successors, (133), 50 states have call predecessors, (133), 53 states have return successors, (154), 128 states have call predecessors, (154), 132 states have call successors, (154) [2024-11-24 01:47:36,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1357 transitions. [2024-11-24 01:47:36,206 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1357 transitions. Word has length 165 [2024-11-24 01:47:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:36,208 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1357 transitions. [2024-11-24 01:47:36,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:47:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1357 transitions. [2024-11-24 01:47:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-24 01:47:36,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:36,217 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:36,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:47:36,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:36,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 9762764, now seen corresponding path program 1 times [2024-11-24 01:47:36,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:36,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687190492] [2024-11-24 01:47:36,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 01:47:36,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:36,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687190492] [2024-11-24 01:47:36,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687190492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:36,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557263922] [2024-11-24 01:47:36,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:36,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:36,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:36,501 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:36,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:47:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:36,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:36,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-24 01:47:37,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:37,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557263922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:37,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:37,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:47:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110833118] [2024-11-24 01:47:37,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:37,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:37,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:37,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:37,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:37,015 INFO L87 Difference]: Start difference. First operand 858 states and 1357 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 01:47:37,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:37,088 INFO L93 Difference]: Finished difference Result 1971 states and 3190 transitions. [2024-11-24 01:47:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2024-11-24 01:47:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:37,098 INFO L225 Difference]: With dead ends: 1971 [2024-11-24 01:47:37,098 INFO L226 Difference]: Without dead ends: 1162 [2024-11-24 01:47:37,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:37,103 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 132 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:37,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1252 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-24 01:47:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1152. [2024-11-24 01:47:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 903 states have (on average 1.6234772978959024) internal successors, (1466), 914 states have internal predecessors, (1466), 195 states have call successors, (195), 50 states have call predecessors, (195), 53 states have return successors, (224), 190 states have call predecessors, (224), 194 states have call successors, (224) [2024-11-24 01:47:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1885 transitions. [2024-11-24 01:47:37,185 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1885 transitions. Word has length 166 [2024-11-24 01:47:37,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:37,185 INFO L471 AbstractCegarLoop]: Abstraction has 1152 states and 1885 transitions. [2024-11-24 01:47:37,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 01:47:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1885 transitions. [2024-11-24 01:47:37,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 01:47:37,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:37,196 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:37,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 01:47:37,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:47:37,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:37,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1245097947, now seen corresponding path program 1 times [2024-11-24 01:47:37,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:37,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299164811] [2024-11-24 01:47:37,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:47:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299164811] [2024-11-24 01:47:37,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299164811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762834319] [2024-11-24 01:47:37,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:37,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:37,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:37,613 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:37,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:47:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:38,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:47:38,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:47:38,182 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762834319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:38,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:38,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:47:38,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716845207] [2024-11-24 01:47:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:47:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:38,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:47:38,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:38,187 INFO L87 Difference]: Start difference. First operand 1152 states and 1885 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:38,319 INFO L93 Difference]: Finished difference Result 2267 states and 3725 transitions. [2024-11-24 01:47:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:47:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 184 [2024-11-24 01:47:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:38,329 INFO L225 Difference]: With dead ends: 2267 [2024-11-24 01:47:38,329 INFO L226 Difference]: Without dead ends: 1158 [2024-11-24 01:47:38,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:47:38,335 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 1 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:38,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2439 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:47:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-24 01:47:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2024-11-24 01:47:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 905 states have (on average 1.6220994475138122) internal successors, (1468), 918 states have internal predecessors, (1468), 195 states have call successors, (195), 50 states have call predecessors, (195), 55 states have return successors, (230), 190 states have call predecessors, (230), 194 states have call successors, (230) [2024-11-24 01:47:38,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1893 transitions. [2024-11-24 01:47:38,422 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1893 transitions. Word has length 184 [2024-11-24 01:47:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:38,422 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1893 transitions. [2024-11-24 01:47:38,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 01:47:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1893 transitions. [2024-11-24 01:47:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 01:47:38,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:38,434 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:38,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:47:38,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:47:38,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:38,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:38,636 INFO L85 PathProgramCache]: Analyzing trace with hash -142252975, now seen corresponding path program 1 times [2024-11-24 01:47:38,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:38,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899871860] [2024-11-24 01:47:38,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:38,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:47:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899871860] [2024-11-24 01:47:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899871860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92174431] [2024-11-24 01:47:38,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:38,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:38,829 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:38,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:47:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:39,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:39,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-24 01:47:39,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:47:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-24 01:47:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92174431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:47:39,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:47:39,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2024-11-24 01:47:39,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860408723] [2024-11-24 01:47:39,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:47:39,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:47:39,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:39,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:47:39,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:39,624 INFO L87 Difference]: Start difference. First operand 1156 states and 1893 transitions. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:47:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:40,058 INFO L93 Difference]: Finished difference Result 2923 states and 4890 transitions. [2024-11-24 01:47:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:47:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 185 [2024-11-24 01:47:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:40,078 INFO L225 Difference]: With dead ends: 2923 [2024-11-24 01:47:40,079 INFO L226 Difference]: Without dead ends: 2176 [2024-11-24 01:47:40,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:47:40,149 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 450 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 4261 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:40,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 4261 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:47:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2024-11-24 01:47:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2140. [2024-11-24 01:47:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1705 states have (on average 1.653958944281525) internal successors, (2820), 1703 states have internal predecessors, (2820), 383 states have call successors, (383), 50 states have call predecessors, (383), 51 states have return successors, (445), 389 states have call predecessors, (445), 382 states have call successors, (445) [2024-11-24 01:47:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 3648 transitions. [2024-11-24 01:47:40,299 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 3648 transitions. Word has length 185 [2024-11-24 01:47:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:40,301 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 3648 transitions. [2024-11-24 01:47:40,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:47:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 3648 transitions. [2024-11-24 01:47:40,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:47:40,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:40,320 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:40,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:47:40,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:40,521 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:40,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1327541207, now seen corresponding path program 1 times [2024-11-24 01:47:40,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:40,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046199062] [2024-11-24 01:47:40,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:40,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:47:40,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:40,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046199062] [2024-11-24 01:47:40,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046199062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:40,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:40,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:40,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890345473] [2024-11-24 01:47:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:40,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:40,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:40,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:40,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:40,626 INFO L87 Difference]: Start difference. First operand 2140 states and 3648 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:40,774 INFO L93 Difference]: Finished difference Result 5405 states and 9305 transitions. [2024-11-24 01:47:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-24 01:47:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:40,800 INFO L225 Difference]: With dead ends: 5405 [2024-11-24 01:47:40,800 INFO L226 Difference]: Without dead ends: 3400 [2024-11-24 01:47:40,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:40,810 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 130 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:40,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1248 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2024-11-24 01:47:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3390. [2024-11-24 01:47:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 2717 states have (on average 1.6658078763341921) internal successors, (4526), 2715 states have internal predecessors, (4526), 621 states have call successors, (621), 50 states have call predecessors, (621), 51 states have return successors, (699), 627 states have call predecessors, (699), 620 states have call successors, (699) [2024-11-24 01:47:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 5846 transitions. [2024-11-24 01:47:41,044 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 5846 transitions. Word has length 169 [2024-11-24 01:47:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:41,045 INFO L471 AbstractCegarLoop]: Abstraction has 3390 states and 5846 transitions. [2024-11-24 01:47:41,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 5846 transitions. [2024-11-24 01:47:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 01:47:41,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:41,074 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:41,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:47:41,075 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:41,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2064121027, now seen corresponding path program 1 times [2024-11-24 01:47:41,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:41,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593016328] [2024-11-24 01:47:41,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:47:41,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:41,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593016328] [2024-11-24 01:47:41,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593016328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:41,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:41,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:41,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032477840] [2024-11-24 01:47:41,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:41,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:41,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:41,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:41,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:41,227 INFO L87 Difference]: Start difference. First operand 3390 states and 5846 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:41,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:41,494 INFO L93 Difference]: Finished difference Result 8117 states and 14117 transitions. [2024-11-24 01:47:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 189 [2024-11-24 01:47:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:41,534 INFO L225 Difference]: With dead ends: 8117 [2024-11-24 01:47:41,534 INFO L226 Difference]: Without dead ends: 5096 [2024-11-24 01:47:41,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:41,553 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 128 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:41,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:41,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2024-11-24 01:47:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 5086. [2024-11-24 01:47:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 4128 states have (on average 1.6717538759689923) internal successors, (6901), 4117 states have internal predecessors, (6901), 906 states have call successors, (906), 50 states have call predecessors, (906), 51 states have return successors, (1031), 921 states have call predecessors, (1031), 905 states have call successors, (1031) [2024-11-24 01:47:41,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 8838 transitions. [2024-11-24 01:47:41,872 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 8838 transitions. Word has length 189 [2024-11-24 01:47:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:41,873 INFO L471 AbstractCegarLoop]: Abstraction has 5086 states and 8838 transitions. [2024-11-24 01:47:41,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:41,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 8838 transitions. [2024-11-24 01:47:41,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 01:47:41,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:41,910 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:41,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:47:41,910 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:41,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1623245336, now seen corresponding path program 1 times [2024-11-24 01:47:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:41,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976651993] [2024-11-24 01:47:41,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:47:42,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:42,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976651993] [2024-11-24 01:47:42,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976651993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:42,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:42,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:42,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652738877] [2024-11-24 01:47:42,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:42,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:42,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:42,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:42,023 INFO L87 Difference]: Start difference. First operand 5086 states and 8838 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:42,335 INFO L93 Difference]: Finished difference Result 12323 states and 21587 transitions. [2024-11-24 01:47:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:42,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-24 01:47:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:42,393 INFO L225 Difference]: With dead ends: 12323 [2024-11-24 01:47:42,393 INFO L226 Difference]: Without dead ends: 7890 [2024-11-24 01:47:42,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:42,412 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 126 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:42,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2024-11-24 01:47:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 7880. [2024-11-24 01:47:42,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 6482 states have (on average 1.6771058315334773) internal successors, (10871), 6459 states have internal predecessors, (10871), 1346 states have call successors, (1346), 50 states have call predecessors, (1346), 51 states have return successors, (1550), 1373 states have call predecessors, (1550), 1345 states have call successors, (1550) [2024-11-24 01:47:42,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 13767 transitions. [2024-11-24 01:47:42,859 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 13767 transitions. Word has length 171 [2024-11-24 01:47:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:42,859 INFO L471 AbstractCegarLoop]: Abstraction has 7880 states and 13767 transitions. [2024-11-24 01:47:42,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:47:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 13767 transitions. [2024-11-24 01:47:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:47:42,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:42,998 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:42,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:47:42,999 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:42,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 17643170, now seen corresponding path program 1 times [2024-11-24 01:47:43,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:43,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887376214] [2024-11-24 01:47:43,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:43,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-24 01:47:43,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:43,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887376214] [2024-11-24 01:47:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887376214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:43,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157064739] [2024-11-24 01:47:43,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:43,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:43,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:43,269 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:43,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:47:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:43,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:43,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-24 01:47:43,831 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:43,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157064739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:43,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:43,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:47:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931832749] [2024-11-24 01:47:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:43,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:43,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:43,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:43,833 INFO L87 Difference]: Start difference. First operand 7880 states and 13767 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:47:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:44,302 INFO L93 Difference]: Finished difference Result 19983 states and 35116 transitions. [2024-11-24 01:47:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:44,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 204 [2024-11-24 01:47:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:44,442 INFO L225 Difference]: With dead ends: 19983 [2024-11-24 01:47:44,443 INFO L226 Difference]: Without dead ends: 13060 [2024-11-24 01:47:44,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:44,509 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 122 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:44,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1269 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13060 states. [2024-11-24 01:47:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13060 to 13050. [2024-11-24 01:47:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13050 states, 10742 states have (on average 1.6738037609383727) internal successors, (17980), 10704 states have internal predecessors, (17980), 2256 states have call successors, (2256), 50 states have call predecessors, (2256), 51 states have return successors, (2599), 2298 states have call predecessors, (2599), 2255 states have call successors, (2599) [2024-11-24 01:47:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13050 states to 13050 states and 22835 transitions. [2024-11-24 01:47:45,402 INFO L78 Accepts]: Start accepts. Automaton has 13050 states and 22835 transitions. Word has length 204 [2024-11-24 01:47:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:45,402 INFO L471 AbstractCegarLoop]: Abstraction has 13050 states and 22835 transitions. [2024-11-24 01:47:45,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:47:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 13050 states and 22835 transitions. [2024-11-24 01:47:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 01:47:45,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:45,501 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:45,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:47:45,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:45,702 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:45,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2001130039, now seen corresponding path program 1 times [2024-11-24 01:47:45,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:45,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667438498] [2024-11-24 01:47:45,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:45,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 01:47:46,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667438498] [2024-11-24 01:47:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667438498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872854728] [2024-11-24 01:47:46,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:46,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:46,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:46,083 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:46,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:47:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:46,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:46,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-24 01:47:46,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872854728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:46,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:47:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689135466] [2024-11-24 01:47:46,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:46,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:46,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:46,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:46,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:46,721 INFO L87 Difference]: Start difference. First operand 13050 states and 22835 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:47:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:47,416 INFO L93 Difference]: Finished difference Result 34435 states and 60532 transitions. [2024-11-24 01:47:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:47,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 186 [2024-11-24 01:47:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:47,542 INFO L225 Difference]: With dead ends: 34435 [2024-11-24 01:47:47,543 INFO L226 Difference]: Without dead ends: 22830 [2024-11-24 01:47:47,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:47,594 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 120 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:47,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22830 states. [2024-11-24 01:47:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22830 to 22820. [2024-11-24 01:47:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22820 states, 18868 states have (on average 1.6741573033707866) internal successors, (31588), 18830 states have internal predecessors, (31588), 3900 states have call successors, (3900), 50 states have call predecessors, (3900), 51 states have return successors, (4432), 3942 states have call predecessors, (4432), 3899 states have call successors, (4432) [2024-11-24 01:47:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22820 states to 22820 states and 39920 transitions. [2024-11-24 01:47:48,891 INFO L78 Accepts]: Start accepts. Automaton has 22820 states and 39920 transitions. Word has length 186 [2024-11-24 01:47:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 22820 states and 39920 transitions. [2024-11-24 01:47:48,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:47:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 22820 states and 39920 transitions. [2024-11-24 01:47:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 01:47:48,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:48,995 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:49,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:47:49,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:49,199 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:49,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:49,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2105996037, now seen corresponding path program 1 times [2024-11-24 01:47:49,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:49,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831962646] [2024-11-24 01:47:49,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:49,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:47:49,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831962646] [2024-11-24 01:47:49,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831962646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:49,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:49,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:49,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910940243] [2024-11-24 01:47:49,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:49,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:49,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:49,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:49,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:49,302 INFO L87 Difference]: Start difference. First operand 22820 states and 39920 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:50,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:50,720 INFO L93 Difference]: Finished difference Result 55805 states and 97548 transitions. [2024-11-24 01:47:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:50,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 193 [2024-11-24 01:47:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:50,944 INFO L225 Difference]: With dead ends: 55805 [2024-11-24 01:47:50,944 INFO L226 Difference]: Without dead ends: 36014 [2024-11-24 01:47:51,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:51,022 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 120 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:51,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1220 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36014 states. [2024-11-24 01:47:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36014 to 36004. [2024-11-24 01:47:53,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36004 states, 29721 states have (on average 1.650415531105952) internal successors, (49052), 29665 states have internal predecessors, (49052), 6231 states have call successors, (6231), 50 states have call predecessors, (6231), 51 states have return successors, (7182), 6291 states have call predecessors, (7182), 6230 states have call successors, (7182) [2024-11-24 01:47:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36004 states to 36004 states and 62465 transitions. [2024-11-24 01:47:53,280 INFO L78 Accepts]: Start accepts. Automaton has 36004 states and 62465 transitions. Word has length 193 [2024-11-24 01:47:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:53,281 INFO L471 AbstractCegarLoop]: Abstraction has 36004 states and 62465 transitions. [2024-11-24 01:47:53,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:47:53,281 INFO L276 IsEmpty]: Start isEmpty. Operand 36004 states and 62465 transitions. [2024-11-24 01:47:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 01:47:53,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:53,420 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:53,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:47:53,420 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:53,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash -330737320, now seen corresponding path program 1 times [2024-11-24 01:47:53,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664146371] [2024-11-24 01:47:53,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 01:47:53,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:53,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664146371] [2024-11-24 01:47:53,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664146371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:47:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134975903] [2024-11-24 01:47:53,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:53,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:47:53,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:47:53,705 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:47:53,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:47:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:54,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:47:54,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-24 01:47:54,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:54,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134975903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:54,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:54,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:47:54,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168497088] [2024-11-24 01:47:54,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:54,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:54,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:54,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:54,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:54,555 INFO L87 Difference]: Start difference. First operand 36004 states and 62465 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:47:56,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:56,652 INFO L93 Difference]: Finished difference Result 97252 states and 169326 transitions. [2024-11-24 01:47:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:56,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 188 [2024-11-24 01:47:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:57,070 INFO L225 Difference]: With dead ends: 97252 [2024-11-24 01:47:57,071 INFO L226 Difference]: Without dead ends: 65091 [2024-11-24 01:47:57,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:47:57,188 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 116 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:57,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65091 states. [2024-11-24 01:48:00,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65091 to 65081. [2024-11-24 01:48:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65081 states, 53998 states have (on average 1.6468387718063633) internal successors, (88926), 53921 states have internal predecessors, (88926), 11031 states have call successors, (11031), 50 states have call predecessors, (11031), 51 states have return successors, (12789), 11112 states have call predecessors, (12789), 11030 states have call successors, (12789) [2024-11-24 01:48:00,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65081 states to 65081 states and 112746 transitions. [2024-11-24 01:48:00,763 INFO L78 Accepts]: Start accepts. Automaton has 65081 states and 112746 transitions. Word has length 188 [2024-11-24 01:48:00,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:00,764 INFO L471 AbstractCegarLoop]: Abstraction has 65081 states and 112746 transitions. [2024-11-24 01:48:00,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:48:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 65081 states and 112746 transitions. [2024-11-24 01:48:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 01:48:01,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:01,031 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:01,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:48:01,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:01,232 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:48:01,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:01,232 INFO L85 PathProgramCache]: Analyzing trace with hash -928171104, now seen corresponding path program 1 times [2024-11-24 01:48:01,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:01,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658508377] [2024-11-24 01:48:01,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:01,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:48:01,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:01,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658508377] [2024-11-24 01:48:01,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658508377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:01,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:01,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:01,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236302769] [2024-11-24 01:48:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:01,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:01,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:01,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:01,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:01,365 INFO L87 Difference]: Start difference. First operand 65081 states and 112746 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:48:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:05,052 INFO L93 Difference]: Finished difference Result 180641 states and 313286 transitions. [2024-11-24 01:48:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:05,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2024-11-24 01:48:05,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:05,784 INFO L225 Difference]: With dead ends: 180641 [2024-11-24 01:48:05,784 INFO L226 Difference]: Without dead ends: 121205 [2024-11-24 01:48:05,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:05,996 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 116 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:05,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:48:06,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121205 states. [2024-11-24 01:48:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121205 to 121195. [2024-11-24 01:48:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121195 states, 101092 states have (on average 1.6420191508724726) internal successors, (165995), 101015 states have internal predecessors, (165995), 20051 states have call successors, (20051), 50 states have call predecessors, (20051), 51 states have return successors, (22873), 20132 states have call predecessors, (22873), 20050 states have call successors, (22873) [2024-11-24 01:48:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121195 states to 121195 states and 208919 transitions. [2024-11-24 01:48:11,428 INFO L78 Accepts]: Start accepts. Automaton has 121195 states and 208919 transitions. Word has length 176 [2024-11-24 01:48:11,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:11,429 INFO L471 AbstractCegarLoop]: Abstraction has 121195 states and 208919 transitions. [2024-11-24 01:48:11,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:48:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 121195 states and 208919 transitions. [2024-11-24 01:48:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:48:11,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:11,872 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:11,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:48:11,872 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:48:11,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash -514290344, now seen corresponding path program 1 times [2024-11-24 01:48:11,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:11,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870939808] [2024-11-24 01:48:11,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 01:48:12,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:12,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870939808] [2024-11-24 01:48:12,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870939808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:48:12,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612332557] [2024-11-24 01:48:12,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:12,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:12,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:12,246 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:48:12,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1786ce4e-8d6b-4e13-b4f7-56bb955f88ae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:48:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:12,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:48:12,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:48:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-24 01:48:12,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:48:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612332557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:12,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:48:12,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-24 01:48:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800589069] [2024-11-24 01:48:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:12,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:12,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:12,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:48:12,978 INFO L87 Difference]: Start difference. First operand 121195 states and 208919 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-24 01:48:18,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:18,834 INFO L93 Difference]: Finished difference Result 228344 states and 394395 transitions. [2024-11-24 01:48:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 190 [2024-11-24 01:48:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:20,355 INFO L225 Difference]: With dead ends: 228344 [2024-11-24 01:48:20,355 INFO L226 Difference]: Without dead ends: 228009 [2024-11-24 01:48:20,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:48:20,426 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 109 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:20,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1254 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:48:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228009 states.