./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product35.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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/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 0684811b66680ff9a661ea21879b3502eab6dd1ae141cb77fa167c05dd5b0ff9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:57:57,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:57:57,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:57:57,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:57:57,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:57:57,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:57:57,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:57:57,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:57:57,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:57:57,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:57:57,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:57:57,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:57:57,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:57:57,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:57:57,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:57:57,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:57:57,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:57:57,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:57:57,650 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:57:57,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:57:57,650 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:57:57,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:57:57,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:57:57,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:57:57,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:57:57,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:57:57,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:57:57,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:57:57,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:57:57,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:57:57,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:57:57,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:57:57,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:57:57,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:57:57,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:57:57,654 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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/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 -> 0684811b66680ff9a661ea21879b3502eab6dd1ae141cb77fa167c05dd5b0ff9 [2024-11-23 23:57:58,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:57:58,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:57:58,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:57:58,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:57:58,054 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:57:58,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec4_product35.cil.c [2024-11-23 23:58:01,454 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/data/912dc03ed/a4bcf1b21114498b9f388403537735e9/FLAGb06d5c9d6 [2024-11-23 23:58:02,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:58:02,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/sv-benchmarks/c/product-lines/email_spec4_product35.cil.c [2024-11-23 23:58:02,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/data/912dc03ed/a4bcf1b21114498b9f388403537735e9/FLAGb06d5c9d6 [2024-11-23 23:58:02,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/data/912dc03ed/a4bcf1b21114498b9f388403537735e9 [2024-11-23 23:58:02,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:58:02,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:58:02,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:58:02,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:58:02,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:58:02,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:02" (1/1) ... [2024-11-23 23:58:02,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e95723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:02, skipping insertion in model container [2024-11-23 23:58:02,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:02" (1/1) ... [2024-11-23 23:58:02,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:58:02,468 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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/sv-benchmarks/c/product-lines/email_spec4_product35.cil.c[1542,1555] [2024-11-23 23:58:03,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:58:03,139 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:58:03,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-23 23:58:03,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2024-11-23 23:58:03,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [75] [2024-11-23 23:58:03,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [487] [2024-11-23 23:58:03,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [536] [2024-11-23 23:58:03,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1616] [2024-11-23 23:58:03,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1754] [2024-11-23 23:58:03,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1987] [2024-11-23 23:58:03,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2353] [2024-11-23 23:58:03,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2658] [2024-11-23 23:58:03,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [3092] [2024-11-23 23:58:03,161 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_67add9a9-4031-4fd1-9311-52f5b66fb3c4/sv-benchmarks/c/product-lines/email_spec4_product35.cil.c[1542,1555] [2024-11-23 23:58:03,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:58:03,341 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:58:03,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03 WrapperNode [2024-11-23 23:58:03,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:58:03,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:58:03,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:58:03,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:58:03,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,436 INFO L138 Inliner]: procedures = 137, calls = 227, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1152 [2024-11-23 23:58:03,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:58:03,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:58:03,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:58:03,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:58:03,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,482 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-23 23:58:03,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,514 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:58:03,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:58:03,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:58:03,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:58:03,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (1/1) ... [2024-11-23 23:58:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:58:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:03,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:58:03,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:58:03,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-23 23:58:03,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-23 23:58:03,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-23 23:58:03,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-23 23:58:03,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-23 23:58:03,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-23 23:58:03,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-23 23:58:03,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-23 23:58:03,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-23 23:58:03,687 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-23 23:58:03,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-23 23:58:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-23 23:58:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-23 23:58:03,688 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-23 23:58:03,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-23 23:58:03,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-23 23:58:03,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-23 23:58:03,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-23 23:58:03,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-23 23:58:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-23 23:58:03,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-23 23:58:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-23 23:58:03,692 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-23 23:58:03,693 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-23 23:58:03,693 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-23 23:58:03,693 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-23 23:58:03,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-23 23:58:03,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-23 23:58:03,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-23 23:58:03,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-23 23:58:03,694 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-23 23:58:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-23 23:58:03,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-23 23:58:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:58:03,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:58:03,971 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:58:03,974 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:58:05,840 INFO L? ?]: Removed 608 outVars from TransFormulas that were not future-live. [2024-11-23 23:58:05,841 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:58:05,880 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:58:05,880 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:58:05,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:58:05 BoogieIcfgContainer [2024-11-23 23:58:05,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:58:05,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:58:05,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:58:05,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:58:05,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:58:02" (1/3) ... [2024-11-23 23:58:05,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0c2d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:58:05, skipping insertion in model container [2024-11-23 23:58:05,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:03" (2/3) ... [2024-11-23 23:58:05,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0c2d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:58:05, skipping insertion in model container [2024-11-23 23:58:05,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:58:05" (3/3) ... [2024-11-23 23:58:05,899 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec4_product35.cil.c [2024-11-23 23:58:05,916 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:58:05,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec4_product35.cil.c that has 30 procedures, 465 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:58:06,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:58:06,043 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;@187a99df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:58:06,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:58:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 465 states, 359 states have (on average 1.5376044568245126) internal successors, (552), 364 states have internal predecessors, (552), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 23:58:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 23:58:06,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:06,089 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:06,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:06,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:06,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1085613133, now seen corresponding path program 1 times [2024-11-23 23:58:06,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:06,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657161263] [2024-11-23 23:58:06,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:07,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657161263] [2024-11-23 23:58:07,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657161263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:07,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769198151] [2024-11-23 23:58:07,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:07,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:07,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:07,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:07,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:58:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:07,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:58:07,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 23:58:07,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:58:07,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769198151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:07,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:58:07,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:58:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399036957] [2024-11-23 23:58:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:07,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:07,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:07,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:07,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:58:07,979 INFO L87 Difference]: Start difference. First operand has 465 states, 359 states have (on average 1.5376044568245126) internal successors, (552), 364 states have internal predecessors, (552), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:58:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:08,182 INFO L93 Difference]: Finished difference Result 735 states and 1092 transitions. [2024-11-23 23:58:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:08,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 135 [2024-11-23 23:58:08,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:08,210 INFO L225 Difference]: With dead ends: 735 [2024-11-23 23:58:08,210 INFO L226 Difference]: Without dead ends: 460 [2024-11-23 23:58:08,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:58:08,221 INFO L435 NwaCegarLoop]: 696 mSDtfsCounter, 1 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:08,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1389 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:08,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-23 23:58:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2024-11-23 23:58:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 354 states have (on average 1.5310734463276836) internal successors, (542), 358 states have internal predecessors, (542), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-23 23:58:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 691 transitions. [2024-11-23 23:58:08,325 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 691 transitions. Word has length 135 [2024-11-23 23:58:08,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:08,327 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 691 transitions. [2024-11-23 23:58:08,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:58:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 691 transitions. [2024-11-23 23:58:08,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:58:08,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:08,346 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:08,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:58:08,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:58:08,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:08,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1366757517, now seen corresponding path program 1 times [2024-11-23 23:58:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52022347] [2024-11-23 23:58:08,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:58:09,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52022347] [2024-11-23 23:58:09,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52022347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635823031] [2024-11-23 23:58:09,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:09,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:09,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:09,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:09,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:58:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:09,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:58:09,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:58:09,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:58:09,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635823031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:09,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:58:09,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:58:09,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245381020] [2024-11-23 23:58:09,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:09,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:09,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:09,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:58:09,683 INFO L87 Difference]: Start difference. First operand 459 states and 691 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:09,796 INFO L93 Difference]: Finished difference Result 971 states and 1482 transitions. [2024-11-23 23:58:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:09,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-23 23:58:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:09,810 INFO L225 Difference]: With dead ends: 971 [2024-11-23 23:58:09,810 INFO L226 Difference]: Without dead ends: 538 [2024-11-23 23:58:09,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:58:09,815 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 142 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:09,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1356 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:09,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-23 23:58:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2024-11-23 23:58:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 411 states have (on average 1.5523114355231145) internal successors, (638), 415 states have internal predecessors, (638), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-23 23:58:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 815 transitions. [2024-11-23 23:58:09,918 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 815 transitions. Word has length 124 [2024-11-23 23:58:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:09,919 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 815 transitions. [2024-11-23 23:58:09,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 815 transitions. [2024-11-23 23:58:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:58:09,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:09,927 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:09,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:58:10,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:10,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:10,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1537081987, now seen corresponding path program 1 times [2024-11-23 23:58:10,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:10,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636237342] [2024-11-23 23:58:10,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:10,519 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:58:10,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:10,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636237342] [2024-11-23 23:58:10,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636237342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:10,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712472883] [2024-11-23 23:58:10,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:10,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:10,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:10,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:10,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:58:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:11,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:58:11,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 23:58:11,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:58:11,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712472883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:11,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:58:11,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 23:58:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488929263] [2024-11-23 23:58:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:11,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:58:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:11,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:58:11,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:11,140 INFO L87 Difference]: Start difference. First operand 530 states and 815 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:11,277 INFO L93 Difference]: Finished difference Result 1051 states and 1620 transitions. [2024-11-23 23:58:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:58:11,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-23 23:58:11,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:11,284 INFO L225 Difference]: With dead ends: 1051 [2024-11-23 23:58:11,285 INFO L226 Difference]: Without dead ends: 532 [2024-11-23 23:58:11,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:11,294 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 2 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:11,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2717 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-23 23:58:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-23 23:58:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 412 states have (on average 1.5509708737864079) internal successors, (639), 417 states have internal predecessors, (639), 89 states have call successors, (89), 29 states have call predecessors, (89), 30 states have return successors, (90), 87 states have call predecessors, (90), 88 states have call successors, (90) [2024-11-23 23:58:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 818 transitions. [2024-11-23 23:58:11,342 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 818 transitions. Word has length 125 [2024-11-23 23:58:11,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:11,342 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 818 transitions. [2024-11-23 23:58:11,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:11,343 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 818 transitions. [2024-11-23 23:58:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:58:11,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:11,352 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:11,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:58:11,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:11,553 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:11,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:11,554 INFO L85 PathProgramCache]: Analyzing trace with hash 826636781, now seen corresponding path program 1 times [2024-11-23 23:58:11,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:11,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970490290] [2024-11-23 23:58:11,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:11,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:58:11,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:11,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970490290] [2024-11-23 23:58:11,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970490290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:11,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295366491] [2024-11-23 23:58:11,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:11,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:11,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:58:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:12,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:58:12,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 23:58:12,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:58:12,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295366491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:12,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:58:12,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-23 23:58:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732845200] [2024-11-23 23:58:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:12,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:58:12,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:12,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:58:12,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:58:12,437 INFO L87 Difference]: Start difference. First operand 532 states and 818 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:12,543 INFO L93 Difference]: Finished difference Result 1053 states and 1625 transitions. [2024-11-23 23:58:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:58:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2024-11-23 23:58:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:12,549 INFO L225 Difference]: With dead ends: 1053 [2024-11-23 23:58:12,549 INFO L226 Difference]: Without dead ends: 534 [2024-11-23 23:58:12,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:58:12,552 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 2 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:12,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2703 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-23 23:58:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-23 23:58:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 413 states have (on average 1.549636803874092) internal successors, (640), 419 states have internal predecessors, (640), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (95), 87 states have call predecessors, (95), 88 states have call successors, (95) [2024-11-23 23:58:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 824 transitions. [2024-11-23 23:58:12,600 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 824 transitions. Word has length 126 [2024-11-23 23:58:12,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:12,601 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 824 transitions. [2024-11-23 23:58:12,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 824 transitions. [2024-11-23 23:58:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 23:58:12,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:12,605 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:12,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:58:12,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:12,806 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:12,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash -524810900, now seen corresponding path program 1 times [2024-11-23 23:58:12,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:12,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050395702] [2024-11-23 23:58:12,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:12,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:58:13,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:13,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050395702] [2024-11-23 23:58:13,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050395702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:13,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:13,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:58:13,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407586826] [2024-11-23 23:58:13,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:13,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:58:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:13,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:58:13,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:58:13,110 INFO L87 Difference]: Start difference. First operand 534 states and 824 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:13,196 INFO L93 Difference]: Finished difference Result 1045 states and 1616 transitions. [2024-11-23 23:58:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:58:13,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2024-11-23 23:58:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:13,203 INFO L225 Difference]: With dead ends: 1045 [2024-11-23 23:58:13,203 INFO L226 Difference]: Without dead ends: 534 [2024-11-23 23:58:13,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:58:13,206 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 2 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:13,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2721 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-23 23:58:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-23 23:58:13,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 413 states have (on average 1.549636803874092) internal successors, (640), 419 states have internal predecessors, (640), 89 states have call successors, (89), 29 states have call predecessors, (89), 31 states have return successors, (94), 87 states have call predecessors, (94), 88 states have call successors, (94) [2024-11-23 23:58:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 823 transitions. [2024-11-23 23:58:13,252 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 823 transitions. Word has length 127 [2024-11-23 23:58:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:13,254 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 823 transitions. [2024-11-23 23:58:13,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 823 transitions. [2024-11-23 23:58:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 23:58:13,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:13,258 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:13,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:58:13,260 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2063573626, now seen corresponding path program 2 times [2024-11-23 23:58:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335922480] [2024-11-23 23:58:13,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:58:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:13,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:58:13,312 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:58:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 23:58:13,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:13,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335922480] [2024-11-23 23:58:13,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335922480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:13,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:13,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:58:13,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204643537] [2024-11-23 23:58:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:13,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:58:13,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:13,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:58:13,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:13,510 INFO L87 Difference]: Start difference. First operand 534 states and 823 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:14,363 INFO L93 Difference]: Finished difference Result 907 states and 1435 transitions. [2024-11-23 23:58:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:58:14,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2024-11-23 23:58:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:14,377 INFO L225 Difference]: With dead ends: 907 [2024-11-23 23:58:14,377 INFO L226 Difference]: Without dead ends: 905 [2024-11-23 23:58:14,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:58:14,380 INFO L435 NwaCegarLoop]: 689 mSDtfsCounter, 657 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:14,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 4302 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:58:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-23 23:58:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 897. [2024-11-23 23:58:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 706 states have (on average 1.5920679886685551) internal successors, (1124), 714 states have internal predecessors, (1124), 140 states have call successors, (140), 50 states have call predecessors, (140), 50 states have return successors, (155), 135 states have call predecessors, (155), 139 states have call successors, (155) [2024-11-23 23:58:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1419 transitions. [2024-11-23 23:58:14,451 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1419 transitions. Word has length 128 [2024-11-23 23:58:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:14,452 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1419 transitions. [2024-11-23 23:58:14,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1419 transitions. [2024-11-23 23:58:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 23:58:14,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:14,458 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:14,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:58:14,458 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:14,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:14,459 INFO L85 PathProgramCache]: Analyzing trace with hash -793257477, now seen corresponding path program 1 times [2024-11-23 23:58:14,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:14,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977322733] [2024-11-23 23:58:14,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:14,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:58:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977322733] [2024-11-23 23:58:14,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977322733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:14,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:14,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:58:14,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311211599] [2024-11-23 23:58:14,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:14,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:58:14,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:14,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:58:14,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:58:14,738 INFO L87 Difference]: Start difference. First operand 897 states and 1419 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:14,859 INFO L93 Difference]: Finished difference Result 1773 states and 2811 transitions. [2024-11-23 23:58:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:58:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2024-11-23 23:58:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:14,868 INFO L225 Difference]: With dead ends: 1773 [2024-11-23 23:58:14,869 INFO L226 Difference]: Without dead ends: 899 [2024-11-23 23:58:14,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:58:14,875 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:14,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2724 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-23 23:58:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 899. [2024-11-23 23:58:14,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 707 states have (on average 1.5912305516265912) internal successors, (1125), 716 states have internal predecessors, (1125), 140 states have call successors, (140), 50 states have call predecessors, (140), 51 states have return successors, (157), 135 states have call predecessors, (157), 139 states have call successors, (157) [2024-11-23 23:58:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1422 transitions. [2024-11-23 23:58:14,936 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1422 transitions. Word has length 129 [2024-11-23 23:58:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:14,937 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1422 transitions. [2024-11-23 23:58:14,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:58:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1422 transitions. [2024-11-23 23:58:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 23:58:14,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:14,943 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:14,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:58:14,943 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash 105737636, now seen corresponding path program 1 times [2024-11-23 23:58:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667017155] [2024-11-23 23:58:14,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:58:15,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667017155] [2024-11-23 23:58:15,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667017155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:15,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:15,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:58:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034271659] [2024-11-23 23:58:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:15,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:58:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:15,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:58:15,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:15,223 INFO L87 Difference]: Start difference. First operand 899 states and 1422 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 23:58:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:15,456 INFO L93 Difference]: Finished difference Result 1513 states and 2367 transitions. [2024-11-23 23:58:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:58:15,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 130 [2024-11-23 23:58:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:15,464 INFO L225 Difference]: With dead ends: 1513 [2024-11-23 23:58:15,464 INFO L226 Difference]: Without dead ends: 642 [2024-11-23 23:58:15,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:58:15,469 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 7 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4689 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:15,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4689 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:15,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-23 23:58:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2024-11-23 23:58:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 498 states have (on average 1.5502008032128514) internal successors, (772), 506 states have internal predecessors, (772), 101 states have call successors, (101), 41 states have call predecessors, (101), 42 states have return successors, (109), 97 states have call predecessors, (109), 99 states have call successors, (109) [2024-11-23 23:58:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 982 transitions. [2024-11-23 23:58:15,517 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 982 transitions. Word has length 130 [2024-11-23 23:58:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:15,518 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 982 transitions. [2024-11-23 23:58:15,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-23 23:58:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 982 transitions. [2024-11-23 23:58:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 23:58:15,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:15,522 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:15,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:58:15,522 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:15,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1274165963, now seen corresponding path program 2 times [2024-11-23 23:58:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:15,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103404982] [2024-11-23 23:58:15,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:58:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:15,565 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:58:15,566 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:58:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 23:58:15,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103404982] [2024-11-23 23:58:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103404982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:15,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:15,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:58:15,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570600575] [2024-11-23 23:58:15,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:15,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:58:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:15,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:58:15,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:15,729 INFO L87 Difference]: Start difference. First operand 642 states and 982 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:16,476 INFO L93 Difference]: Finished difference Result 1023 states and 1608 transitions. [2024-11-23 23:58:16,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:58:16,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2024-11-23 23:58:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:16,488 INFO L225 Difference]: With dead ends: 1023 [2024-11-23 23:58:16,488 INFO L226 Difference]: Without dead ends: 1021 [2024-11-23 23:58:16,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:58:16,491 INFO L435 NwaCegarLoop]: 696 mSDtfsCounter, 653 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 4335 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:16,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 4335 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:58:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-23 23:58:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 895. [2024-11-23 23:58:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 706 states have (on average 1.5920679886685551) internal successors, (1124), 714 states have internal predecessors, (1124), 136 states have call successors, (136), 50 states have call predecessors, (136), 52 states have return successors, (157), 133 states have call predecessors, (157), 134 states have call successors, (157) [2024-11-23 23:58:16,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1417 transitions. [2024-11-23 23:58:16,556 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1417 transitions. Word has length 131 [2024-11-23 23:58:16,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:16,556 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1417 transitions. [2024-11-23 23:58:16,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:16,557 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1417 transitions. [2024-11-23 23:58:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:58:16,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:16,562 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-23 23:58:16,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:58:16,563 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:16,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -925097809, now seen corresponding path program 1 times [2024-11-23 23:58:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:16,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219814240] [2024-11-23 23:58:16,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:16,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-23 23:58:16,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:16,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219814240] [2024-11-23 23:58:16,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219814240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:16,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:16,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:58:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282908774] [2024-11-23 23:58:16,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:16,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:58:16,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:16,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:58:16,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:58:16,902 INFO L87 Difference]: Start difference. First operand 895 states and 1417 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 23:58:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:17,140 INFO L93 Difference]: Finished difference Result 1510 states and 2364 transitions. [2024-11-23 23:58:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:58:17,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2024-11-23 23:58:17,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:17,152 INFO L225 Difference]: With dead ends: 1510 [2024-11-23 23:58:17,152 INFO L226 Difference]: Without dead ends: 645 [2024-11-23 23:58:17,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:58:17,157 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 5 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:17,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4703 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-23 23:58:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2024-11-23 23:58:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 500 states have (on average 1.548) internal successors, (774), 509 states have internal predecessors, (774), 101 states have call successors, (101), 41 states have call predecessors, (101), 43 states have return successors, (114), 97 states have call predecessors, (114), 99 states have call successors, (114) [2024-11-23 23:58:17,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 989 transitions. [2024-11-23 23:58:17,200 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 989 transitions. Word has length 151 [2024-11-23 23:58:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:17,200 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 989 transitions. [2024-11-23 23:58:17,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 23:58:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 989 transitions. [2024-11-23 23:58:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 23:58:17,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:17,205 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:17,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:58:17,206 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:17,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:17,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1321167719, now seen corresponding path program 1 times [2024-11-23 23:58:17,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:17,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655174910] [2024-11-23 23:58:17,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:17,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 23:58:17,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:17,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655174910] [2024-11-23 23:58:17,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655174910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:17,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001533632] [2024-11-23 23:58:17,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:17,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:17,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:17,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:17,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:58:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:17,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:58:17,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:18,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:58:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001533632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:58:18,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:58:18,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-23 23:58:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673614554] [2024-11-23 23:58:18,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:58:18,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:58:18,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:18,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:58:18,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:58:18,201 INFO L87 Difference]: Start difference. First operand 645 states and 989 transitions. Second operand has 11 states, 10 states have (on average 15.2) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-23 23:58:19,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:19,359 INFO L93 Difference]: Finished difference Result 1722 states and 2745 transitions. [2024-11-23 23:58:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:58:19,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.2) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 152 [2024-11-23 23:58:19,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:19,369 INFO L225 Difference]: With dead ends: 1722 [2024-11-23 23:58:19,369 INFO L226 Difference]: Without dead ends: 1108 [2024-11-23 23:58:19,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:58:19,374 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 1780 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:19,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 4810 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:58:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-23 23:58:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1084. [2024-11-23 23:58:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 860 states have (on average 1.6) internal successors, (1376), 868 states have internal predecessors, (1376), 180 states have call successors, (180), 42 states have call predecessors, (180), 43 states have return successors, (203), 176 states have call predecessors, (203), 178 states have call successors, (203) [2024-11-23 23:58:19,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1759 transitions. [2024-11-23 23:58:19,457 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1759 transitions. Word has length 152 [2024-11-23 23:58:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:19,457 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1759 transitions. [2024-11-23 23:58:19,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.2) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-23 23:58:19,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1759 transitions. [2024-11-23 23:58:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 23:58:19,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:19,465 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:19,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:58:19,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67add9a9-4031-4fd1-9311-52f5b66fb3c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:58:19,666 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:19,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1684257849, now seen corresponding path program 1 times [2024-11-23 23:58:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:19,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512394104] [2024-11-23 23:58:19,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:19,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512394104] [2024-11-23 23:58:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512394104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:19,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:19,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109628565] [2024-11-23 23:58:19,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:19,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:19,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:19,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:19,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:19,770 INFO L87 Difference]: Start difference. First operand 1084 states and 1759 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:19,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:19,885 INFO L93 Difference]: Finished difference Result 2503 states and 4131 transitions. [2024-11-23 23:58:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-11-23 23:58:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:19,900 INFO L225 Difference]: With dead ends: 2503 [2024-11-23 23:58:19,901 INFO L226 Difference]: Without dead ends: 1500 [2024-11-23 23:58:19,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:19,906 INFO L435 NwaCegarLoop]: 703 mSDtfsCounter, 139 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:19,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1383 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-11-23 23:58:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1492. [2024-11-23 23:58:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1189 states have (on average 1.622371740958789) internal successors, (1929), 1197 states have internal predecessors, (1929), 259 states have call successors, (259), 42 states have call predecessors, (259), 43 states have return successors, (292), 255 states have call predecessors, (292), 257 states have call successors, (292) [2024-11-23 23:58:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2480 transitions. [2024-11-23 23:58:20,012 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2480 transitions. Word has length 137 [2024-11-23 23:58:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:20,013 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 2480 transitions. [2024-11-23 23:58:20,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2480 transitions. [2024-11-23 23:58:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 23:58:20,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:20,023 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:20,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:58:20,023 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:20,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:20,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2133442554, now seen corresponding path program 1 times [2024-11-23 23:58:20,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214347773] [2024-11-23 23:58:20,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:20,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:20,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:20,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214347773] [2024-11-23 23:58:20,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214347773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:20,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:20,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:20,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810708280] [2024-11-23 23:58:20,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:20,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:20,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:20,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:20,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:20,113 INFO L87 Difference]: Start difference. First operand 1492 states and 2480 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:20,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:20,229 INFO L93 Difference]: Finished difference Result 3525 states and 5911 transitions. [2024-11-23 23:58:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2024-11-23 23:58:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:20,268 INFO L225 Difference]: With dead ends: 3525 [2024-11-23 23:58:20,269 INFO L226 Difference]: Without dead ends: 2165 [2024-11-23 23:58:20,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:20,275 INFO L435 NwaCegarLoop]: 690 mSDtfsCounter, 137 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:20,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1372 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:20,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2024-11-23 23:58:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2157. [2024-11-23 23:58:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 1735 states have (on average 1.6363112391930836) internal successors, (2839), 1743 states have internal predecessors, (2839), 378 states have call successors, (378), 42 states have call predecessors, (378), 43 states have return successors, (411), 374 states have call predecessors, (411), 376 states have call successors, (411) [2024-11-23 23:58:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3628 transitions. [2024-11-23 23:58:20,470 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3628 transitions. Word has length 138 [2024-11-23 23:58:20,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:20,471 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 3628 transitions. [2024-11-23 23:58:20,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3628 transitions. [2024-11-23 23:58:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 23:58:20,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:20,491 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:20,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:58:20,491 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:20,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 177760160, now seen corresponding path program 1 times [2024-11-23 23:58:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:20,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318386396] [2024-11-23 23:58:20,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:20,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:20,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:20,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318386396] [2024-11-23 23:58:20,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318386396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:20,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:20,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:20,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230537447] [2024-11-23 23:58:20,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:20,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:20,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:20,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:20,623 INFO L87 Difference]: Start difference. First operand 2157 states and 3628 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, (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) [2024-11-23 23:58:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:20,785 INFO L93 Difference]: Finished difference Result 5082 states and 8628 transitions. [2024-11-23 23:58:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:20,785 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, (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 158 [2024-11-23 23:58:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:20,809 INFO L225 Difference]: With dead ends: 5082 [2024-11-23 23:58:20,810 INFO L226 Difference]: Without dead ends: 3188 [2024-11-23 23:58:20,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:20,819 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 135 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:20,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1367 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:20,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2024-11-23 23:58:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3180. [2024-11-23 23:58:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 2596 states have (on average 1.6475346687211094) internal successors, (4277), 2604 states have internal predecessors, (4277), 540 states have call successors, (540), 42 states have call predecessors, (540), 43 states have return successors, (589), 536 states have call predecessors, (589), 538 states have call successors, (589) [2024-11-23 23:58:21,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 5406 transitions. [2024-11-23 23:58:21,055 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 5406 transitions. Word has length 158 [2024-11-23 23:58:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:21,056 INFO L471 AbstractCegarLoop]: Abstraction has 3180 states and 5406 transitions. [2024-11-23 23:58:21,056 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, (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) [2024-11-23 23:58:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 5406 transitions. [2024-11-23 23:58:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-23 23:58:21,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:21,077 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:21,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:58:21,078 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:21,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1830637422, now seen corresponding path program 1 times [2024-11-23 23:58:21,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:21,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862869892] [2024-11-23 23:58:21,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:21,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:21,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862869892] [2024-11-23 23:58:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862869892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:21,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:21,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:21,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598799355] [2024-11-23 23:58:21,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:21,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:21,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:21,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:21,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:21,189 INFO L87 Difference]: Start difference. First operand 3180 states and 5406 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (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) [2024-11-23 23:58:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:21,459 INFO L93 Difference]: Finished difference Result 7550 states and 12940 transitions. [2024-11-23 23:58:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (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 159 [2024-11-23 23:58:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:21,495 INFO L225 Difference]: With dead ends: 7550 [2024-11-23 23:58:21,495 INFO L226 Difference]: Without dead ends: 4845 [2024-11-23 23:58:21,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:21,509 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 133 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:21,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1367 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2024-11-23 23:58:21,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4837. [2024-11-23 23:58:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4837 states, 4008 states have (on average 1.655688622754491) internal successors, (6636), 4016 states have internal predecessors, (6636), 785 states have call successors, (785), 42 states have call predecessors, (785), 43 states have return successors, (860), 781 states have call predecessors, (860), 783 states have call successors, (860) [2024-11-23 23:58:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4837 states to 4837 states and 8281 transitions. [2024-11-23 23:58:21,900 INFO L78 Accepts]: Start accepts. Automaton has 4837 states and 8281 transitions. Word has length 159 [2024-11-23 23:58:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:21,901 INFO L471 AbstractCegarLoop]: Abstraction has 4837 states and 8281 transitions. [2024-11-23 23:58:21,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (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) [2024-11-23 23:58:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4837 states and 8281 transitions. [2024-11-23 23:58:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 23:58:21,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:21,928 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:21,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:58:21,929 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:21,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1320179196, now seen corresponding path program 1 times [2024-11-23 23:58:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:21,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930006760] [2024-11-23 23:58:21,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:22,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930006760] [2024-11-23 23:58:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930006760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:22,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:22,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:22,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097739515] [2024-11-23 23:58:22,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:22,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:22,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:22,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:22,035 INFO L87 Difference]: Start difference. First operand 4837 states and 8281 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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) [2024-11-23 23:58:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:22,454 INFO L93 Difference]: Finished difference Result 11674 states and 20140 transitions. [2024-11-23 23:58:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:22,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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 160 [2024-11-23 23:58:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:22,546 INFO L225 Difference]: With dead ends: 11674 [2024-11-23 23:58:22,546 INFO L226 Difference]: Without dead ends: 7633 [2024-11-23 23:58:22,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:22,570 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 131 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:22,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2024-11-23 23:58:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7625. [2024-11-23 23:58:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7625 states, 6303 states have (on average 1.6563541170871015) internal successors, (10440), 6311 states have internal predecessors, (10440), 1278 states have call successors, (1278), 42 states have call predecessors, (1278), 43 states have return successors, (1397), 1274 states have call predecessors, (1397), 1276 states have call successors, (1397) [2024-11-23 23:58:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7625 states to 7625 states and 13115 transitions. [2024-11-23 23:58:23,243 INFO L78 Accepts]: Start accepts. Automaton has 7625 states and 13115 transitions. Word has length 160 [2024-11-23 23:58:23,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:23,244 INFO L471 AbstractCegarLoop]: Abstraction has 7625 states and 13115 transitions. [2024-11-23 23:58:23,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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) [2024-11-23 23:58:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 7625 states and 13115 transitions. [2024-11-23 23:58:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 23:58:23,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:23,287 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:23,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:58:23,288 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:23,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:23,291 INFO L85 PathProgramCache]: Analyzing trace with hash 839192309, now seen corresponding path program 1 times [2024-11-23 23:58:23,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:23,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377605146] [2024-11-23 23:58:23,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:23,428 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:23,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:23,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377605146] [2024-11-23 23:58:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377605146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:23,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309572315] [2024-11-23 23:58:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:23,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:23,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:23,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:23,431 INFO L87 Difference]: Start difference. First operand 7625 states and 13115 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:23,910 INFO L93 Difference]: Finished difference Result 19156 states and 33172 transitions. [2024-11-23 23:58:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:23,910 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2024-11-23 23:58:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:23,985 INFO L225 Difference]: With dead ends: 19156 [2024-11-23 23:58:23,986 INFO L226 Difference]: Without dead ends: 12713 [2024-11-23 23:58:24,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:24,019 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 129 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:24,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1380 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12713 states. [2024-11-23 23:58:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12713 to 12705. [2024-11-23 23:58:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12705 states, 10561 states have (on average 1.657892245052552) internal successors, (17509), 10569 states have internal predecessors, (17509), 2100 states have call successors, (2100), 42 states have call predecessors, (2100), 43 states have return successors, (2297), 2096 states have call predecessors, (2297), 2098 states have call successors, (2297) [2024-11-23 23:58:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12705 states to 12705 states and 21906 transitions. [2024-11-23 23:58:24,975 INFO L78 Accepts]: Start accepts. Automaton has 12705 states and 21906 transitions. Word has length 142 [2024-11-23 23:58:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:24,976 INFO L471 AbstractCegarLoop]: Abstraction has 12705 states and 21906 transitions. [2024-11-23 23:58:24,976 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 12705 states and 21906 transitions. [2024-11-23 23:58:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:58:25,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:25,032 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:25,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:58:25,033 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:25,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash 338679841, now seen corresponding path program 1 times [2024-11-23 23:58:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:25,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834191084] [2024-11-23 23:58:25,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:25,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:25,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834191084] [2024-11-23 23:58:25,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834191084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:25,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:25,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:25,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771934665] [2024-11-23 23:58:25,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:25,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:25,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:25,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:25,127 INFO L87 Difference]: Start difference. First operand 12705 states and 21906 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:26,096 INFO L93 Difference]: Finished difference Result 30401 states and 52353 transitions. [2024-11-23 23:58:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:26,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2024-11-23 23:58:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:26,229 INFO L225 Difference]: With dead ends: 30401 [2024-11-23 23:58:26,230 INFO L226 Difference]: Without dead ends: 19860 [2024-11-23 23:58:26,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:26,284 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 127 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:26,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1342 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:26,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2024-11-23 23:58:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19852. [2024-11-23 23:58:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19852 states, 16505 states have (on average 1.6352014541048168) internal successors, (26989), 16513 states have internal predecessors, (26989), 3303 states have call successors, (3303), 42 states have call predecessors, (3303), 43 states have return successors, (3644), 3299 states have call predecessors, (3644), 3301 states have call successors, (3644) [2024-11-23 23:58:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19852 states to 19852 states and 33936 transitions. [2024-11-23 23:58:27,978 INFO L78 Accepts]: Start accepts. Automaton has 19852 states and 33936 transitions. Word has length 143 [2024-11-23 23:58:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:27,978 INFO L471 AbstractCegarLoop]: Abstraction has 19852 states and 33936 transitions. [2024-11-23 23:58:27,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 19852 states and 33936 transitions. [2024-11-23 23:58:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 23:58:28,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:28,190 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:28,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:58:28,190 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:28,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash -403845132, now seen corresponding path program 1 times [2024-11-23 23:58:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938336172] [2024-11-23 23:58:28,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938336172] [2024-11-23 23:58:28,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938336172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:28,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788153348] [2024-11-23 23:58:28,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:28,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:28,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:28,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:28,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:28,286 INFO L87 Difference]: Start difference. First operand 19852 states and 33936 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:29,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:29,436 INFO L93 Difference]: Finished difference Result 52403 states and 89907 transitions. [2024-11-23 23:58:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:29,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2024-11-23 23:58:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:29,650 INFO L225 Difference]: With dead ends: 52403 [2024-11-23 23:58:29,651 INFO L226 Difference]: Without dead ends: 35363 [2024-11-23 23:58:29,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:29,716 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 125 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:29,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1370 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:29,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35363 states. [2024-11-23 23:58:32,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35363 to 35355. [2024-11-23 23:58:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35355 states, 29558 states have (on average 1.6323161242303268) internal successors, (48248), 29566 states have internal predecessors, (48248), 5753 states have call successors, (5753), 42 states have call predecessors, (5753), 43 states have return successors, (6368), 5749 states have call predecessors, (6368), 5751 states have call successors, (6368) [2024-11-23 23:58:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35355 states to 35355 states and 60369 transitions. [2024-11-23 23:58:32,289 INFO L78 Accepts]: Start accepts. Automaton has 35355 states and 60369 transitions. Word has length 144 [2024-11-23 23:58:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:32,290 INFO L471 AbstractCegarLoop]: Abstraction has 35355 states and 60369 transitions. [2024-11-23 23:58:32,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:58:32,290 INFO L276 IsEmpty]: Start isEmpty. Operand 35355 states and 60369 transitions. [2024-11-23 23:58:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:58:32,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:32,371 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:32,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:58:32,372 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:32,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:32,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1670934204, now seen corresponding path program 1 times [2024-11-23 23:58:32,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:32,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226922378] [2024-11-23 23:58:32,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:32,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:32,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:32,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226922378] [2024-11-23 23:58:32,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226922378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:32,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:32,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099126332] [2024-11-23 23:58:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:32,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:32,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:32,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:32,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:32,477 INFO L87 Difference]: Start difference. First operand 35355 states and 60369 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (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) [2024-11-23 23:58:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:35,231 INFO L93 Difference]: Finished difference Result 96415 states and 165099 transitions. [2024-11-23 23:58:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:35,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (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 164 [2024-11-23 23:58:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:35,603 INFO L225 Difference]: With dead ends: 96415 [2024-11-23 23:58:35,604 INFO L226 Difference]: Without dead ends: 64791 [2024-11-23 23:58:35,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:35,702 INFO L435 NwaCegarLoop]: 691 mSDtfsCounter, 123 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:35,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1373 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64791 states. [2024-11-23 23:58:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64791 to 64783. [2024-11-23 23:58:39,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64783 states, 54473 states have (on average 1.6281827694454134) internal successors, (88692), 54481 states have internal predecessors, (88692), 10266 states have call successors, (10266), 42 states have call predecessors, (10266), 43 states have return successors, (11413), 10262 states have call predecessors, (11413), 10264 states have call successors, (11413) [2024-11-23 23:58:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64783 states to 64783 states and 110371 transitions. [2024-11-23 23:58:39,734 INFO L78 Accepts]: Start accepts. Automaton has 64783 states and 110371 transitions. Word has length 164 [2024-11-23 23:58:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:39,734 INFO L471 AbstractCegarLoop]: Abstraction has 64783 states and 110371 transitions. [2024-11-23 23:58:39,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (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) [2024-11-23 23:58:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 64783 states and 110371 transitions. [2024-11-23 23:58:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-23 23:58:39,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:39,817 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:39,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:58:39,817 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:39,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1565224663, now seen corresponding path program 1 times [2024-11-23 23:58:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491983658] [2024-11-23 23:58:39,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:58:39,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491983658] [2024-11-23 23:58:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491983658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:39,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47214304] [2024-11-23 23:58:39,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:39,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:39,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:39,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:39,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:39,919 INFO L87 Difference]: Start difference. First operand 64783 states and 110371 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) [2024-11-23 23:58:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:43,693 INFO L93 Difference]: Finished difference Result 121557 states and 207444 transitions. [2024-11-23 23:58:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:43,694 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 165 [2024-11-23 23:58:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:44,335 INFO L225 Difference]: With dead ends: 121557 [2024-11-23 23:58:44,335 INFO L226 Difference]: Without dead ends: 121191 [2024-11-23 23:58:44,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:44,382 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 118 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:44,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1384 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121191 states. [2024-11-23 23:58:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121191 to 121183. [2024-11-23 23:58:48,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121183 states, 102505 states have (on average 1.6229061996975758) internal successors, (166356), 102513 states have internal predecessors, (166356), 18634 states have call successors, (18634), 42 states have call predecessors, (18634), 43 states have return successors, (20827), 18630 states have call predecessors, (20827), 18632 states have call successors, (20827) [2024-11-23 23:58:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121183 states to 121183 states and 205817 transitions. [2024-11-23 23:58:49,885 INFO L78 Accepts]: Start accepts. Automaton has 121183 states and 205817 transitions. Word has length 165 [2024-11-23 23:58:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:49,886 INFO L471 AbstractCegarLoop]: Abstraction has 121183 states and 205817 transitions. [2024-11-23 23:58:49,886 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) [2024-11-23 23:58:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 121183 states and 205817 transitions. [2024-11-23 23:58:49,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 23:58:49,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:49,997 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:49,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:58:49,997 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:49,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:49,998 INFO L85 PathProgramCache]: Analyzing trace with hash -929424088, now seen corresponding path program 1 times [2024-11-23 23:58:49,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:49,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778421377] [2024-11-23 23:58:49,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:50,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-23 23:58:50,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:50,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778421377] [2024-11-23 23:58:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778421377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:58:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367668316] [2024-11-23 23:58:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:50,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:58:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:50,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:58:50,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:58:50,619 INFO L87 Difference]: Start difference. First operand 121183 states and 205817 transitions. Second operand has 14 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 6 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-23 23:59:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:00,524 INFO L93 Difference]: Finished difference Result 241918 states and 416250 transitions. [2024-11-23 23:59:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 23:59:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 6 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 147 [2024-11-23 23:59:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:02,047 INFO L225 Difference]: With dead ends: 241918 [2024-11-23 23:59:02,047 INFO L226 Difference]: Without dead ends: 241635 [2024-11-23 23:59:02,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:59:02,156 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 2104 mSDsluCounter, 8246 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 9029 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:02,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 9029 Invalid, 2642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [719 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:59:02,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241635 states.