./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB --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 c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:04:04,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:04:04,944 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:04:04,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:04:04,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:04:04,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:04:04,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:04:04,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:04:04,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:04:04,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:04:04,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:04:04,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:04:04,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:04:04,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:04:04,996 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:04:04,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:04:04,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:04:04,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:04:04,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:04:04,998 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:04:04,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:04:04,998 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:04:04,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:04,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:04,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:04,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:05,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:04:05,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:04:05,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:04:05,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:04:05,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:04:05,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:04:05,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:04:05,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:04:05,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:04:05,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:04:05,001 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_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c86855dab8667fe80df418e2dda62d52081f1a657b6492a63fb3d2a1da4890b5 [2024-11-28 05:04:05,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:04:05,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:04:05,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:04:05,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:04:05,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:04:05,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2024-11-28 05:04:08,369 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/data/973945cfe/a21955acc43b477a9f3e35a0905b6f1a/FLAGfe5c2c2b7 [2024-11-28 05:04:08,878 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:04:08,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2024-11-28 05:04:08,917 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/data/973945cfe/a21955acc43b477a9f3e35a0905b6f1a/FLAGfe5c2c2b7 [2024-11-28 05:04:08,945 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/data/973945cfe/a21955acc43b477a9f3e35a0905b6f1a [2024-11-28 05:04:08,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:04:08,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:04:08,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:08,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:04:08,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:04:08,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202c5418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08, skipping insertion in model container [2024-11-28 05:04:08,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:09,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:04:09,383 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_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2024-11-28 05:04:09,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:09,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:04:09,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [48] [2024-11-28 05:04:09,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [111] [2024-11-28 05:04:09,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [477] [2024-11-28 05:04:09,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [692] [2024-11-28 05:04:09,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [701] [2024-11-28 05:04:09,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [811] [2024-11-28 05:04:09,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1890] [2024-11-28 05:04:09,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1907] [2024-11-28 05:04:09,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2184] [2024-11-28 05:04:09,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2539] [2024-11-28 05:04:09,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2941] [2024-11-28 05:04:09,890 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_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[17001,17014] [2024-11-28 05:04:09,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:10,031 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:04:10,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10 WrapperNode [2024-11-28 05:04:10,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:10,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:10,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:04:10,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:04:10,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,143 INFO L138 Inliner]: procedures = 152, calls = 268, calls flagged for inlining = 68, calls inlined = 65, statements flattened = 1343 [2024-11-28 05:04:10,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:10,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:04:10,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:04:10,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:04:10,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,233 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]. [2024-11-28 05:04:10,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,255 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:04:10,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:04:10,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:04:10,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:04:10,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (1/1) ... [2024-11-28 05:04:10,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:10,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:04:10,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:04:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-28 05:04:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-28 05:04:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-11-28 05:04:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-11-28 05:04:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-11-28 05:04:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-11-28 05:04:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-28 05:04:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-28 05:04:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-28 05:04:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-28 05:04:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-28 05:04:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-28 05:04:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-28 05:04:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-28 05:04:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-11-28 05:04:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-11-28 05:04:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-28 05:04:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-28 05:04:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-11-28 05:04:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-11-28 05:04:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-28 05:04:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-28 05:04:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-28 05:04:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-28 05:04:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-28 05:04:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-28 05:04:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-11-28 05:04:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-11-28 05:04:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-11-28 05:04:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-11-28 05:04:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-28 05:04:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-28 05:04:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-28 05:04:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-28 05:04:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-28 05:04:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-28 05:04:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-11-28 05:04:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-11-28 05:04:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-28 05:04:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-28 05:04:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-28 05:04:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-28 05:04:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-28 05:04:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-11-28 05:04:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-28 05:04:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-28 05:04:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-11-28 05:04:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-11-28 05:04:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-11-28 05:04:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-11-28 05:04:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-11-28 05:04:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-28 05:04:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-28 05:04:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-28 05:04:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-28 05:04:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-28 05:04:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-28 05:04:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-28 05:04:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-28 05:04:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-28 05:04:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-28 05:04:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-28 05:04:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-28 05:04:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-28 05:04:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-28 05:04:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-11-28 05:04:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-11-28 05:04:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-11-28 05:04:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-11-28 05:04:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-28 05:04:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-28 05:04:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:04:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:04:10,636 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:04:10,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:04:12,366 INFO L? ?]: Removed 631 outVars from TransFormulas that were not future-live. [2024-11-28 05:04:12,366 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:04:12,405 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:04:12,405 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:04:12,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:12 BoogieIcfgContainer [2024-11-28 05:04:12,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:04:12,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:04:12,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:04:12,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:04:12,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:04:08" (1/3) ... [2024-11-28 05:04:12,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aad58e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:12, skipping insertion in model container [2024-11-28 05:04:12,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:10" (2/3) ... [2024-11-28 05:04:12,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aad58e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:12, skipping insertion in model container [2024-11-28 05:04:12,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:12" (3/3) ... [2024-11-28 05:04:12,428 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2024-11-28 05:04:12,451 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:04:12,456 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec6_productSimulator.cil.c that has 44 procedures, 607 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:04:12,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:04:12,583 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;@796e5034, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:04:12,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:04:12,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 607 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-28 05:04:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 05:04:12,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:12,634 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:12,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:12,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:12,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1906351391, now seen corresponding path program 1 times [2024-11-28 05:04:12,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:12,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141192007] [2024-11-28 05:04:12,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 05:04:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141192007] [2024-11-28 05:04:13,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141192007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:13,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:04:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539423277] [2024-11-28 05:04:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:13,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:04:13,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:13,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:04:13,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:04:13,281 INFO L87 Difference]: Start difference. First operand has 607 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 05:04:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:13,420 INFO L93 Difference]: Finished difference Result 946 states and 1390 transitions. [2024-11-28 05:04:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:04:13,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2024-11-28 05:04:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:13,456 INFO L225 Difference]: With dead ends: 946 [2024-11-28 05:04:13,456 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 05:04:13,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:04:13,474 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:13,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 05:04:13,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2024-11-28 05:04:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 444 states have (on average 1.509009009009009) internal successors, (670), 463 states have internal predecessors, (670), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-28 05:04:13,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 893 transitions. [2024-11-28 05:04:13,630 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 893 transitions. Word has length 152 [2024-11-28 05:04:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:13,634 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 893 transitions. [2024-11-28 05:04:13,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 05:04:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 893 transitions. [2024-11-28 05:04:13,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 05:04:13,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:13,650 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:04:13,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:13,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1958531082, now seen corresponding path program 1 times [2024-11-28 05:04:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828725347] [2024-11-28 05:04:13,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 05:04:14,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828725347] [2024-11-28 05:04:14,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828725347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:04:14,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075612635] [2024-11-28 05:04:14,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:14,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:04:14,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:14,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:04:14,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:04:14,375 INFO L87 Difference]: Start difference. First operand 600 states and 893 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 05:04:14,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:14,585 INFO L93 Difference]: Finished difference Result 1164 states and 1730 transitions. [2024-11-28 05:04:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:04:14,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 173 [2024-11-28 05:04:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:14,591 INFO L225 Difference]: With dead ends: 1164 [2024-11-28 05:04:14,591 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 05:04:14,593 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 [2024-11-28 05:04:14,594 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 0 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:14,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3552 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 05:04:14,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2024-11-28 05:04:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 444 states have (on average 1.4932432432432432) internal successors, (663), 463 states have internal predecessors, (663), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-28 05:04:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 886 transitions. [2024-11-28 05:04:14,657 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 886 transitions. Word has length 173 [2024-11-28 05:04:14,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:14,659 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 886 transitions. [2024-11-28 05:04:14,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-28 05:04:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 886 transitions. [2024-11-28 05:04:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 05:04:14,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:14,664 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:14,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:04:14,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:14,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1156809878, now seen corresponding path program 1 times [2024-11-28 05:04:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467196484] [2024-11-28 05:04:14,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:14,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 05:04:14,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467196484] [2024-11-28 05:04:14,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467196484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:14,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:14,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:14,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177653753] [2024-11-28 05:04:14,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:14,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:14,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:14,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:14,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:14,918 INFO L87 Difference]: Start difference. First operand 600 states and 886 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 05:04:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:15,037 INFO L93 Difference]: Finished difference Result 1174 states and 1754 transitions. [2024-11-28 05:04:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 157 [2024-11-28 05:04:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:15,042 INFO L225 Difference]: With dead ends: 1174 [2024-11-28 05:04:15,042 INFO L226 Difference]: Without dead ends: 599 [2024-11-28 05:04:15,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:15,045 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 852 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:15,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 879 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-28 05:04:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2024-11-28 05:04:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 445 states have (on average 1.4808988764044944) internal successors, (659), 462 states have internal predecessors, (659), 109 states have call successors, (109), 44 states have call predecessors, (109), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 05:04:15,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 876 transitions. [2024-11-28 05:04:15,086 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 876 transitions. Word has length 157 [2024-11-28 05:04:15,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:15,087 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 876 transitions. [2024-11-28 05:04:15,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 05:04:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 876 transitions. [2024-11-28 05:04:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 05:04:15,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:15,092 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:15,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:04:15,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:15,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:15,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1069013108, now seen corresponding path program 1 times [2024-11-28 05:04:15,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:15,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039521215] [2024-11-28 05:04:15,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:15,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 05:04:15,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:15,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039521215] [2024-11-28 05:04:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039521215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:15,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:15,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711805118] [2024-11-28 05:04:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:15,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:15,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:15,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:15,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:15,287 INFO L87 Difference]: Start difference. First operand 599 states and 876 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 05:04:15,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:15,366 INFO L93 Difference]: Finished difference Result 1167 states and 1722 transitions. [2024-11-28 05:04:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:15,367 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 173 [2024-11-28 05:04:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:15,375 INFO L225 Difference]: With dead ends: 1167 [2024-11-28 05:04:15,375 INFO L226 Difference]: Without dead ends: 598 [2024-11-28 05:04:15,378 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 [2024-11-28 05:04:15,380 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 838 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:15,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 897 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-28 05:04:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2024-11-28 05:04:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 445 states have (on average 1.4764044943820225) internal successors, (657), 461 states have internal predecessors, (657), 108 states have call successors, (108), 44 states have call predecessors, (108), 44 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 05:04:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 872 transitions. [2024-11-28 05:04:15,455 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 872 transitions. Word has length 173 [2024-11-28 05:04:15,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:15,457 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 872 transitions. [2024-11-28 05:04:15,458 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 05:04:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 872 transitions. [2024-11-28 05:04:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 05:04:15,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:15,464 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:15,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:04:15,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:15,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash -974781130, now seen corresponding path program 1 times [2024-11-28 05:04:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874695974] [2024-11-28 05:04:15,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 05:04:15,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:15,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874695974] [2024-11-28 05:04:15,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874695974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:15,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:15,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:15,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57151199] [2024-11-28 05:04:15,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:15,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:15,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:15,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:15,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:15,657 INFO L87 Difference]: Start difference. First operand 598 states and 872 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 05:04:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:15,766 INFO L93 Difference]: Finished difference Result 1147 states and 1680 transitions. [2024-11-28 05:04:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:15,767 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 174 [2024-11-28 05:04:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:15,773 INFO L225 Difference]: With dead ends: 1147 [2024-11-28 05:04:15,773 INFO L226 Difference]: Without dead ends: 595 [2024-11-28 05:04:15,775 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 [2024-11-28 05:04:15,778 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 810 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:15,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 874 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:15,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-28 05:04:15,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-28 05:04:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 445 states have (on average 1.451685393258427) internal successors, (646), 456 states have internal predecessors, (646), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 05:04:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 855 transitions. [2024-11-28 05:04:15,882 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 855 transitions. Word has length 174 [2024-11-28 05:04:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:15,882 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 855 transitions. [2024-11-28 05:04:15,883 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 05:04:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 855 transitions. [2024-11-28 05:04:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 05:04:15,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:15,888 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:15,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:04:15,888 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:15,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1055844412, now seen corresponding path program 1 times [2024-11-28 05:04:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:15,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804069386] [2024-11-28 05:04:15,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:15,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-28 05:04:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804069386] [2024-11-28 05:04:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804069386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190449168] [2024-11-28 05:04:16,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:16,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:16,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:16,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:04:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:17,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:04:17,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 05:04:17,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190449168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:17,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:17,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-28 05:04:17,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919791365] [2024-11-28 05:04:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:17,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:17,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:17,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:17,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:17,099 INFO L87 Difference]: Start difference. First operand 595 states and 855 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:17,188 INFO L93 Difference]: Finished difference Result 925 states and 1311 transitions. [2024-11-28 05:04:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:17,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 199 [2024-11-28 05:04:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:17,196 INFO L225 Difference]: With dead ends: 925 [2024-11-28 05:04:17,197 INFO L226 Difference]: Without dead ends: 597 [2024-11-28 05:04:17,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:17,200 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 1 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:17,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1700 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-28 05:04:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 596. [2024-11-28 05:04:17,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 446 states have (on average 1.4506726457399104) internal successors, (647), 457 states have internal predecessors, (647), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 05:04:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 856 transitions. [2024-11-28 05:04:17,315 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 856 transitions. Word has length 199 [2024-11-28 05:04:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:17,319 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 856 transitions. [2024-11-28 05:04:17,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 856 transitions. [2024-11-28 05:04:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 05:04:17,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:17,324 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:17,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:04:17,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:17,529 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:17,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1675225002, now seen corresponding path program 1 times [2024-11-28 05:04:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:17,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387130262] [2024-11-28 05:04:17,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 05:04:18,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387130262] [2024-11-28 05:04:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387130262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210552462] [2024-11-28 05:04:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:18,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:18,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:18,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:18,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:04:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:18,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:04:18,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 05:04:18,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:18,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210552462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:18,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:18,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-28 05:04:18,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115811792] [2024-11-28 05:04:18,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:18,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:18,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:18,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:18,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:18,633 INFO L87 Difference]: Start difference. First operand 596 states and 856 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:18,713 INFO L93 Difference]: Finished difference Result 1212 states and 1773 transitions. [2024-11-28 05:04:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 206 [2024-11-28 05:04:18,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:18,720 INFO L225 Difference]: With dead ends: 1212 [2024-11-28 05:04:18,720 INFO L226 Difference]: Without dead ends: 693 [2024-11-28 05:04:18,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:18,723 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 165 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1668 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 [2024-11-28 05:04:18,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1668 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-28 05:04:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 685. [2024-11-28 05:04:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 521 states have (on average 1.4664107485604607) internal successors, (764), 532 states have internal predecessors, (764), 119 states have call successors, (119), 44 states have call predecessors, (119), 44 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 05:04:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1001 transitions. [2024-11-28 05:04:18,835 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1001 transitions. Word has length 206 [2024-11-28 05:04:18,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:18,836 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1001 transitions. [2024-11-28 05:04:18,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1001 transitions. [2024-11-28 05:04:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 05:04:18,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:18,841 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:18,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:04:19,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:19,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:19,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1779747094, now seen corresponding path program 1 times [2024-11-28 05:04:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:19,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133312059] [2024-11-28 05:04:19,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 05:04:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133312059] [2024-11-28 05:04:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133312059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22668558] [2024-11-28 05:04:19,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:19,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:19,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:19,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:04:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:20,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:04:20,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 05:04:20,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:20,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22668558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:20,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:20,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-28 05:04:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243368285] [2024-11-28 05:04:20,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:20,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:04:20,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:20,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:04:20,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:04:20,251 INFO L87 Difference]: Start difference. First operand 685 states and 1001 transitions. Second operand has 8 states, 6 states have (on average 20.5) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:20,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:20,523 INFO L93 Difference]: Finished difference Result 1317 states and 1939 transitions. [2024-11-28 05:04:20,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:04:20,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.5) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 207 [2024-11-28 05:04:20,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:20,531 INFO L225 Difference]: With dead ends: 1317 [2024-11-28 05:04:20,531 INFO L226 Difference]: Without dead ends: 687 [2024-11-28 05:04:20,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:04:20,536 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 4 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:20,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5877 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-28 05:04:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-28 05:04:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 522 states have (on average 1.4655172413793103) internal successors, (765), 534 states have internal predecessors, (765), 119 states have call successors, (119), 44 states have call predecessors, (119), 45 states have return successors, (120), 117 states have call predecessors, (120), 118 states have call successors, (120) [2024-11-28 05:04:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1004 transitions. [2024-11-28 05:04:20,622 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1004 transitions. Word has length 207 [2024-11-28 05:04:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:20,624 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1004 transitions. [2024-11-28 05:04:20,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.5) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1004 transitions. [2024-11-28 05:04:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-28 05:04:20,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:20,630 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:20,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:04:20,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 05:04:20,835 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:20,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:20,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1760430100, now seen corresponding path program 1 times [2024-11-28 05:04:20,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:20,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662565179] [2024-11-28 05:04:20,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:20,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 05:04:21,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:21,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662565179] [2024-11-28 05:04:21,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662565179] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:21,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713453609] [2024-11-28 05:04:21,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:21,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:21,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:21,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:21,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:04:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:21,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:04:21,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 05:04:21,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713453609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:21,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:21,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-28 05:04:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904947074] [2024-11-28 05:04:21,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:21,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:21,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:21,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:21,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:04:21,957 INFO L87 Difference]: Start difference. First operand 687 states and 1004 transitions. Second operand has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 05:04:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:22,120 INFO L93 Difference]: Finished difference Result 1318 states and 1943 transitions. [2024-11-28 05:04:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:22,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 208 [2024-11-28 05:04:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:22,129 INFO L225 Difference]: With dead ends: 1318 [2024-11-28 05:04:22,129 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 05:04:22,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:04:22,133 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 2 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:22,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4193 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 05:04:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-28 05:04:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 536 states have internal predecessors, (766), 119 states have call successors, (119), 44 states have call predecessors, (119), 46 states have return successors, (125), 117 states have call predecessors, (125), 118 states have call successors, (125) [2024-11-28 05:04:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1010 transitions. [2024-11-28 05:04:22,196 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1010 transitions. Word has length 208 [2024-11-28 05:04:22,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:22,197 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1010 transitions. [2024-11-28 05:04:22,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-28 05:04:22,198 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1010 transitions. [2024-11-28 05:04:22,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 05:04:22,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:22,203 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:22,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:04:22,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:22,404 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:22,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:22,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1069491625, now seen corresponding path program 1 times [2024-11-28 05:04:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:22,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131418649] [2024-11-28 05:04:22,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 05:04:22,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:22,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131418649] [2024-11-28 05:04:22,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131418649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:22,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:22,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:04:22,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394388292] [2024-11-28 05:04:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:22,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:04:22,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:22,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:04:22,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:04:22,863 INFO L87 Difference]: Start difference. First operand 689 states and 1010 transitions. Second operand has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 05:04:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:23,064 INFO L93 Difference]: Finished difference Result 1306 states and 1930 transitions. [2024-11-28 05:04:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:04:23,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 202 [2024-11-28 05:04:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:23,070 INFO L225 Difference]: With dead ends: 1306 [2024-11-28 05:04:23,070 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 05:04:23,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:23,073 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 4 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:23,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5884 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:23,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 05:04:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-28 05:04:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 536 states have internal predecessors, (766), 119 states have call successors, (119), 44 states have call predecessors, (119), 46 states have return successors, (124), 117 states have call predecessors, (124), 118 states have call successors, (124) [2024-11-28 05:04:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1009 transitions. [2024-11-28 05:04:23,133 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1009 transitions. Word has length 202 [2024-11-28 05:04:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:23,134 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1009 transitions. [2024-11-28 05:04:23,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 05:04:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1009 transitions. [2024-11-28 05:04:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 05:04:23,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:23,139 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:23,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:04:23,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:23,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:23,140 INFO L85 PathProgramCache]: Analyzing trace with hash 630987985, now seen corresponding path program 2 times [2024-11-28 05:04:23,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:23,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124214176] [2024-11-28 05:04:23,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:04:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:23,207 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:04:23,207 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 05:04:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:23,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124214176] [2024-11-28 05:04:23,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124214176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:23,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:23,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110227477] [2024-11-28 05:04:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:23,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:23,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:23,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:23,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:23,505 INFO L87 Difference]: Start difference. First operand 689 states and 1009 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 05:04:23,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:23,645 INFO L93 Difference]: Finished difference Result 1303 states and 1924 transitions. [2024-11-28 05:04:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:23,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 203 [2024-11-28 05:04:23,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:23,653 INFO L225 Difference]: With dead ends: 1303 [2024-11-28 05:04:23,653 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 05:04:23,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:23,656 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 2 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:23,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4198 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 05:04:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-28 05:04:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 536 states have internal predecessors, (766), 119 states have call successors, (119), 44 states have call predecessors, (119), 46 states have return successors, (123), 117 states have call predecessors, (123), 118 states have call successors, (123) [2024-11-28 05:04:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1008 transitions. [2024-11-28 05:04:23,716 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1008 transitions. Word has length 203 [2024-11-28 05:04:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:23,717 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1008 transitions. [2024-11-28 05:04:23,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 05:04:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1008 transitions. [2024-11-28 05:04:23,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 05:04:23,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:23,723 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:23,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:04:23,723 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:23,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:23,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1637590136, now seen corresponding path program 1 times [2024-11-28 05:04:23,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:23,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005132309] [2024-11-28 05:04:23,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:23,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 05:04:24,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005132309] [2024-11-28 05:04:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005132309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:24,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:24,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:04:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278937083] [2024-11-28 05:04:24,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:24,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:04:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:24,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:04:24,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:04:24,066 INFO L87 Difference]: Start difference. First operand 689 states and 1008 transitions. Second operand has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:24,243 INFO L93 Difference]: Finished difference Result 1308 states and 1931 transitions. [2024-11-28 05:04:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:04:24,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 211 [2024-11-28 05:04:24,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:24,251 INFO L225 Difference]: With dead ends: 1308 [2024-11-28 05:04:24,251 INFO L226 Difference]: Without dead ends: 691 [2024-11-28 05:04:24,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:24,254 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 3 mSDsluCounter, 5046 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:24,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5890 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:24,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-28 05:04:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2024-11-28 05:04:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 524 states have (on average 1.463740458015267) internal successors, (767), 538 states have internal predecessors, (767), 119 states have call successors, (119), 44 states have call predecessors, (119), 47 states have return successors, (125), 117 states have call predecessors, (125), 118 states have call successors, (125) [2024-11-28 05:04:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1011 transitions. [2024-11-28 05:04:24,314 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1011 transitions. Word has length 211 [2024-11-28 05:04:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:24,315 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1011 transitions. [2024-11-28 05:04:24,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-28 05:04:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1011 transitions. [2024-11-28 05:04:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 05:04:24,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:24,320 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:24,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:04:24,320 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:24,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 445415922, now seen corresponding path program 1 times [2024-11-28 05:04:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702352764] [2024-11-28 05:04:24,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:24,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 05:04:24,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:24,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702352764] [2024-11-28 05:04:24,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702352764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:24,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:24,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:04:24,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874793190] [2024-11-28 05:04:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:24,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:04:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:24,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:04:24,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:04:24,655 INFO L87 Difference]: Start difference. First operand 691 states and 1011 transitions. Second operand has 9 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 05:04:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:24,941 INFO L93 Difference]: Finished difference Result 1307 states and 1933 transitions. [2024-11-28 05:04:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:04:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 205 [2024-11-28 05:04:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:24,949 INFO L225 Difference]: With dead ends: 1307 [2024-11-28 05:04:24,949 INFO L226 Difference]: Without dead ends: 693 [2024-11-28 05:04:24,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:04:24,954 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 4 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:24,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6674 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:04:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-28 05:04:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-11-28 05:04:25,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 540 states have internal predecessors, (768), 119 states have call successors, (119), 44 states have call predecessors, (119), 48 states have return successors, (130), 117 states have call predecessors, (130), 118 states have call successors, (130) [2024-11-28 05:04:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1017 transitions. [2024-11-28 05:04:25,014 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1017 transitions. Word has length 205 [2024-11-28 05:04:25,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:25,016 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1017 transitions. [2024-11-28 05:04:25,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 05:04:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1017 transitions. [2024-11-28 05:04:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 05:04:25,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:25,021 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:25,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:04:25,022 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:25,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1105540919, now seen corresponding path program 1 times [2024-11-28 05:04:25,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:25,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283090440] [2024-11-28 05:04:25,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:25,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:25,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:25,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283090440] [2024-11-28 05:04:25,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283090440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:25,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703637899] [2024-11-28 05:04:25,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:25,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:25,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:25,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:25,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:04:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:25,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:04:25,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:25,885 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:25,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:26,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703637899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:26,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:04:26,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 05:04:26,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057622918] [2024-11-28 05:04:26,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:26,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:04:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:26,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:04:26,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:04:26,131 INFO L87 Difference]: Start difference. First operand 693 states and 1017 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-28 05:04:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:26,471 INFO L93 Difference]: Finished difference Result 1578 states and 2389 transitions. [2024-11-28 05:04:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:26,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 206 [2024-11-28 05:04:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:26,482 INFO L225 Difference]: With dead ends: 1578 [2024-11-28 05:04:26,483 INFO L226 Difference]: Without dead ends: 1250 [2024-11-28 05:04:26,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:04:26,486 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 899 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:26,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 2970 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:04:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-28 05:04:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1226. [2024-11-28 05:04:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 979 states have (on average 1.5178753830439224) internal successors, (1486), 994 states have internal predecessors, (1486), 198 states have call successors, (198), 44 states have call predecessors, (198), 48 states have return successors, (219), 196 states have call predecessors, (219), 197 states have call successors, (219) [2024-11-28 05:04:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1903 transitions. [2024-11-28 05:04:26,602 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1903 transitions. Word has length 206 [2024-11-28 05:04:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:26,603 INFO L471 AbstractCegarLoop]: Abstraction has 1226 states and 1903 transitions. [2024-11-28 05:04:26,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-28 05:04:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1903 transitions. [2024-11-28 05:04:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 05:04:26,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:26,614 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:26,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:04:26,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:26,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:26,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1280798349, now seen corresponding path program 1 times [2024-11-28 05:04:26,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:26,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900807436] [2024-11-28 05:04:26,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:26,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900807436] [2024-11-28 05:04:26,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900807436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:26,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:26,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:26,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968453514] [2024-11-28 05:04:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:26,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:26,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:26,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:26,978 INFO L87 Difference]: Start difference. First operand 1226 states and 1903 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:27,078 INFO L93 Difference]: Finished difference Result 2821 states and 4450 transitions. [2024-11-28 05:04:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 211 [2024-11-28 05:04:27,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:27,091 INFO L225 Difference]: With dead ends: 2821 [2024-11-28 05:04:27,091 INFO L226 Difference]: Without dead ends: 1728 [2024-11-28 05:04:27,096 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 [2024-11-28 05:04:27,096 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 163 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1703 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 [2024-11-28 05:04:27,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1703 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:27,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-28 05:04:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1720. [2024-11-28 05:04:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1394 states have (on average 1.5315638450502151) internal successors, (2135), 1409 states have internal predecessors, (2135), 277 states have call successors, (277), 44 states have call predecessors, (277), 48 states have return successors, (308), 275 states have call predecessors, (308), 276 states have call successors, (308) [2024-11-28 05:04:27,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2720 transitions. [2024-11-28 05:04:27,208 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2720 transitions. Word has length 211 [2024-11-28 05:04:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:27,209 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 2720 transitions. [2024-11-28 05:04:27,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2720 transitions. [2024-11-28 05:04:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:04:27,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:27,220 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:27,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:04:27,221 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:27,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:27,221 INFO L85 PathProgramCache]: Analyzing trace with hash -912414062, now seen corresponding path program 1 times [2024-11-28 05:04:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:27,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295927889] [2024-11-28 05:04:27,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:27,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:27,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295927889] [2024-11-28 05:04:27,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295927889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:27,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:27,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174272874] [2024-11-28 05:04:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:27,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:27,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:27,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:27,341 INFO L87 Difference]: Start difference. First operand 1720 states and 2720 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:27,475 INFO L93 Difference]: Finished difference Result 4051 states and 6474 transitions. [2024-11-28 05:04:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 219 [2024-11-28 05:04:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:27,494 INFO L225 Difference]: With dead ends: 4051 [2024-11-28 05:04:27,494 INFO L226 Difference]: Without dead ends: 2525 [2024-11-28 05:04:27,500 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 [2024-11-28 05:04:27,501 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 161 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1704 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 [2024-11-28 05:04:27,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1704 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-11-28 05:04:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2517. [2024-11-28 05:04:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2072 states have (on average 1.545849420849421) internal successors, (3203), 2087 states have internal predecessors, (3203), 396 states have call successors, (396), 44 states have call predecessors, (396), 48 states have return successors, (427), 394 states have call predecessors, (427), 395 states have call successors, (427) [2024-11-28 05:04:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 4026 transitions. [2024-11-28 05:04:27,716 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 4026 transitions. Word has length 219 [2024-11-28 05:04:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:27,718 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 4026 transitions. [2024-11-28 05:04:27,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 4026 transitions. [2024-11-28 05:04:27,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 05:04:27,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:27,735 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:27,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:04:27,735 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:27,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:27,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1851427559, now seen corresponding path program 1 times [2024-11-28 05:04:27,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:27,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745628433] [2024-11-28 05:04:27,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745628433] [2024-11-28 05:04:27,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745628433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:27,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:27,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468187167] [2024-11-28 05:04:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:27,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:27,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:27,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:27,867 INFO L87 Difference]: Start difference. First operand 2517 states and 4026 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:28,051 INFO L93 Difference]: Finished difference Result 5922 states and 9569 transitions. [2024-11-28 05:04:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:28,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 220 [2024-11-28 05:04:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:28,081 INFO L225 Difference]: With dead ends: 5922 [2024-11-28 05:04:28,082 INFO L226 Difference]: Without dead ends: 3752 [2024-11-28 05:04:28,091 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 [2024-11-28 05:04:28,091 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 159 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1693 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 [2024-11-28 05:04:28,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1693 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2024-11-28 05:04:28,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3744. [2024-11-28 05:04:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3137 states have (on average 1.5578578259483582) internal successors, (4887), 3152 states have internal predecessors, (4887), 558 states have call successors, (558), 44 states have call predecessors, (558), 48 states have return successors, (605), 556 states have call predecessors, (605), 557 states have call successors, (605) [2024-11-28 05:04:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 6050 transitions. [2024-11-28 05:04:28,346 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 6050 transitions. Word has length 220 [2024-11-28 05:04:28,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:28,348 INFO L471 AbstractCegarLoop]: Abstraction has 3744 states and 6050 transitions. [2024-11-28 05:04:28,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:28,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 6050 transitions. [2024-11-28 05:04:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 05:04:28,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:28,376 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:28,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:04:28,377 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:28,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1836521882, now seen corresponding path program 1 times [2024-11-28 05:04:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:28,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269316532] [2024-11-28 05:04:28,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:28,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:28,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269316532] [2024-11-28 05:04:28,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269316532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:28,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:28,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:28,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943935058] [2024-11-28 05:04:28,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:28,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:28,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:28,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:28,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:28,546 INFO L87 Difference]: Start difference. First operand 3744 states and 6050 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:28,773 INFO L93 Difference]: Finished difference Result 8878 states and 14475 transitions. [2024-11-28 05:04:28,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:28,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2024-11-28 05:04:28,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:28,810 INFO L225 Difference]: With dead ends: 8878 [2024-11-28 05:04:28,811 INFO L226 Difference]: Without dead ends: 5733 [2024-11-28 05:04:28,823 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 [2024-11-28 05:04:28,823 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 157 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1693 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 [2024-11-28 05:04:28,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1693 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:28,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2024-11-28 05:04:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 5725. [2024-11-28 05:04:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 4873 states have (on average 1.5678226964908681) internal successors, (7640), 4888 states have internal predecessors, (7640), 803 states have call successors, (803), 44 states have call predecessors, (803), 48 states have return successors, (876), 801 states have call predecessors, (876), 802 states have call successors, (876) [2024-11-28 05:04:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 9319 transitions. [2024-11-28 05:04:29,183 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 9319 transitions. Word has length 221 [2024-11-28 05:04:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:29,184 INFO L471 AbstractCegarLoop]: Abstraction has 5725 states and 9319 transitions. [2024-11-28 05:04:29,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 9319 transitions. [2024-11-28 05:04:29,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 05:04:29,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:29,209 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:29,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:04:29,210 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:29,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:29,210 INFO L85 PathProgramCache]: Analyzing trace with hash 656396177, now seen corresponding path program 1 times [2024-11-28 05:04:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:29,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898295374] [2024-11-28 05:04:29,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:29,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:29,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:29,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898295374] [2024-11-28 05:04:29,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898295374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:29,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:29,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:29,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973413510] [2024-11-28 05:04:29,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:29,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:29,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:29,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:29,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:29,367 INFO L87 Difference]: Start difference. First operand 5725 states and 9319 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:29,694 INFO L93 Difference]: Finished difference Result 13794 states and 22596 transitions. [2024-11-28 05:04:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 215 [2024-11-28 05:04:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:29,752 INFO L225 Difference]: With dead ends: 13794 [2024-11-28 05:04:29,752 INFO L226 Difference]: Without dead ends: 9053 [2024-11-28 05:04:29,772 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 [2024-11-28 05:04:29,772 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 155 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1710 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 [2024-11-28 05:04:29,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1710 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9053 states. [2024-11-28 05:04:30,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9053 to 9045. [2024-11-28 05:04:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 7700 states have (on average 1.566103896103896) internal successors, (12059), 7715 states have internal predecessors, (12059), 1296 states have call successors, (1296), 44 states have call predecessors, (1296), 48 states have return successors, (1413), 1294 states have call predecessors, (1413), 1295 states have call successors, (1413) [2024-11-28 05:04:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 14768 transitions. [2024-11-28 05:04:30,619 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 14768 transitions. Word has length 215 [2024-11-28 05:04:30,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:30,620 INFO L471 AbstractCegarLoop]: Abstraction has 9045 states and 14768 transitions. [2024-11-28 05:04:30,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 14768 transitions. [2024-11-28 05:04:30,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 05:04:30,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:30,669 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:30,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:04:30,669 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:30,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:30,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1060920408, now seen corresponding path program 1 times [2024-11-28 05:04:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249155382] [2024-11-28 05:04:30,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:30,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:30,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249155382] [2024-11-28 05:04:30,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249155382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:30,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:30,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:30,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017825302] [2024-11-28 05:04:30,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:30,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:30,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:30,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:30,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:30,791 INFO L87 Difference]: Start difference. First operand 9045 states and 14768 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:31,322 INFO L93 Difference]: Finished difference Result 22614 states and 37228 transitions. [2024-11-28 05:04:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:31,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2024-11-28 05:04:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:31,397 INFO L225 Difference]: With dead ends: 22614 [2024-11-28 05:04:31,397 INFO L226 Difference]: Without dead ends: 15033 [2024-11-28 05:04:31,425 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 [2024-11-28 05:04:31,425 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 153 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1696 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 [2024-11-28 05:04:31,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1696 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15033 states. [2024-11-28 05:04:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15033 to 15025. [2024-11-28 05:04:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15025 states, 12858 states have (on average 1.5723285114325711) internal successors, (20217), 12873 states have internal predecessors, (20217), 2118 states have call successors, (2118), 44 states have call predecessors, (2118), 48 states have return successors, (2313), 2116 states have call predecessors, (2313), 2117 states have call successors, (2313) [2024-11-28 05:04:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15025 states to 15025 states and 24648 transitions. [2024-11-28 05:04:32,431 INFO L78 Accepts]: Start accepts. Automaton has 15025 states and 24648 transitions. Word has length 216 [2024-11-28 05:04:32,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:32,431 INFO L471 AbstractCegarLoop]: Abstraction has 15025 states and 24648 transitions. [2024-11-28 05:04:32,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:32,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15025 states and 24648 transitions. [2024-11-28 05:04:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 05:04:32,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:32,486 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:32,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:04:32,486 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:32,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1668108822, now seen corresponding path program 1 times [2024-11-28 05:04:32,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:32,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409743795] [2024-11-28 05:04:32,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:32,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:32,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:32,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409743795] [2024-11-28 05:04:32,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409743795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:32,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:32,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:32,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712411690] [2024-11-28 05:04:32,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:32,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:32,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:32,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:32,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:32,607 INFO L87 Difference]: Start difference. First operand 15025 states and 24648 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:33,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:33,441 INFO L93 Difference]: Finished difference Result 36185 states and 59093 transitions. [2024-11-28 05:04:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:33,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 217 [2024-11-28 05:04:33,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:33,561 INFO L225 Difference]: With dead ends: 36185 [2024-11-28 05:04:33,561 INFO L226 Difference]: Without dead ends: 23736 [2024-11-28 05:04:33,605 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 [2024-11-28 05:04:33,606 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 151 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1675 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 [2024-11-28 05:04:33,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1675 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23736 states. [2024-11-28 05:04:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23736 to 23728. [2024-11-28 05:04:35,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23728 states, 20358 states have (on average 1.5457805285391493) internal successors, (31469), 20373 states have internal predecessors, (31469), 3321 states have call successors, (3321), 44 states have call predecessors, (3321), 48 states have return successors, (3660), 3319 states have call predecessors, (3660), 3320 states have call successors, (3660) [2024-11-28 05:04:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23728 states to 23728 states and 38450 transitions. [2024-11-28 05:04:35,733 INFO L78 Accepts]: Start accepts. Automaton has 23728 states and 38450 transitions. Word has length 217 [2024-11-28 05:04:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:35,734 INFO L471 AbstractCegarLoop]: Abstraction has 23728 states and 38450 transitions. [2024-11-28 05:04:35,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 23728 states and 38450 transitions. [2024-11-28 05:04:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:04:35,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:35,826 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:35,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:04:35,827 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:35,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:35,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1507473536, now seen corresponding path program 1 times [2024-11-28 05:04:35,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:35,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091758159] [2024-11-28 05:04:35,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:35,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091758159] [2024-11-28 05:04:35,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091758159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:35,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:35,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:35,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604628911] [2024-11-28 05:04:35,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:35,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:35,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:35,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:35,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:35,976 INFO L87 Difference]: Start difference. First operand 23728 states and 38450 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:37,476 INFO L93 Difference]: Finished difference Result 62598 states and 101801 transitions. [2024-11-28 05:04:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:37,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2024-11-28 05:04:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:37,696 INFO L225 Difference]: With dead ends: 62598 [2024-11-28 05:04:37,696 INFO L226 Difference]: Without dead ends: 42229 [2024-11-28 05:04:37,761 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 [2024-11-28 05:04:37,763 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 149 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1697 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 [2024-11-28 05:04:37,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1697 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42229 states. [2024-11-28 05:04:40,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42229 to 42221. [2024-11-28 05:04:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42221 states, 36401 states have (on average 1.5457267657481937) internal successors, (56266), 36416 states have internal predecessors, (56266), 5771 states have call successors, (5771), 44 states have call predecessors, (5771), 48 states have return successors, (6384), 5769 states have call predecessors, (6384), 5770 states have call successors, (6384) [2024-11-28 05:04:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42221 states to 42221 states and 68421 transitions. [2024-11-28 05:04:40,579 INFO L78 Accepts]: Start accepts. Automaton has 42221 states and 68421 transitions. Word has length 218 [2024-11-28 05:04:40,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:40,580 INFO L471 AbstractCegarLoop]: Abstraction has 42221 states and 68421 transitions. [2024-11-28 05:04:40,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:40,580 INFO L276 IsEmpty]: Start isEmpty. Operand 42221 states and 68421 transitions. [2024-11-28 05:04:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:04:40,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:40,670 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:40,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:04:40,671 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:40,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:40,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1794218089, now seen corresponding path program 1 times [2024-11-28 05:04:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495234832] [2024-11-28 05:04:40,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:40,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495234832] [2024-11-28 05:04:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495234832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:40,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:40,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:40,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488668637] [2024-11-28 05:04:40,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:40,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:40,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:40,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:40,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:40,829 INFO L87 Difference]: Start difference. First operand 42221 states and 68421 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:43,972 INFO L93 Difference]: Finished difference Result 114425 states and 186388 transitions. [2024-11-28 05:04:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2024-11-28 05:04:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:44,443 INFO L225 Difference]: With dead ends: 114425 [2024-11-28 05:04:44,443 INFO L226 Difference]: Without dead ends: 76702 [2024-11-28 05:04:44,521 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 [2024-11-28 05:04:44,522 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 147 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1706 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 [2024-11-28 05:04:44,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1706 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:44,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76702 states. [2024-11-28 05:04:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76702 to 76694. [2024-11-28 05:04:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76694 states, 66361 states have (on average 1.5493889483280843) internal successors, (102819), 66376 states have internal predecessors, (102819), 10284 states have call successors, (10284), 44 states have call predecessors, (10284), 48 states have return successors, (11429), 10282 states have call predecessors, (11429), 10283 states have call successors, (11429) [2024-11-28 05:04:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76694 states to 76694 states and 124532 transitions. [2024-11-28 05:04:49,315 INFO L78 Accepts]: Start accepts. Automaton has 76694 states and 124532 transitions. Word has length 219 [2024-11-28 05:04:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:49,316 INFO L471 AbstractCegarLoop]: Abstraction has 76694 states and 124532 transitions. [2024-11-28 05:04:49,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 05:04:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 76694 states and 124532 transitions. [2024-11-28 05:04:49,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-28 05:04:49,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:49,400 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:49,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 05:04:49,401 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:49,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash -846763277, now seen corresponding path program 1 times [2024-11-28 05:04:49,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:49,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805201793] [2024-11-28 05:04:49,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:49,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:04:49,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:49,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805201793] [2024-11-28 05:04:49,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805201793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:49,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:49,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:49,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242628272] [2024-11-28 05:04:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:49,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:49,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:49,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:49,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:49,526 INFO L87 Difference]: Start difference. First operand 76694 states and 124532 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:53,300 INFO L93 Difference]: Finished difference Result 143367 states and 233561 transitions. [2024-11-28 05:04:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:53,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 227 [2024-11-28 05:04:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:53,952 INFO L225 Difference]: With dead ends: 143367 [2024-11-28 05:04:53,952 INFO L226 Difference]: Without dead ends: 143039 [2024-11-28 05:04:53,994 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 [2024-11-28 05:04:53,995 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 141 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1712 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 [2024-11-28 05:04:53,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1712 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143039 states. [2024-11-28 05:04:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143039 to 143031. [2024-11-28 05:04:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143031 states, 124330 states have (on average 1.5483953993404649) internal successors, (192512), 124345 states have internal predecessors, (192512), 18652 states have call successors, (18652), 44 states have call predecessors, (18652), 48 states have return successors, (20843), 18650 states have call predecessors, (20843), 18651 states have call successors, (20843) [2024-11-28 05:04:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143031 states to 143031 states and 232007 transitions. [2024-11-28 05:04:59,496 INFO L78 Accepts]: Start accepts. Automaton has 143031 states and 232007 transitions. Word has length 227 [2024-11-28 05:04:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:59,496 INFO L471 AbstractCegarLoop]: Abstraction has 143031 states and 232007 transitions. [2024-11-28 05:04:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 05:04:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 143031 states and 232007 transitions. [2024-11-28 05:04:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 05:04:59,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:59,606 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:59,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 05:04:59,606 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:59,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:59,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1434294702, now seen corresponding path program 1 times [2024-11-28 05:04:59,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:59,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138177660] [2024-11-28 05:04:59,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:59,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 05:05:00,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:00,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138177660] [2024-11-28 05:05:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138177660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999045325] [2024-11-28 05:05:00,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:00,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:00,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:00,297 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:00,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0702e8c-f0ea-45ac-9bf0-89555a91cb3d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:05:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:00,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:05:00,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-28 05:05:02,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:05:02,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999045325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:02,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:05:02,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 26 [2024-11-28 05:05:02,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656787168] [2024-11-28 05:05:02,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:02,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:05:02,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:02,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:05:02,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:05:02,187 INFO L87 Difference]: Start difference. First operand 143031 states and 232007 transitions. Second operand has 14 states, 12 states have (on average 12.25) internal successors, (147), 11 states have internal predecessors, (147), 6 states have call successors, (33), 5 states have call predecessors, (33), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28)