./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --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 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:45:21,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:45:21,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:45:21,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:45:21,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:45:21,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:45:21,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:45:21,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:45:21,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:45:21,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:45:21,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:45:21,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:45:21,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:45:21,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:45:21,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:45:21,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:45:21,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:45:21,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:45:21,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:45:21,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:45:21,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:45:21,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:45:21,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:45:21,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:45:21,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:45:21,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:45:21,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:45:21,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:45:21,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:45:21,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:45:21,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:45:21,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:45:21,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:45:21,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:45:21,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:45:21,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:45:21,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:45:21,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:45:21,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:45:21,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:45:21,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:45:21,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:45:21,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:45:21,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:45:21,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:45:21,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:45:21,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:45:21,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:45:21,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:45:21,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:45:21,399 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:45:21,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:45:21,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:45:21,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:45:21,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:45:21,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:45:21,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:45:21,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:45:21,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:45:21,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:45:21,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:45:21,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:45:21,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:45:21,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:45:21,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:45:21,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:45:21,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:45:21,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:45:21,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:45:21,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:45:21,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:45:21,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:45:21,403 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:45:21,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:45:21,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:45:21,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:45:21,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a [2021-12-07 00:45:21,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:45:21,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:45:21,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:45:21,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:45:21,621 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:45:21,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2021-12-07 00:45:21,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/data/8c601e8a2/8f8b8314da7f4306b35c863f492b3309/FLAG10aa5239b [2021-12-07 00:45:22,145 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:45:22,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2021-12-07 00:45:22,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/data/8c601e8a2/8f8b8314da7f4306b35c863f492b3309/FLAG10aa5239b [2021-12-07 00:45:22,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/data/8c601e8a2/8f8b8314da7f4306b35c863f492b3309 [2021-12-07 00:45:22,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:45:22,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:45:22,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:45:22,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:45:22,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:45:22,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:22" (1/1) ... [2021-12-07 00:45:22,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798cef0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:22, skipping insertion in model container [2021-12-07 00:45:22,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:22" (1/1) ... [2021-12-07 00:45:22,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:45:22,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:45:22,978 WARN L230 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_370cdc65-e91d-4804-90c2-b32be197e734/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2021-12-07 00:45:23,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:45:23,029 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:45:23,085 WARN L230 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_370cdc65-e91d-4804-90c2-b32be197e734/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2021-12-07 00:45:23,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:45:23,127 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:45:23,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23 WrapperNode [2021-12-07 00:45:23,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:45:23,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:45:23,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:45:23,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:45:23,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,194 INFO L137 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1088 [2021-12-07 00:45:23,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:45:23,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:45:23,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:45:23,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:45:23,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:45:23,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:45:23,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:45:23,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:45:23,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (1/1) ... [2021-12-07 00:45:23,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:45:23,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:23,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:45:23,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:45:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-07 00:45:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-07 00:45:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-07 00:45:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-07 00:45:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-07 00:45:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-07 00:45:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-07 00:45:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-07 00:45:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-07 00:45:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-07 00:45:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-07 00:45:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-07 00:45:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-07 00:45:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-07 00:45:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-07 00:45:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-07 00:45:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-07 00:45:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-07 00:45:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-07 00:45:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-07 00:45:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-07 00:45:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-07 00:45:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-07 00:45:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-07 00:45:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-07 00:45:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-07 00:45:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-07 00:45:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-12-07 00:45:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-07 00:45:23,316 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-07 00:45:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-07 00:45:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-07 00:45:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-07 00:45:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-07 00:45:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:45:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-07 00:45:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-07 00:45:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-07 00:45:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-07 00:45:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:45:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:45:23,496 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:45:23,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:45:24,043 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:45:24,055 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:45:24,055 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:45:24,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:45:24 BoogieIcfgContainer [2021-12-07 00:45:24,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:45:24,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:45:24,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:45:24,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:45:24,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:45:22" (1/3) ... [2021-12-07 00:45:24,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c8c527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:45:24, skipping insertion in model container [2021-12-07 00:45:24,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:23" (2/3) ... [2021-12-07 00:45:24,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c8c527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:45:24, skipping insertion in model container [2021-12-07 00:45:24,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:45:24" (3/3) ... [2021-12-07 00:45:24,065 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2021-12-07 00:45:24,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:45:24,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:45:24,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:45:24,120 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:45:24,120 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:45:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 453 states, 349 states have (on average 1.5329512893982808) internal successors, (535), 354 states have internal predecessors, (535), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2021-12-07 00:45:24,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-07 00:45:24,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:24,166 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:24,166 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:24,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash -10753116, now seen corresponding path program 1 times [2021-12-07 00:45:24,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199884196] [2021-12-07 00:45:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:24,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 00:45:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:45:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:45:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:45:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-07 00:45:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:45:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:45:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:45:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:45:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-07 00:45:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:45:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:45:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:45:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:45:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:45:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:45:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:45:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:45:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-07 00:45:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-07 00:45:24,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:24,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199884196] [2021-12-07 00:45:24,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199884196] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:24,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116523318] [2021-12-07 00:45:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:24,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:24,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:24,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:24,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:45:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:24,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 00:45:24,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-07 00:45:25,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:45:25,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116523318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:25,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:45:25,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-07 00:45:25,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375114553] [2021-12-07 00:45:25,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:25,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:45:25,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:45:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:45:25,169 INFO L87 Difference]: Start difference. First operand has 453 states, 349 states have (on average 1.5329512893982808) internal successors, (535), 354 states have internal predecessors, (535), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:25,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:25,234 INFO L93 Difference]: Finished difference Result 713 states and 1052 transitions. [2021-12-07 00:45:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:45:25,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 170 [2021-12-07 00:45:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:25,253 INFO L225 Difference]: With dead ends: 713 [2021-12-07 00:45:25,253 INFO L226 Difference]: Without dead ends: 446 [2021-12-07 00:45:25,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:45:25,263 INFO L933 BasicCegarLoop]: 677 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, 677 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 [2021-12-07 00:45:25,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-12-07 00:45:25,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2021-12-07 00:45:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 343 states have (on average 1.5276967930029155) internal successors, (524), 347 states have internal predecessors, (524), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2021-12-07 00:45:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 669 transitions. [2021-12-07 00:45:25,333 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 669 transitions. Word has length 170 [2021-12-07 00:45:25,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:25,335 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 669 transitions. [2021-12-07 00:45:25,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 669 transitions. [2021-12-07 00:45:25,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-07 00:45:25,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:25,340 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:25,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:45:25,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-07 00:45:25,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:25,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:25,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1271687347, now seen corresponding path program 1 times [2021-12-07 00:45:25,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:25,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654563902] [2021-12-07 00:45:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:25,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 00:45:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:45:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:45:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 00:45:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:45:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-07 00:45:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-07 00:45:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:45:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:45:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:45:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 00:45:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:45:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 00:45:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:45:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:45:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:45:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-07 00:45:25,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654563902] [2021-12-07 00:45:25,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654563902] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:25,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607467725] [2021-12-07 00:45:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:25,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:25,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:25,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:45:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:25,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:45:25,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-07 00:45:26,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:45:26,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607467725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:26,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:45:26,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-07 00:45:26,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818610558] [2021-12-07 00:45:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:26,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:45:26,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:26,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:45:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:45:26,099 INFO L87 Difference]: Start difference. First operand 446 states and 669 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:26,136 INFO L93 Difference]: Finished difference Result 703 states and 1030 transitions. [2021-12-07 00:45:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:45:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2021-12-07 00:45:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:26,141 INFO L225 Difference]: With dead ends: 703 [2021-12-07 00:45:26,142 INFO L226 Difference]: Without dead ends: 449 [2021-12-07 00:45:26,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:45:26,145 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1332 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 [2021-12-07 00:45:26,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1332 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-12-07 00:45:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 448. [2021-12-07 00:45:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 345 states have (on average 1.5246376811594202) internal successors, (526), 349 states have internal predecessors, (526), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2021-12-07 00:45:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 671 transitions. [2021-12-07 00:45:26,178 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 671 transitions. Word has length 152 [2021-12-07 00:45:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:26,178 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 671 transitions. [2021-12-07 00:45:26,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 671 transitions. [2021-12-07 00:45:26,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-07 00:45:26,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:26,183 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:26,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:45:26,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:26,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1858800220, now seen corresponding path program 1 times [2021-12-07 00:45:26,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:26,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613535845] [2021-12-07 00:45:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:26,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 00:45:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:45:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:45:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-07 00:45:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:45:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-07 00:45:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:45:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:45:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:45:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 00:45:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:45:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:45:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 00:45:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-07 00:45:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:45:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:45:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 00:45:26,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:26,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613535845] [2021-12-07 00:45:26,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613535845] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:26,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704519025] [2021-12-07 00:45:26,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:26,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:26,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:26,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:26,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:45:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:26,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:45:26,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-07 00:45:26,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:45:26,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704519025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:26,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:45:26,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-07 00:45:26,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206126914] [2021-12-07 00:45:26,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:26,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:45:26,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:26,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:45:26,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:45:26,884 INFO L87 Difference]: Start difference. First operand 448 states and 671 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:26,914 INFO L93 Difference]: Finished difference Result 944 states and 1434 transitions. [2021-12-07 00:45:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:45:26,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2021-12-07 00:45:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:26,918 INFO L225 Difference]: With dead ends: 944 [2021-12-07 00:45:26,918 INFO L226 Difference]: Without dead ends: 523 [2021-12-07 00:45:26,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:45:26,921 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 134 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1313 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 [2021-12-07 00:45:26,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1313 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-12-07 00:45:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 515. [2021-12-07 00:45:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 398 states have (on average 1.5452261306532664) internal successors, (615), 402 states have internal predecessors, (615), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2021-12-07 00:45:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 788 transitions. [2021-12-07 00:45:26,944 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 788 transitions. Word has length 158 [2021-12-07 00:45:26,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:26,945 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 788 transitions. [2021-12-07 00:45:26,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 788 transitions. [2021-12-07 00:45:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-07 00:45:26,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:26,948 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:26,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:45:27,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-07 00:45:27,157 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash -540724864, now seen corresponding path program 1 times [2021-12-07 00:45:27,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:27,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748902001] [2021-12-07 00:45:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:27,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 00:45:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-07 00:45:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:45:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:45:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-07 00:45:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:45:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:45:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:45:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:45:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:45:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:45:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:45:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:45:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:45:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-07 00:45:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-07 00:45:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 00:45:27,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:27,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748902001] [2021-12-07 00:45:27,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748902001] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:27,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858663135] [2021-12-07 00:45:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:27,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:27,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:27,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:27,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:45:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:27,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:45:27,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-07 00:45:27,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:45:27,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858663135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:27,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:45:27,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-07 00:45:27,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806468454] [2021-12-07 00:45:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:27,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:45:27,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:45:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:45:27,684 INFO L87 Difference]: Start difference. First operand 515 states and 788 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-07 00:45:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:27,756 INFO L93 Difference]: Finished difference Result 1021 states and 1566 transitions. [2021-12-07 00:45:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:45:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2021-12-07 00:45:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:27,761 INFO L225 Difference]: With dead ends: 1021 [2021-12-07 00:45:27,761 INFO L226 Difference]: Without dead ends: 517 [2021-12-07 00:45:27,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:27,764 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 152 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:27,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2466 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-12-07 00:45:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2021-12-07 00:45:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 399 states have (on average 1.543859649122807) internal successors, (616), 404 states have internal predecessors, (616), 87 states have call successors, (87), 29 states have call predecessors, (87), 30 states have return successors, (88), 85 states have call predecessors, (88), 86 states have call successors, (88) [2021-12-07 00:45:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 791 transitions. [2021-12-07 00:45:27,794 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 791 transitions. Word has length 159 [2021-12-07 00:45:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:27,794 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 791 transitions. [2021-12-07 00:45:27,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-07 00:45:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 791 transitions. [2021-12-07 00:45:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-07 00:45:27,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:27,799 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:27,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 00:45:27,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:28,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash -244315761, now seen corresponding path program 1 times [2021-12-07 00:45:28,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225436827] [2021-12-07 00:45:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:28,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:45:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:45:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 00:45:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:45:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-07 00:45:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-07 00:45:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:45:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:45:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:45:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:45:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-07 00:45:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:45:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 00:45:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 00:45:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:45:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:45:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-07 00:45:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-07 00:45:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:28,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:28,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225436827] [2021-12-07 00:45:28,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225436827] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:28,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65276192] [2021-12-07 00:45:28,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:28,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:28,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:28,176 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:28,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 00:45:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:45:28,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-07 00:45:28,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:45:28,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65276192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:28,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:45:28,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-07 00:45:28,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985261199] [2021-12-07 00:45:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:28,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:45:28,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:45:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-07 00:45:28,517 INFO L87 Difference]: Start difference. First operand 517 states and 791 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:45:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:28,571 INFO L93 Difference]: Finished difference Result 1023 states and 1571 transitions. [2021-12-07 00:45:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:45:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 179 [2021-12-07 00:45:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:28,574 INFO L225 Difference]: With dead ends: 1023 [2021-12-07 00:45:28,574 INFO L226 Difference]: Without dead ends: 519 [2021-12-07 00:45:28,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-07 00:45:28,577 INFO L933 BasicCegarLoop]: 658 mSDtfsCounter, 151 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:28,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2455 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-12-07 00:45:28,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2021-12-07 00:45:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 400 states have (on average 1.5425) internal successors, (617), 406 states have internal predecessors, (617), 87 states have call successors, (87), 29 states have call predecessors, (87), 31 states have return successors, (93), 85 states have call predecessors, (93), 86 states have call successors, (93) [2021-12-07 00:45:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 797 transitions. [2021-12-07 00:45:28,597 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 797 transitions. Word has length 179 [2021-12-07 00:45:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:28,597 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 797 transitions. [2021-12-07 00:45:28,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:45:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 797 transitions. [2021-12-07 00:45:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-07 00:45:28,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:28,600 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:28,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 00:45:28,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:28,801 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:28,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2107311229, now seen corresponding path program 1 times [2021-12-07 00:45:28,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074129220] [2021-12-07 00:45:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:28,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-07 00:45:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-07 00:45:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-07 00:45:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:45:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:45:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:45:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:45:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-07 00:45:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:45:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:45:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-07 00:45:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:45:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-07 00:45:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-07 00:45:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 00:45:28,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:28,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074129220] [2021-12-07 00:45:28,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074129220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:28,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:28,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:45:28,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081478469] [2021-12-07 00:45:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:28,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:45:28,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:28,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:45:28,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:45:28,942 INFO L87 Difference]: Start difference. First operand 519 states and 797 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-07 00:45:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:30,614 INFO L93 Difference]: Finished difference Result 1218 states and 1886 transitions. [2021-12-07 00:45:30,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:45:30,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2021-12-07 00:45:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:30,621 INFO L225 Difference]: With dead ends: 1218 [2021-12-07 00:45:30,621 INFO L226 Difference]: Without dead ends: 722 [2021-12-07 00:45:30,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:45:30,624 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 1812 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 3002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:30,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1832 Valid, 2021 Invalid, 3002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:45:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-12-07 00:45:30,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 519. [2021-12-07 00:45:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 400 states have (on average 1.5425) internal successors, (617), 406 states have internal predecessors, (617), 87 states have call successors, (87), 29 states have call predecessors, (87), 31 states have return successors, (92), 85 states have call predecessors, (92), 86 states have call successors, (92) [2021-12-07 00:45:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 796 transitions. [2021-12-07 00:45:30,676 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 796 transitions. Word has length 161 [2021-12-07 00:45:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:30,676 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 796 transitions. [2021-12-07 00:45:30,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-07 00:45:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 796 transitions. [2021-12-07 00:45:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-07 00:45:30,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:30,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:30,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:45:30,681 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:30,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1367436652, now seen corresponding path program 1 times [2021-12-07 00:45:30,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:30,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665172631] [2021-12-07 00:45:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:30,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-07 00:45:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 00:45:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 00:45:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 00:45:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:45:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:45:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:45:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-07 00:45:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:45:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:45:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-07 00:45:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:45:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:45:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:45:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:45:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-07 00:45:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-07 00:45:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-07 00:45:30,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:30,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665172631] [2021-12-07 00:45:30,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665172631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:30,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:30,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:45:30,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756984728] [2021-12-07 00:45:30,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:30,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:45:30,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:30,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:45:30,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:45:30,826 INFO L87 Difference]: Start difference. First operand 519 states and 796 transitions. Second operand has 9 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:45:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:32,294 INFO L93 Difference]: Finished difference Result 1220 states and 1889 transitions. [2021-12-07 00:45:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:45:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 181 [2021-12-07 00:45:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:32,299 INFO L225 Difference]: With dead ends: 1220 [2021-12-07 00:45:32,299 INFO L226 Difference]: Without dead ends: 724 [2021-12-07 00:45:32,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:45:32,301 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 1846 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:32,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1867 Valid, 1972 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:45:32,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-12-07 00:45:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 521. [2021-12-07 00:45:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 401 states have (on average 1.541147132169576) internal successors, (618), 408 states have internal predecessors, (618), 87 states have call successors, (87), 29 states have call predecessors, (87), 32 states have return successors, (94), 85 states have call predecessors, (94), 86 states have call successors, (94) [2021-12-07 00:45:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 799 transitions. [2021-12-07 00:45:32,337 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 799 transitions. Word has length 181 [2021-12-07 00:45:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:32,337 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 799 transitions. [2021-12-07 00:45:32,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:45:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 799 transitions. [2021-12-07 00:45:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-07 00:45:32,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:32,342 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:32,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:45:32,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:32,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1444496977, now seen corresponding path program 1 times [2021-12-07 00:45:32,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:32,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452948432] [2021-12-07 00:45:32,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:32,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:45:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-07 00:45:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:45:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:45:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:45:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-07 00:45:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 00:45:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:45:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:45:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:45:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-07 00:45:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-07 00:45:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-07 00:45:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-07 00:45:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-07 00:45:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-07 00:45:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:32,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:32,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452948432] [2021-12-07 00:45:32,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452948432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:32,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:32,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:45:32,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295589162] [2021-12-07 00:45:32,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:32,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:45:32,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:32,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:45:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:45:32,510 INFO L87 Difference]: Start difference. First operand 521 states and 799 transitions. Second operand has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (26), 6 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-07 00:45:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:34,231 INFO L93 Difference]: Finished difference Result 1218 states and 1884 transitions. [2021-12-07 00:45:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:45:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (26), 6 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 182 [2021-12-07 00:45:34,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:34,235 INFO L225 Difference]: With dead ends: 1218 [2021-12-07 00:45:34,235 INFO L226 Difference]: Without dead ends: 724 [2021-12-07 00:45:34,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-07 00:45:34,237 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1930 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 4007 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 4007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:34,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 2597 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 4007 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:45:34,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-12-07 00:45:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 521. [2021-12-07 00:45:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 401 states have (on average 1.541147132169576) internal successors, (618), 408 states have internal predecessors, (618), 87 states have call successors, (87), 29 states have call predecessors, (87), 32 states have return successors, (93), 85 states have call predecessors, (93), 86 states have call successors, (93) [2021-12-07 00:45:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 798 transitions. [2021-12-07 00:45:34,263 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 798 transitions. Word has length 182 [2021-12-07 00:45:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:34,263 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 798 transitions. [2021-12-07 00:45:34,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (26), 6 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-07 00:45:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 798 transitions. [2021-12-07 00:45:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-07 00:45:34,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:34,266 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:34,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:45:34,266 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash 609705331, now seen corresponding path program 1 times [2021-12-07 00:45:34,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:34,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776678013] [2021-12-07 00:45:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:34,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-07 00:45:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-07 00:45:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:45:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:45:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:45:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:45:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:45:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:45:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:45:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-07 00:45:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 00:45:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:45:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:45:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-07 00:45:34,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:34,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776678013] [2021-12-07 00:45:34,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776678013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:34,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:34,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:45:34,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867826448] [2021-12-07 00:45:34,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:34,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:45:34,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:34,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:45:34,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:45:34,388 INFO L87 Difference]: Start difference. First operand 521 states and 798 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:45:36,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:36,108 INFO L93 Difference]: Finished difference Result 1220 states and 1890 transitions. [2021-12-07 00:45:36,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:45:36,109 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 164 [2021-12-07 00:45:36,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:36,114 INFO L225 Difference]: With dead ends: 1220 [2021-12-07 00:45:36,114 INFO L226 Difference]: Without dead ends: 726 [2021-12-07 00:45:36,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-07 00:45:36,117 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 1876 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 4269 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 4269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:36,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1876 Valid, 2701 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 4269 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:45:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-12-07 00:45:36,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 523. [2021-12-07 00:45:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 402 states have (on average 1.5398009950248757) internal successors, (619), 410 states have internal predecessors, (619), 87 states have call successors, (87), 29 states have call predecessors, (87), 33 states have return successors, (98), 85 states have call predecessors, (98), 86 states have call successors, (98) [2021-12-07 00:45:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 804 transitions. [2021-12-07 00:45:36,154 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 804 transitions. Word has length 164 [2021-12-07 00:45:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:36,155 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 804 transitions. [2021-12-07 00:45:36,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:45:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 804 transitions. [2021-12-07 00:45:36,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-07 00:45:36,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:36,158 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:36,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:45:36,158 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:36,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash 39579404, now seen corresponding path program 1 times [2021-12-07 00:45:36,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:36,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626556186] [2021-12-07 00:45:36,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:36,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:45:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:45:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:45:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:45:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:45:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:45:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:45:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:45:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:45:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-07 00:45:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:45:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-07 00:45:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:45:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-07 00:45:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 00:45:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-07 00:45:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:36,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:36,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626556186] [2021-12-07 00:45:36,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626556186] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:45:36,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828637273] [2021-12-07 00:45:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:36,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:45:36,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:45:36,270 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:45:36,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 00:45:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:36,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:45:36,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:45:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:36,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:45:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:36,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828637273] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:45:36,797 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:45:36,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-07 00:45:36,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098999396] [2021-12-07 00:45:36,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:45:36,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:45:36,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:45:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:45:36,799 INFO L87 Difference]: Start difference. First operand 523 states and 804 transitions. Second operand has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (53), 6 states have call predecessors, (53), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:45:38,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:38,040 INFO L93 Difference]: Finished difference Result 1422 states and 2283 transitions. [2021-12-07 00:45:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:45:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (53), 6 states have call predecessors, (53), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 184 [2021-12-07 00:45:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:38,046 INFO L225 Difference]: With dead ends: 1422 [2021-12-07 00:45:38,046 INFO L226 Difference]: Without dead ends: 1168 [2021-12-07 00:45:38,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:45:38,048 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 2220 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 3035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:38,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2277 Valid, 2444 Invalid, 3035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 00:45:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-12-07 00:45:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 941. [2021-12-07 00:45:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 741 states have (on average 1.6086369770580298) internal successors, (1192), 749 states have internal predecessors, (1192), 166 states have call successors, (166), 29 states have call predecessors, (166), 33 states have return successors, (187), 164 states have call predecessors, (187), 165 states have call successors, (187) [2021-12-07 00:45:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1545 transitions. [2021-12-07 00:45:38,094 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1545 transitions. Word has length 184 [2021-12-07 00:45:38,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:38,095 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 1545 transitions. [2021-12-07 00:45:38,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 7 states have internal predecessors, (160), 2 states have call successors, (53), 6 states have call predecessors, (53), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-07 00:45:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1545 transitions. [2021-12-07 00:45:38,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-07 00:45:38,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:38,099 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:38,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-07 00:45:38,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-07 00:45:38,300 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:38,300 INFO L85 PathProgramCache]: Analyzing trace with hash 769831716, now seen corresponding path program 1 times [2021-12-07 00:45:38,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:38,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010701664] [2021-12-07 00:45:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:38,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:45:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 00:45:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:45:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:45:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:45:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:45:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:45:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 00:45:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:45:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 00:45:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:45:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:45:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-07 00:45:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:38,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:38,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010701664] [2021-12-07 00:45:38,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010701664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:38,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:38,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:38,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995914480] [2021-12-07 00:45:38,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:38,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:38,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:38,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:38,412 INFO L87 Difference]: Start difference. First operand 941 states and 1545 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:39,484 INFO L93 Difference]: Finished difference Result 2440 states and 4084 transitions. [2021-12-07 00:45:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:39,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 171 [2021-12-07 00:45:39,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:39,495 INFO L225 Difference]: With dead ends: 2440 [2021-12-07 00:45:39,495 INFO L226 Difference]: Without dead ends: 1567 [2021-12-07 00:45:39,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:39,499 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 1762 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:39,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1781 Valid, 1734 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:39,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2021-12-07 00:45:39,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1356. [2021-12-07 00:45:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1077 states have (on average 1.626740947075209) internal successors, (1752), 1085 states have internal predecessors, (1752), 245 states have call successors, (245), 29 states have call predecessors, (245), 33 states have return successors, (276), 243 states have call predecessors, (276), 244 states have call successors, (276) [2021-12-07 00:45:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2273 transitions. [2021-12-07 00:45:39,591 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2273 transitions. Word has length 171 [2021-12-07 00:45:39,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:39,592 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 2273 transitions. [2021-12-07 00:45:39,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:39,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2273 transitions. [2021-12-07 00:45:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-07 00:45:39,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:39,601 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:39,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:45:39,602 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:39,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:39,602 INFO L85 PathProgramCache]: Analyzing trace with hash 641024862, now seen corresponding path program 1 times [2021-12-07 00:45:39,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:39,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737578237] [2021-12-07 00:45:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:39,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-07 00:45:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:45:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:45:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-07 00:45:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:45:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:45:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:45:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 00:45:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:45:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 00:45:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-07 00:45:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 00:45:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:45:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 00:45:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-07 00:45:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-07 00:45:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:39,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737578237] [2021-12-07 00:45:39,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737578237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:39,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:39,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:39,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413414859] [2021-12-07 00:45:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:39,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:39,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:39,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:39,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:39,721 INFO L87 Difference]: Start difference. First operand 1356 states and 2273 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:40,733 INFO L93 Difference]: Finished difference Result 3454 states and 5862 transitions. [2021-12-07 00:45:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:40,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2021-12-07 00:45:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:40,745 INFO L225 Difference]: With dead ends: 3454 [2021-12-07 00:45:40,745 INFO L226 Difference]: Without dead ends: 2219 [2021-12-07 00:45:40,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:40,748 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 1776 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:40,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 1655 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [811 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2021-12-07 00:45:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2008. [2021-12-07 00:45:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1610 states have (on average 1.6391304347826088) internal successors, (2639), 1618 states have internal predecessors, (2639), 364 states have call successors, (364), 29 states have call predecessors, (364), 33 states have return successors, (395), 362 states have call predecessors, (395), 363 states have call successors, (395) [2021-12-07 00:45:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3398 transitions. [2021-12-07 00:45:40,848 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3398 transitions. Word has length 191 [2021-12-07 00:45:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:40,848 INFO L470 AbstractCegarLoop]: Abstraction has 2008 states and 3398 transitions. [2021-12-07 00:45:40,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3398 transitions. [2021-12-07 00:45:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-07 00:45:40,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:40,856 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:40,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:45:40,856 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:40,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:40,857 INFO L85 PathProgramCache]: Analyzing trace with hash 212435366, now seen corresponding path program 1 times [2021-12-07 00:45:40,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:40,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34042443] [2021-12-07 00:45:40,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:40,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 00:45:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:45:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:45:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:45:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-07 00:45:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:45:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:45:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:45:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 00:45:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:45:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 00:45:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-07 00:45:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-07 00:45:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:40,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:40,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34042443] [2021-12-07 00:45:40,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34042443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:40,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:40,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:40,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221442968] [2021-12-07 00:45:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:40,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:40,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:40,940 INFO L87 Difference]: Start difference. First operand 2008 states and 3398 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:42,041 INFO L93 Difference]: Finished difference Result 4984 states and 8564 transitions. [2021-12-07 00:45:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:42,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2021-12-07 00:45:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:42,058 INFO L225 Difference]: With dead ends: 4984 [2021-12-07 00:45:42,058 INFO L226 Difference]: Without dead ends: 3222 [2021-12-07 00:45:42,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:42,062 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 1813 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:42,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1833 Valid, 1648 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2021-12-07 00:45:42,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3011. [2021-12-07 00:45:42,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2451 states have (on average 1.6487148102815177) internal successors, (4041), 2459 states have internal predecessors, (4041), 526 states have call successors, (526), 29 states have call predecessors, (526), 33 states have return successors, (573), 524 states have call predecessors, (573), 525 states have call successors, (573) [2021-12-07 00:45:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 5140 transitions. [2021-12-07 00:45:42,207 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 5140 transitions. Word has length 173 [2021-12-07 00:45:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:42,207 INFO L470 AbstractCegarLoop]: Abstraction has 3011 states and 5140 transitions. [2021-12-07 00:45:42,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 5140 transitions. [2021-12-07 00:45:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-07 00:45:42,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:42,218 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:42,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:45:42,218 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 936119318, now seen corresponding path program 1 times [2021-12-07 00:45:42,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:42,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277248711] [2021-12-07 00:45:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:42,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-07 00:45:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:45:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-07 00:45:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:45:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-07 00:45:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-07 00:45:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 00:45:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:45:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:45:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-07 00:45:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-07 00:45:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:45:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:45:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:42,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:42,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277248711] [2021-12-07 00:45:42,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277248711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:42,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:42,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:42,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371583245] [2021-12-07 00:45:42,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:42,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:42,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:42,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:42,301 INFO L87 Difference]: Start difference. First operand 3011 states and 5140 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:43,490 INFO L93 Difference]: Finished difference Result 7408 states and 12853 transitions. [2021-12-07 00:45:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:43,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 174 [2021-12-07 00:45:43,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:43,514 INFO L225 Difference]: With dead ends: 7408 [2021-12-07 00:45:43,514 INFO L226 Difference]: Without dead ends: 4847 [2021-12-07 00:45:43,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:43,520 INFO L933 BasicCegarLoop]: 763 mSDtfsCounter, 1758 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:43,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1777 Valid, 1665 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:45:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2021-12-07 00:45:43,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4636. [2021-12-07 00:45:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4636 states, 3831 states have (on average 1.6554424432263117) internal successors, (6342), 3839 states have internal predecessors, (6342), 771 states have call successors, (771), 29 states have call predecessors, (771), 33 states have return successors, (844), 769 states have call predecessors, (844), 770 states have call successors, (844) [2021-12-07 00:45:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 7957 transitions. [2021-12-07 00:45:43,731 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 7957 transitions. Word has length 174 [2021-12-07 00:45:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:43,732 INFO L470 AbstractCegarLoop]: Abstraction has 4636 states and 7957 transitions. [2021-12-07 00:45:43,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 7957 transitions. [2021-12-07 00:45:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-07 00:45:43,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:43,748 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:43,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:45:43,748 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:43,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash -979550526, now seen corresponding path program 1 times [2021-12-07 00:45:43,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:43,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075574359] [2021-12-07 00:45:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:43,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:45:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:45:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:45:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:45:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 00:45:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:45:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 00:45:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-07 00:45:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:45:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:45:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-07 00:45:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-07 00:45:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-07 00:45:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:43,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:43,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075574359] [2021-12-07 00:45:43,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075574359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:43,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:43,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:43,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224856899] [2021-12-07 00:45:43,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:43,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:43,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:43,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:43,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:43,836 INFO L87 Difference]: Start difference. First operand 4636 states and 7957 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:45,082 INFO L93 Difference]: Finished difference Result 11454 states and 20013 transitions. [2021-12-07 00:45:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:45,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2021-12-07 00:45:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:45,133 INFO L225 Difference]: With dead ends: 11454 [2021-12-07 00:45:45,133 INFO L226 Difference]: Without dead ends: 7580 [2021-12-07 00:45:45,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:45,143 INFO L933 BasicCegarLoop]: 785 mSDtfsCounter, 1745 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:45,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1763 Valid, 1712 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [802 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:45,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2021-12-07 00:45:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7369. [2021-12-07 00:45:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 6071 states have (on average 1.654916817657717) internal successors, (10047), 6079 states have internal predecessors, (10047), 1264 states have call successors, (1264), 29 states have call predecessors, (1264), 33 states have return successors, (1381), 1262 states have call predecessors, (1381), 1263 states have call successors, (1381) [2021-12-07 00:45:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 12692 transitions. [2021-12-07 00:45:45,469 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 12692 transitions. Word has length 175 [2021-12-07 00:45:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:45,469 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 12692 transitions. [2021-12-07 00:45:45,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 12692 transitions. [2021-12-07 00:45:45,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-07 00:45:45,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:45,493 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:45,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:45:45,493 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:45,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:45,493 INFO L85 PathProgramCache]: Analyzing trace with hash 502767354, now seen corresponding path program 1 times [2021-12-07 00:45:45,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:45,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774715781] [2021-12-07 00:45:45,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:45,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 00:45:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:45:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:45:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:45:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:45:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:45:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:45:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:45:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-07 00:45:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-07 00:45:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-07 00:45:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-07 00:45:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-07 00:45:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:45,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:45,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774715781] [2021-12-07 00:45:45,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774715781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:45,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:45,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:45,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264120954] [2021-12-07 00:45:45,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:45,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:45,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:45,600 INFO L87 Difference]: Start difference. First operand 7369 states and 12692 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:46,948 INFO L93 Difference]: Finished difference Result 18789 states and 32897 transitions. [2021-12-07 00:45:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:46,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2021-12-07 00:45:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:46,981 INFO L225 Difference]: With dead ends: 18789 [2021-12-07 00:45:46,982 INFO L226 Difference]: Without dead ends: 12559 [2021-12-07 00:45:46,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:46,997 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1709 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:46,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1727 Valid, 1686 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:47,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12559 states. [2021-12-07 00:45:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12559 to 12348. [2021-12-07 00:45:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12348 states, 10228 states have (on average 1.6559444661712945) internal successors, (16937), 10236 states have internal predecessors, (16937), 2086 states have call successors, (2086), 29 states have call predecessors, (2086), 33 states have return successors, (2281), 2084 states have call predecessors, (2281), 2085 states have call successors, (2281) [2021-12-07 00:45:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12348 states to 12348 states and 21304 transitions. [2021-12-07 00:45:47,610 INFO L78 Accepts]: Start accepts. Automaton has 12348 states and 21304 transitions. Word has length 176 [2021-12-07 00:45:47,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:47,610 INFO L470 AbstractCegarLoop]: Abstraction has 12348 states and 21304 transitions. [2021-12-07 00:45:47,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:47,611 INFO L276 IsEmpty]: Start isEmpty. Operand 12348 states and 21304 transitions. [2021-12-07 00:45:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-07 00:45:47,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:47,644 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:47,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:45:47,645 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:47,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 362107280, now seen corresponding path program 1 times [2021-12-07 00:45:47,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:47,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880292640] [2021-12-07 00:45:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:47,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:45:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-07 00:45:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:45:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-07 00:45:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:45:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-07 00:45:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 00:45:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:45:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-07 00:45:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-07 00:45:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:45:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-07 00:45:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:45:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-07 00:45:47,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:47,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880292640] [2021-12-07 00:45:47,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880292640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:47,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:47,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:47,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65505797] [2021-12-07 00:45:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:47,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:47,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:47,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:47,727 INFO L87 Difference]: Start difference. First operand 12348 states and 21304 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:49,409 INFO L93 Difference]: Finished difference Result 29747 states and 51862 transitions. [2021-12-07 00:45:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 177 [2021-12-07 00:45:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:49,468 INFO L225 Difference]: With dead ends: 29747 [2021-12-07 00:45:49,468 INFO L226 Difference]: Without dead ends: 19512 [2021-12-07 00:45:49,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:49,492 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 1672 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:49,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1691 Valid, 1687 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:45:49,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19512 states. [2021-12-07 00:45:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19512 to 19301. [2021-12-07 00:45:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19301 states, 15978 states have (on average 1.6321817499061209) internal successors, (26079), 15986 states have internal predecessors, (26079), 3289 states have call successors, (3289), 29 states have call predecessors, (3289), 33 states have return successors, (3628), 3287 states have call predecessors, (3628), 3288 states have call successors, (3628) [2021-12-07 00:45:50,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19301 states to 19301 states and 32996 transitions. [2021-12-07 00:45:50,301 INFO L78 Accepts]: Start accepts. Automaton has 19301 states and 32996 transitions. Word has length 177 [2021-12-07 00:45:50,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:50,301 INFO L470 AbstractCegarLoop]: Abstraction has 19301 states and 32996 transitions. [2021-12-07 00:45:50,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:45:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 19301 states and 32996 transitions. [2021-12-07 00:45:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-07 00:45:50,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:50,338 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:50,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:45:50,339 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1391683992, now seen corresponding path program 1 times [2021-12-07 00:45:50,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:50,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198290575] [2021-12-07 00:45:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:50,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-07 00:45:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:45:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:45:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 00:45:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:45:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-07 00:45:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:45:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:45:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:45:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-07 00:45:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 00:45:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-07 00:45:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-07 00:45:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-07 00:45:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-07 00:45:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-07 00:45:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:50,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:50,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198290575] [2021-12-07 00:45:50,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198290575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:50,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:50,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:50,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530668770] [2021-12-07 00:45:50,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:50,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:50,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:50,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:50,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:50,425 INFO L87 Difference]: Start difference. First operand 19301 states and 32996 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:52,576 INFO L93 Difference]: Finished difference Result 51179 states and 88982 transitions. [2021-12-07 00:45:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 197 [2021-12-07 00:45:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:52,672 INFO L225 Difference]: With dead ends: 51179 [2021-12-07 00:45:52,673 INFO L226 Difference]: Without dead ends: 34633 [2021-12-07 00:45:52,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:52,708 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 1745 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:52,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1763 Valid, 1672 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:45:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34633 states. [2021-12-07 00:45:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34633 to 34422. [2021-12-07 00:45:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34422 states, 28649 states have (on average 1.6294460539634892) internal successors, (46682), 28657 states have internal predecessors, (46682), 5739 states have call successors, (5739), 29 states have call predecessors, (5739), 33 states have return successors, (6352), 5737 states have call predecessors, (6352), 5738 states have call successors, (6352) [2021-12-07 00:45:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34422 states to 34422 states and 58773 transitions. [2021-12-07 00:45:54,129 INFO L78 Accepts]: Start accepts. Automaton has 34422 states and 58773 transitions. Word has length 197 [2021-12-07 00:45:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:54,129 INFO L470 AbstractCegarLoop]: Abstraction has 34422 states and 58773 transitions. [2021-12-07 00:45:54,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 34422 states and 58773 transitions. [2021-12-07 00:45:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-07 00:45:54,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:54,183 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:54,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:45:54,183 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:45:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash 809251785, now seen corresponding path program 1 times [2021-12-07 00:45:54,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:54,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780898062] [2021-12-07 00:45:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:54,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:45:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:45:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:45:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:45:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:45:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:45:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:45:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:45:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-07 00:45:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:45:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-07 00:45:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:45:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 00:45:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-07 00:45:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:45:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 00:45:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:45:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-07 00:45:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-07 00:45:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:45:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-07 00:45:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-07 00:45:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:45:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:45:54,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:54,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780898062] [2021-12-07 00:45:54,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780898062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:54,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:54,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:45:54,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543134827] [2021-12-07 00:45:54,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:54,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:45:54,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:54,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:45:54,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:45:54,367 INFO L87 Difference]: Start difference. First operand 34422 states and 58773 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:45:57,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:57,515 INFO L93 Difference]: Finished difference Result 94051 states and 162776 transitions. [2021-12-07 00:45:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:45:57,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2021-12-07 00:45:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:57,663 INFO L225 Difference]: With dead ends: 94051 [2021-12-07 00:45:57,663 INFO L226 Difference]: Without dead ends: 63300 [2021-12-07 00:45:57,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:45:57,711 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1691 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:57,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1710 Valid, 1685 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:45:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63300 states. [2021-12-07 00:45:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63300 to 63089. [2021-12-07 00:46:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63089 states, 52803 states have (on average 1.6255326401908983) internal successors, (85833), 52811 states have internal predecessors, (85833), 10252 states have call successors, (10252), 29 states have call predecessors, (10252), 33 states have return successors, (11397), 10250 states have call predecessors, (11397), 10251 states have call successors, (11397) [2021-12-07 00:46:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63089 states to 63089 states and 107482 transitions. [2021-12-07 00:46:00,177 INFO L78 Accepts]: Start accepts. Automaton has 63089 states and 107482 transitions. Word has length 198 [2021-12-07 00:46:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:46:00,178 INFO L470 AbstractCegarLoop]: Abstraction has 63089 states and 107482 transitions. [2021-12-07 00:46:00,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:46:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 63089 states and 107482 transitions. [2021-12-07 00:46:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-07 00:46:00,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:46:00,254 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:46:00,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:46:00,254 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:46:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:46:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 868498776, now seen corresponding path program 1 times [2021-12-07 00:46:00,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:46:00,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130407631] [2021-12-07 00:46:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:00,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:46:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:46:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:46:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:46:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:46:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:46:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:46:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:46:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-07 00:46:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-07 00:46:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:46:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-07 00:46:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-07 00:46:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 00:46:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:46:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-07 00:46:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-07 00:46:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 00:46:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:46:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 00:46:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:46:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:46:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 00:46:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-07 00:46:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:46:00,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:46:00,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130407631] [2021-12-07 00:46:00,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130407631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:46:00,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:46:00,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:46:00,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533389323] [2021-12-07 00:46:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:46:00,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:46:00,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:46:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:46:00,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:46:00,338 INFO L87 Difference]: Start difference. First operand 63089 states and 107482 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:46:05,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:46:05,280 INFO L93 Difference]: Finished difference Result 118427 states and 205410 transitions. [2021-12-07 00:46:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:46:05,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 199 [2021-12-07 00:46:05,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:46:05,567 INFO L225 Difference]: With dead ends: 118427 [2021-12-07 00:46:05,567 INFO L226 Difference]: Without dead ends: 118173 [2021-12-07 00:46:05,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:46:05,593 INFO L933 BasicCegarLoop]: 757 mSDtfsCounter, 1756 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:46:05,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1775 Valid, 1661 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:46:05,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118173 states. [2021-12-07 00:46:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118173 to 117962. [2021-12-07 00:46:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117962 states, 99308 states have (on average 1.6204535384863255) internal successors, (160924), 99316 states have internal predecessors, (160924), 18620 states have call successors, (18620), 29 states have call predecessors, (18620), 33 states have return successors, (20811), 18618 states have call predecessors, (20811), 18619 states have call successors, (20811) [2021-12-07 00:46:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117962 states to 117962 states and 200355 transitions. [2021-12-07 00:46:10,171 INFO L78 Accepts]: Start accepts. Automaton has 117962 states and 200355 transitions. Word has length 199 [2021-12-07 00:46:10,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:46:10,171 INFO L470 AbstractCegarLoop]: Abstraction has 117962 states and 200355 transitions. [2021-12-07 00:46:10,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:46:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 117962 states and 200355 transitions. [2021-12-07 00:46:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-07 00:46:10,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:46:10,277 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:46:10,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:46:10,277 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:46:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:46:10,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1756589046, now seen corresponding path program 1 times [2021-12-07 00:46:10,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:46:10,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934581451] [2021-12-07 00:46:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:10,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:46:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:46:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:46:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:46:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:46:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:46:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:46:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:46:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:46:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:46:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:46:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-07 00:46:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 00:46:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:46:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:46:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-07 00:46:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-07 00:46:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-07 00:46:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:46:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-07 00:46:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:46:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-07 00:46:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:46:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-07 00:46:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:46:10,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:46:10,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934581451] [2021-12-07 00:46:10,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934581451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:46:10,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:46:10,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 00:46:10,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331394773] [2021-12-07 00:46:10,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:46:10,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 00:46:10,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:46:10,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 00:46:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:46:10,390 INFO L87 Difference]: Start difference. First operand 117962 states and 200355 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:46:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:46:19,681 INFO L93 Difference]: Finished difference Result 227338 states and 393920 transitions. [2021-12-07 00:46:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-07 00:46:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 200 [2021-12-07 00:46:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:46:20,403 INFO L225 Difference]: With dead ends: 227338 [2021-12-07 00:46:20,404 INFO L226 Difference]: Without dead ends: 227092 [2021-12-07 00:46:20,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2021-12-07 00:46:20,461 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 3721 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 1737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 5436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1737 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:46:20,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3739 Valid, 2712 Invalid, 5436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1737 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-07 00:46:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227092 states. [2021-12-07 00:46:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227092 to 226656. [2021-12-07 00:46:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226656 states, 190851 states have (on average 1.6237798072842164) internal successors, (309900), 190807 states have internal predecessors, (309900), 35742 states have call successors, (35742), 57 states have call predecessors, (35742), 62 states have return successors, (39025), 35795 states have call predecessors, (39025), 35740 states have call successors, (39025) [2021-12-07 00:46:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226656 states to 226656 states and 384667 transitions. [2021-12-07 00:46:29,926 INFO L78 Accepts]: Start accepts. Automaton has 226656 states and 384667 transitions. Word has length 200 [2021-12-07 00:46:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:46:29,926 INFO L470 AbstractCegarLoop]: Abstraction has 226656 states and 384667 transitions. [2021-12-07 00:46:29,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-07 00:46:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 226656 states and 384667 transitions. [2021-12-07 00:46:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-07 00:46:30,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:46:30,090 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:46:30,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:46:30,090 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:46:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:46:30,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1965955429, now seen corresponding path program 1 times [2021-12-07 00:46:30,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:46:30,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715006452] [2021-12-07 00:46:30,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:30,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:46:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:46:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:46:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:46:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:46:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:46:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:46:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:46:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:46:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:46:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:46:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:46:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:46:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 00:46:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-07 00:46:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 00:46:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:46:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 00:46:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:46:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:46:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:46:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 00:46:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-07 00:46:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-07 00:46:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:46:30,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:46:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715006452] [2021-12-07 00:46:30,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715006452] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:46:30,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:46:30,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 00:46:30,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722582484] [2021-12-07 00:46:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:46:30,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:46:30,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:46:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:46:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:46:30,453 INFO L87 Difference]: Start difference. First operand 226656 states and 384667 transitions. Second operand has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 8 states have internal predecessors, (123), 6 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-12-07 00:46:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:46:39,670 INFO L93 Difference]: Finished difference Result 227634 states and 392408 transitions. [2021-12-07 00:46:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-07 00:46:39,671 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 8 states have internal predecessors, (123), 6 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 201 [2021-12-07 00:46:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:46:40,310 INFO L225 Difference]: With dead ends: 227634 [2021-12-07 00:46:40,310 INFO L226 Difference]: Without dead ends: 227116 [2021-12-07 00:46:40,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 00:46:40,368 INFO L933 BasicCegarLoop]: 709 mSDtfsCounter, 2457 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 1210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 5930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1210 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:46:40,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2476 Valid, 3294 Invalid, 5930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1210 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-07 00:46:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227116 states. [2021-12-07 00:46:49,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227116 to 226701. [2021-12-07 00:46:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226701 states, 190881 states have (on average 1.6237393978447305) internal successors, (309941), 190840 states have internal predecessors, (309941), 35755 states have call successors, (35755), 59 states have call predecessors, (35755), 64 states have return successors, (39036), 35805 states have call predecessors, (39036), 35749 states have call successors, (39036) [2021-12-07 00:46:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226701 states to 226701 states and 384732 transitions. [2021-12-07 00:46:50,218 INFO L78 Accepts]: Start accepts. Automaton has 226701 states and 384732 transitions. Word has length 201 [2021-12-07 00:46:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:46:50,218 INFO L470 AbstractCegarLoop]: Abstraction has 226701 states and 384732 transitions. [2021-12-07 00:46:50,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 8 states have internal predecessors, (123), 6 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-12-07 00:46:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 226701 states and 384732 transitions. [2021-12-07 00:46:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-07 00:46:50,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:46:50,383 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:46:50,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:46:50,383 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:46:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:46:50,383 INFO L85 PathProgramCache]: Analyzing trace with hash 299735273, now seen corresponding path program 1 times [2021-12-07 00:46:50,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:46:50,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719509698] [2021-12-07 00:46:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:50,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:46:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:46:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:46:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:46:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:46:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:46:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:46:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:46:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:46:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:46:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:46:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:46:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:46:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-07 00:46:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:46:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 00:46:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:46:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:46:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:46:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-07 00:46:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-07 00:46:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 00:46:50,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:46:50,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719509698] [2021-12-07 00:46:50,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719509698] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:46:50,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959298298] [2021-12-07 00:46:50,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:50,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:46:50,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:46:50,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:46:50,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 00:46:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:50,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 00:46:50,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:46:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-07 00:46:50,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:46:51,261 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-07 00:46:51,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959298298] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:46:51,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:46:51,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2021-12-07 00:46:51,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166643341] [2021-12-07 00:46:51,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:46:51,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-07 00:46:51,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:46:51,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-07 00:46:51,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2021-12-07 00:46:51,263 INFO L87 Difference]: Start difference. First operand 226701 states and 384732 transitions. Second operand has 32 states, 30 states have (on average 9.266666666666667) internal successors, (278), 24 states have internal predecessors, (278), 9 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) [2021-12-07 00:47:57,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:57,143 INFO L93 Difference]: Finished difference Result 1358903 states and 2406199 transitions. [2021-12-07 00:47:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-12-07 00:47:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 9.266666666666667) internal successors, (278), 24 states have internal predecessors, (278), 9 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) Word has length 181 [2021-12-07 00:47:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:48:02,246 INFO L225 Difference]: With dead ends: 1358903 [2021-12-07 00:48:02,246 INFO L226 Difference]: Without dead ends: 1358380 [2021-12-07 00:48:02,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11443 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3987, Invalid=28955, Unknown=0, NotChecked=0, Total=32942 [2021-12-07 00:48:02,806 INFO L933 BasicCegarLoop]: 1852 mSDtfsCounter, 11108 mSDsluCounter, 15602 mSDsCounter, 0 mSdLazyCounter, 43412 mSolverCounterSat, 11570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11140 SdHoareTripleChecker+Valid, 17454 SdHoareTripleChecker+Invalid, 54982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11570 IncrementalHoareTripleChecker+Valid, 43412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:48:02,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11140 Valid, 17454 Invalid, 54982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11570 Valid, 43412 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2021-12-07 00:48:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358380 states. [2021-12-07 00:48:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358380 to 904647. [2021-12-07 00:48:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904647 states, 761701 states have (on average 1.6237539401943808) internal successors, (1236815), 761275 states have internal predecessors, (1236815), 142564 states have call successors, (142564), 324 states have call predecessors, (142564), 381 states have return successors, (192967), 143079 states have call predecessors, (192967), 142528 states have call successors, (192967) [2021-12-07 00:49:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904647 states to 904647 states and 1572346 transitions. [2021-12-07 00:49:02,478 INFO L78 Accepts]: Start accepts. Automaton has 904647 states and 1572346 transitions. Word has length 181 [2021-12-07 00:49:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:02,479 INFO L470 AbstractCegarLoop]: Abstraction has 904647 states and 1572346 transitions. [2021-12-07 00:49:02,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 9.266666666666667) internal successors, (278), 24 states have internal predecessors, (278), 9 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) [2021-12-07 00:49:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 904647 states and 1572346 transitions. [2021-12-07 00:49:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-07 00:49:03,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:03,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:03,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 00:49:03,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-07 00:49:03,792 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:03,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1468741148, now seen corresponding path program 1 times [2021-12-07 00:49:03,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:49:03,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214502694] [2021-12-07 00:49:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:03,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:49:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:49:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:49:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:49:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:49:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 00:49:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 00:49:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-07 00:49:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 00:49:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:49:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-07 00:49:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:49:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:49:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:49:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-07 00:49:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:49:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 00:49:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:49:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-07 00:49:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:49:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-07 00:49:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 00:49:03,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:49:03,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214502694] [2021-12-07 00:49:03,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214502694] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:49:03,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338828772] [2021-12-07 00:49:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:03,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:49:03,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:49:03,913 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:49:03,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 00:49:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:04,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 00:49:04,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-07 00:49:04,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:49:04,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338828772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:04,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:49:04,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2021-12-07 00:49:04,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773452712] [2021-12-07 00:49:04,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:04,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:49:04,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:49:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:49:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:49:04,273 INFO L87 Difference]: Start difference. First operand 904647 states and 1572346 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:49:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:39,213 INFO L93 Difference]: Finished difference Result 908477 states and 1577909 transitions. [2021-12-07 00:49:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:49:39,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 183 [2021-12-07 00:49:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:42,574 INFO L225 Difference]: With dead ends: 908477 [2021-12-07 00:49:42,574 INFO L226 Difference]: Without dead ends: 904671 [2021-12-07 00:49:42,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:49:42,842 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 688 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:49:42,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 4535 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:49:43,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904671 states. [2021-12-07 00:50:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904671 to 904671. [2021-12-07 00:50:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904671 states, 761713 states have (on average 1.6237441135965909) internal successors, (1236827), 761299 states have internal predecessors, (1236827), 142564 states have call successors, (142564), 324 states have call predecessors, (142564), 393 states have return successors, (192995), 143079 states have call predecessors, (192995), 142528 states have call successors, (192995) [2021-12-07 00:50:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904671 states to 904671 states and 1572386 transitions. [2021-12-07 00:50:32,287 INFO L78 Accepts]: Start accepts. Automaton has 904671 states and 1572386 transitions. Word has length 183 [2021-12-07 00:50:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:50:32,287 INFO L470 AbstractCegarLoop]: Abstraction has 904671 states and 1572386 transitions. [2021-12-07 00:50:32,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:50:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 904671 states and 1572386 transitions. [2021-12-07 00:50:33,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-07 00:50:33,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:50:33,424 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:50:33,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 00:50:33,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:50:33,625 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:50:33,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:50:33,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1277176868, now seen corresponding path program 1 times [2021-12-07 00:50:33,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:50:33,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596575192] [2021-12-07 00:50:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:33,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:50:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:50:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:50:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:50:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:50:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:50:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:50:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-07 00:50:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:50:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:50:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-07 00:50:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:50:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:50:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:50:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-07 00:50:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 00:50:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 00:50:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:50:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-07 00:50:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 00:50:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-07 00:50:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 00:50:33,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:50:33,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596575192] [2021-12-07 00:50:33,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596575192] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:50:33,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085583459] [2021-12-07 00:50:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:50:33,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:50:33,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:50:33,745 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:50:33,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370cdc65-e91d-4804-90c2-b32be197e734/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 00:50:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:50:33,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:50:33,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:50:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-07 00:50:34,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:50:34,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085583459] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:50:34,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:50:34,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-07 00:50:34,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255151511] [2021-12-07 00:50:34,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:50:34,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:50:34,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:50:34,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:50:34,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:50:34,155 INFO L87 Difference]: Start difference. First operand 904671 states and 1572386 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)