./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF --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 b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:53:46,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:53:46,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:53:46,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:53:46,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:53:46,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:53:46,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:53:46,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:53:46,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:53:46,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:53:46,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:53:46,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:53:46,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:53:46,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:53:46,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:53:46,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:53:46,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:53:46,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:53:46,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:53:46,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:53:46,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:53:46,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:53:46,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:53:46,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:53:46,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:53:46,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:53:46,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:53:46,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:53:46,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:53:46,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:53:46,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:53:46,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:53:46,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:53:46,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:53:46,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:53:46,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:53:46,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:53:46,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:53:46,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:53:46,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:53:46,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:53:46,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:53:46,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:53:46,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:53:46,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:53:46,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:53:46,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:53:46,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:53:46,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:53:46,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:53:46,401 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:53:46,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:53:46,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:53:46,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:53:46,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:53:46,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:53:46,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:53:46,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:53:46,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:53:46,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:53:46,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:53:46,405 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:53:46,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:53:46,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:53:46,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:53:46,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:53:46,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:53:46,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:53:46,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:53:46,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:53:46,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:53:46,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:53:46,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:53:46,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:53:46,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:53:46,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:53:46,411 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_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 [2021-11-20 06:53:46,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:53:46,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:53:46,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:53:46,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:53:46,825 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:53:46,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2021-11-20 06:53:46,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/data/5ab309f6d/0318e159bee040998d8f4dd97881fd9f/FLAG6eac2d57b [2021-11-20 06:53:47,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:53:47,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2021-11-20 06:53:47,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/data/5ab309f6d/0318e159bee040998d8f4dd97881fd9f/FLAG6eac2d57b [2021-11-20 06:53:47,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/data/5ab309f6d/0318e159bee040998d8f4dd97881fd9f [2021-11-20 06:53:47,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:53:47,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:53:47,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:53:47,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:53:47,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:53:47,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:53:47" (1/1) ... [2021-11-20 06:53:47,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d86da55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:47, skipping insertion in model container [2021-11-20 06:53:47,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:53:47" (1/1) ... [2021-11-20 06:53:47,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:53:47,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:53:48,443 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_fab7c88c-5160-4757-88d5-5eed745349ea/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c[8145,8158] [2021-11-20 06:53:48,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:53:48,914 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:53:48,968 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_fab7c88c-5160-4757-88d5-5eed745349ea/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c[8145,8158] [2021-11-20 06:53:49,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:53:49,147 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:53:49,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49 WrapperNode [2021-11-20 06:53:49,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:53:49,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:53:49,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:53:49,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:53:49,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,313 INFO L137 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2021-11-20 06:53:49,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:53:49,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:53:49,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:53:49,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:53:49,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:53:49,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:53:49,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:53:49,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:53:49,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (1/1) ... [2021-11-20 06:53:49,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:53:49,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:49,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:53:49,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:53:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-11-20 06:53:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-11-20 06:53:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-20 06:53:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-20 06:53:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-11-20 06:53:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-11-20 06:53:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-20 06:53:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-20 06:53:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-20 06:53:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-20 06:53:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-20 06:53:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-20 06:53:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-20 06:53:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-20 06:53:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-20 06:53:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-20 06:53:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-20 06:53:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-20 06:53:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-20 06:53:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-20 06:53:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-20 06:53:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:53:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-11-20 06:53:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-11-20 06:53:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-20 06:53:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-20 06:53:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-20 06:53:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-20 06:53:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-20 06:53:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-20 06:53:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-11-20 06:53:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-11-20 06:53:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-20 06:53:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-20 06:53:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-20 06:53:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-20 06:53:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-20 06:53:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-20 06:53:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-20 06:53:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-20 06:53:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:53:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-20 06:53:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-20 06:53:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-11-20 06:53:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-11-20 06:53:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:53:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:53:49,898 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:53:49,901 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:53:50,890 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:53:50,920 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:53:50,920 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:53:50,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:53:50 BoogieIcfgContainer [2021-11-20 06:53:50,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:53:50,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:53:50,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:53:50,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:53:50,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:53:47" (1/3) ... [2021-11-20 06:53:50,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999eef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:53:50, skipping insertion in model container [2021-11-20 06:53:50,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:49" (2/3) ... [2021-11-20 06:53:50,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999eef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:53:50, skipping insertion in model container [2021-11-20 06:53:50,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:53:50" (3/3) ... [2021-11-20 06:53:50,936 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2021-11-20 06:53:50,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:53:50,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:53:51,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:53:51,055 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 [2021-11-20 06:53:51,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:53:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2021-11-20 06:53:51,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 06:53:51,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:51,149 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:51,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash 363460128, now seen corresponding path program 1 times [2021-11-20 06:53:51,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:51,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132468713] [2021-11-20 06:53:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:51,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:53:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:53:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:53:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 06:53:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 06:53:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:53:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:53:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:53:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:53:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 06:53:51,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:51,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132468713] [2021-11-20 06:53:51,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132468713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:51,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733940209] [2021-11-20 06:53:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:51,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:51,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:51,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:53:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:51,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:53:51,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:53:52,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:52,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733940209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:52,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:52,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-11-20 06:53:52,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370801111] [2021-11-20 06:53:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:52,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:53:52,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:52,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:53:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:53:52,312 INFO L87 Difference]: Start difference. First operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:52,415 INFO L93 Difference]: Finished difference Result 498 states and 756 transitions. [2021-11-20 06:53:52,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:53:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-11-20 06:53:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:52,456 INFO L225 Difference]: With dead ends: 498 [2021-11-20 06:53:52,456 INFO L226 Difference]: Without dead ends: 336 [2021-11-20 06:53:52,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:53:52,471 INFO L933 BasicCegarLoop]: 525 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, 525 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 [2021-11-20 06:53:52,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-11-20 06:53:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2021-11-20 06:53:52,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 262 states have (on average 1.5801526717557253) internal successors, (414), 266 states have internal predecessors, (414), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-20 06:53:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 517 transitions. [2021-11-20 06:53:52,592 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 517 transitions. Word has length 98 [2021-11-20 06:53:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:52,594 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 517 transitions. [2021-11-20 06:53:52,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 517 transitions. [2021-11-20 06:53:52,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 06:53:52,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:52,612 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:52,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:52,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 06:53:52,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:52,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1382784013, now seen corresponding path program 1 times [2021-11-20 06:53:52,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:52,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970217201] [2021-11-20 06:53:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:52,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:53:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:53:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:53:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:53:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:53:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:53:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:53:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:53:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:53:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 06:53:53,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:53,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970217201] [2021-11-20 06:53:53,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970217201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113494651] [2021-11-20 06:53:53,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:53,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:53,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:53,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:53,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:53:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:53,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:53:53,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:53:53,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113494651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:53,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-20 06:53:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144407272] [2021-11-20 06:53:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:53,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:53:53,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:53:53,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:53:53,708 INFO L87 Difference]: Start difference. First operand 336 states and 517 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:53,780 INFO L93 Difference]: Finished difference Result 488 states and 734 transitions. [2021-11-20 06:53:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:53:53,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-11-20 06:53:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:53,787 INFO L225 Difference]: With dead ends: 488 [2021-11-20 06:53:53,787 INFO L226 Difference]: Without dead ends: 339 [2021-11-20 06:53:53,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:53:53,791 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1028 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 [2021-11-20 06:53:53,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1028 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-20 06:53:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 338. [2021-11-20 06:53:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 264 states have (on average 1.5757575757575757) internal successors, (416), 268 states have internal predecessors, (416), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-20 06:53:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2021-11-20 06:53:53,832 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 99 [2021-11-20 06:53:53,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:53,832 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2021-11-20 06:53:53,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2021-11-20 06:53:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-20 06:53:53,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:53,836 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:53:53,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:54,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:54,058 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1526113252, now seen corresponding path program 1 times [2021-11-20 06:53:54,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:54,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106198202] [2021-11-20 06:53:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:54,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:53:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:53:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:53:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 06:53:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-20 06:53:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:53:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:53:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:53:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:53:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:53:54,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:54,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106198202] [2021-11-20 06:53:54,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106198202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:54,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5107261] [2021-11-20 06:53:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:54,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:54,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:54,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:54,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:53:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:54,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:53:54,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:53:54,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:54,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5107261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:54,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:54,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-20 06:53:54,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154889795] [2021-11-20 06:53:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:54,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:53:54,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:54,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:53:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:53:54,844 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:54,917 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2021-11-20 06:53:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:53:54,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-11-20 06:53:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:54,925 INFO L225 Difference]: With dead ends: 719 [2021-11-20 06:53:54,925 INFO L226 Difference]: Without dead ends: 408 [2021-11-20 06:53:54,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:53:54,930 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1012 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 [2021-11-20 06:53:54,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1012 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:54,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-11-20 06:53:54,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2021-11-20 06:53:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 316 states have internal predecessors, (497), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-11-20 06:53:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 628 transitions. [2021-11-20 06:53:54,977 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 628 transitions. Word has length 105 [2021-11-20 06:53:54,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:54,979 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 628 transitions. [2021-11-20 06:53:54,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 628 transitions. [2021-11-20 06:53:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-20 06:53:54,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:54,992 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:53:55,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:55,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:55,212 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:55,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1151846179, now seen corresponding path program 1 times [2021-11-20 06:53:55,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:55,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443603588] [2021-11-20 06:53:55,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:55,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:53:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:53:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:53:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:53:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:53:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:53:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:53:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:53:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:53:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:53:55,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:55,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443603588] [2021-11-20 06:53:55,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443603588] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:55,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250106466] [2021-11-20 06:53:55,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:55,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:55,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:55,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:55,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:53:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:55,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:53:55,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:53:55,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:55,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250106466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:55,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:55,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-20 06:53:55,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732973860] [2021-11-20 06:53:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:55,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:53:55,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:55,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:53:55,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:53:55,903 INFO L87 Difference]: Start difference. First operand 400 states and 628 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:56,007 INFO L93 Difference]: Finished difference Result 791 states and 1246 transitions. [2021-11-20 06:53:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:53:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2021-11-20 06:53:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:56,012 INFO L225 Difference]: With dead ends: 791 [2021-11-20 06:53:56,013 INFO L226 Difference]: Without dead ends: 402 [2021-11-20 06:53:56,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:53:56,018 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 144 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1866 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 [2021-11-20 06:53:56,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1866 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-20 06:53:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2021-11-20 06:53:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 313 states have (on average 1.5910543130990416) internal successors, (498), 318 states have internal predecessors, (498), 66 states have call successors, (66), 21 states have call predecessors, (66), 22 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2021-11-20 06:53:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 631 transitions. [2021-11-20 06:53:56,051 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 631 transitions. Word has length 106 [2021-11-20 06:53:56,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:56,051 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 631 transitions. [2021-11-20 06:53:56,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 631 transitions. [2021-11-20 06:53:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 06:53:56,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:56,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-11-20 06:53:56,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:56,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:56,268 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:56,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash 800636676, now seen corresponding path program 1 times [2021-11-20 06:53:56,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:56,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815446303] [2021-11-20 06:53:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:56,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:53:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 06:53:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:53:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 06:53:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:53:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:53:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 06:53:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:53:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:53:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:53:56,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:56,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815446303] [2021-11-20 06:53:56,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815446303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:53:56,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067390804] [2021-11-20 06:53:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:56,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:56,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:53:56,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:53:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:56,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:53:56,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:53:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:53:57,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:53:57,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067390804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:57,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:53:57,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-11-20 06:53:57,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252743777] [2021-11-20 06:53:57,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:57,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:53:57,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:57,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:53:57,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:53:57,049 INFO L87 Difference]: Start difference. First operand 402 states and 631 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:57,142 INFO L93 Difference]: Finished difference Result 793 states and 1251 transitions. [2021-11-20 06:53:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:53:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2021-11-20 06:53:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:57,147 INFO L225 Difference]: With dead ends: 793 [2021-11-20 06:53:57,148 INFO L226 Difference]: Without dead ends: 404 [2021-11-20 06:53:57,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:53:57,151 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 143 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1855 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 [2021-11-20 06:53:57,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1855 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:53:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-11-20 06:53:57,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2021-11-20 06:53:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-11-20 06:53:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 637 transitions. [2021-11-20 06:53:57,180 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 637 transitions. Word has length 107 [2021-11-20 06:53:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:57,181 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 637 transitions. [2021-11-20 06:53:57,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 637 transitions. [2021-11-20 06:53:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:53:57,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:57,185 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:57,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:53:57,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:53:57,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1770342286, now seen corresponding path program 1 times [2021-11-20 06:53:57,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:57,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630269976] [2021-11-20 06:53:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:57,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:53:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:53:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 06:53:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 06:53:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:53:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:53:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:53:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 06:53:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 06:53:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:53:57,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:57,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630269976] [2021-11-20 06:53:57,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630269976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:57,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:57,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:53:57,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985828018] [2021-11-20 06:53:57,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:57,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:53:57,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:57,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:53:57,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:53:57,571 INFO L87 Difference]: Start difference. First operand 404 states and 637 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:53:59,395 INFO L93 Difference]: Finished difference Result 867 states and 1386 transitions. [2021-11-20 06:53:59,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:53:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2021-11-20 06:53:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:53:59,403 INFO L225 Difference]: With dead ends: 867 [2021-11-20 06:53:59,404 INFO L226 Difference]: Without dead ends: 486 [2021-11-20 06:53:59,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:53:59,407 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1209 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:53:59,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 1695 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 06:53:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-11-20 06:53:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 404. [2021-11-20 06:53:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2021-11-20 06:53:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 636 transitions. [2021-11-20 06:53:59,462 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 636 transitions. Word has length 108 [2021-11-20 06:53:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:53:59,464 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 636 transitions. [2021-11-20 06:53:59,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:53:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 636 transitions. [2021-11-20 06:53:59,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 06:53:59,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:59,476 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:59,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:53:59,477 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 954565969, now seen corresponding path program 2 times [2021-11-20 06:53:59,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:59,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269467221] [2021-11-20 06:53:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:59,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:53:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:53:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:53:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:53:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:53:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 06:53:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:53:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 06:53:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:53:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:53:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-20 06:53:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-20 06:53:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:53:59,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269467221] [2021-11-20 06:53:59,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269467221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:59,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:59,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:53:59,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701495261] [2021-11-20 06:53:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:59,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:53:59,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:59,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:53:59,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:53:59,640 INFO L87 Difference]: Start difference. First operand 404 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:54:01,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:01,371 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2021-11-20 06:54:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:54:01,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-11-20 06:54:01,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:01,378 INFO L225 Difference]: With dead ends: 869 [2021-11-20 06:54:01,378 INFO L226 Difference]: Without dead ends: 488 [2021-11-20 06:54:01,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:54:01,381 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1204 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:01,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 1687 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 06:54:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-20 06:54:01,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-11-20 06:54:01,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-11-20 06:54:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2021-11-20 06:54:01,420 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 109 [2021-11-20 06:54:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:01,420 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2021-11-20 06:54:01,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:54:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2021-11-20 06:54:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 06:54:01,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:01,424 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:01,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:54:01,424 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:01,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash 245616583, now seen corresponding path program 1 times [2021-11-20 06:54:01,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:01,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121419173] [2021-11-20 06:54:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:01,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-20 06:54:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:54:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:54:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:54:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:54:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:54:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:54:01,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:01,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121419173] [2021-11-20 06:54:01,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121419173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:01,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:01,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:54:01,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120003608] [2021-11-20 06:54:01,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:01,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:54:01,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:54:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:54:01,590 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:54:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:03,288 INFO L93 Difference]: Finished difference Result 869 states and 1388 transitions. [2021-11-20 06:54:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:54:03,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-11-20 06:54:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:03,296 INFO L225 Difference]: With dead ends: 869 [2021-11-20 06:54:03,296 INFO L226 Difference]: Without dead ends: 488 [2021-11-20 06:54:03,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:54:03,299 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1205 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:03,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 1695 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 06:54:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-20 06:54:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-11-20 06:54:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-11-20 06:54:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2021-11-20 06:54:03,336 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 110 [2021-11-20 06:54:03,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:03,337 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2021-11-20 06:54:03,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:54:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2021-11-20 06:54:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 06:54:03,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:03,340 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:03,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:54:03,341 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:03,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash -641606263, now seen corresponding path program 1 times [2021-11-20 06:54:03,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:03,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764759487] [2021-11-20 06:54:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:03,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-20 06:54:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:54:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:54:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:54:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:54:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:54:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:54:03,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764759487] [2021-11-20 06:54:03,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764759487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:03,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:03,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:54:03,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300888114] [2021-11-20 06:54:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:03,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:54:03,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:54:03,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:54:03,521 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:54:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:05,804 INFO L93 Difference]: Finished difference Result 867 states and 1383 transitions. [2021-11-20 06:54:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:54:05,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2021-11-20 06:54:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:05,811 INFO L225 Difference]: With dead ends: 867 [2021-11-20 06:54:05,811 INFO L226 Difference]: Without dead ends: 488 [2021-11-20 06:54:05,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:54:05,814 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 1336 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 2796 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 3259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:05,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 2202 Invalid, 3259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2796 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 06:54:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-20 06:54:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-11-20 06:54:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-11-20 06:54:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2021-11-20 06:54:05,861 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 110 [2021-11-20 06:54:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:05,862 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2021-11-20 06:54:05,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:54:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2021-11-20 06:54:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-20 06:54:05,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:05,866 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:05,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:54:05,866 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 78260293, now seen corresponding path program 2 times [2021-11-20 06:54:05,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:05,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72157362] [2021-11-20 06:54:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:05,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:54:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:54:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:54:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:54:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:54:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 06:54:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:54:06,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:06,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72157362] [2021-11-20 06:54:06,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72157362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:06,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:06,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:54:06,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660008421] [2021-11-20 06:54:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:06,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:54:06,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:06,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:54:06,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:54:06,061 INFO L87 Difference]: Start difference. First operand 406 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:54:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:08,359 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2021-11-20 06:54:08,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:54:08,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2021-11-20 06:54:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:08,364 INFO L225 Difference]: With dead ends: 869 [2021-11-20 06:54:08,364 INFO L226 Difference]: Without dead ends: 490 [2021-11-20 06:54:08,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:54:08,367 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1327 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:08,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 2219 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 06:54:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-11-20 06:54:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 408. [2021-11-20 06:54:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 316 states have (on average 1.5854430379746836) internal successors, (501), 324 states have internal predecessors, (501), 66 states have call successors, (66), 21 states have call predecessors, (66), 25 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2021-11-20 06:54:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 644 transitions. [2021-11-20 06:54:08,403 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 644 transitions. Word has length 111 [2021-11-20 06:54:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:08,403 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 644 transitions. [2021-11-20 06:54:08,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:54:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 644 transitions. [2021-11-20 06:54:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 06:54:08,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:08,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:08,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:54:08,408 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:08,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1156653796, now seen corresponding path program 1 times [2021-11-20 06:54:08,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:08,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849230128] [2021-11-20 06:54:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:08,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:54:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:54:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:54:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:54:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:54:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:54:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:08,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:08,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849230128] [2021-11-20 06:54:08,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849230128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:54:08,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679289017] [2021-11-20 06:54:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:08,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:54:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:54:08,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:54:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:54:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:08,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:54:08,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:54:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:08,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:54:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:09,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679289017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:54:09,244 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:54:09,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-11-20 06:54:09,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567809846] [2021-11-20 06:54:09,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:54:09,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:54:09,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:09,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:54:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:54:09,247 INFO L87 Difference]: Start difference. First operand 408 states and 644 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 06:54:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:11,040 INFO L93 Difference]: Finished difference Result 1056 states and 1758 transitions. [2021-11-20 06:54:11,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:54:11,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2021-11-20 06:54:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:11,049 INFO L225 Difference]: With dead ends: 1056 [2021-11-20 06:54:11,049 INFO L226 Difference]: Without dead ends: 907 [2021-11-20 06:54:11,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:54:11,052 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 1660 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:11,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1717 Valid, 2085 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 06:54:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-11-20 06:54:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 801. [2021-11-20 06:54:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 630 states have (on average 1.6412698412698412) internal successors, (1034), 638 states have internal predecessors, (1034), 145 states have call successors, (145), 21 states have call predecessors, (145), 25 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2021-11-20 06:54:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1345 transitions. [2021-11-20 06:54:11,122 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1345 transitions. Word has length 112 [2021-11-20 06:54:11,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:11,122 INFO L470 AbstractCegarLoop]: Abstraction has 801 states and 1345 transitions. [2021-11-20 06:54:11,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 06:54:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1345 transitions. [2021-11-20 06:54:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 06:54:11,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:11,129 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:11,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:54:11,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fab7c88c-5160-4757-88d5-5eed745349ea/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 06:54:11,343 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:11,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:11,344 INFO L85 PathProgramCache]: Analyzing trace with hash -801695193, now seen corresponding path program 1 times [2021-11-20 06:54:11,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:11,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468485632] [2021-11-20 06:54:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:11,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:54:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:54:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:54:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:54:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 06:54:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:54:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:11,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:11,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468485632] [2021-11-20 06:54:11,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468485632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:11,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:11,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:11,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215387430] [2021-11-20 06:54:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:11,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:11,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:11,476 INFO L87 Difference]: Start difference. First operand 801 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:12,897 INFO L93 Difference]: Finished difference Result 2014 states and 3463 transitions. [2021-11-20 06:54:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-11-20 06:54:12,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:12,911 INFO L225 Difference]: With dead ends: 2014 [2021-11-20 06:54:12,912 INFO L226 Difference]: Without dead ends: 1281 [2021-11-20 06:54:12,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:12,917 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1199 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:12,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 1471 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 06:54:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2021-11-20 06:54:13,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1191. [2021-11-20 06:54:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 941 states have (on average 1.6514346439957492) internal successors, (1554), 949 states have internal predecessors, (1554), 224 states have call successors, (224), 21 states have call predecessors, (224), 25 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2021-11-20 06:54:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 2033 transitions. [2021-11-20 06:54:13,030 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 2033 transitions. Word has length 118 [2021-11-20 06:54:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:13,030 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 2033 transitions. [2021-11-20 06:54:13,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 2033 transitions. [2021-11-20 06:54:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-20 06:54:13,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:13,041 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:13,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:54:13,042 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:13,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:13,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1955977789, now seen corresponding path program 1 times [2021-11-20 06:54:13,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:13,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275099721] [2021-11-20 06:54:13,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:13,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:54:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:54:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:54:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:54:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:54:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 06:54:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:13,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:13,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275099721] [2021-11-20 06:54:13,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275099721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:13,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:13,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276750084] [2021-11-20 06:54:13,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:13,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:13,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:13,196 INFO L87 Difference]: Start difference. First operand 1191 states and 2033 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:14,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:14,750 INFO L93 Difference]: Finished difference Result 2963 states and 5137 transitions. [2021-11-20 06:54:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:14,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-11-20 06:54:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:14,770 INFO L225 Difference]: With dead ends: 2963 [2021-11-20 06:54:14,770 INFO L226 Difference]: Without dead ends: 1893 [2021-11-20 06:54:14,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:14,780 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1196 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:14,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 1440 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:54:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2021-11-20 06:54:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1803. [2021-11-20 06:54:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1434 states have (on average 1.6576011157601116) internal successors, (2377), 1442 states have internal predecessors, (2377), 343 states have call successors, (343), 21 states have call predecessors, (343), 25 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2021-11-20 06:54:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 3094 transitions. [2021-11-20 06:54:14,937 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 3094 transitions. Word has length 119 [2021-11-20 06:54:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:14,938 INFO L470 AbstractCegarLoop]: Abstraction has 1803 states and 3094 transitions. [2021-11-20 06:54:14,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:14,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 3094 transitions. [2021-11-20 06:54:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 06:54:14,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:14,952 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:14,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:54:14,952 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:14,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:14,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1049418757, now seen corresponding path program 1 times [2021-11-20 06:54:14,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:14,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045777293] [2021-11-20 06:54:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:14,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:54:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:54:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 06:54:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:54:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 06:54:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 06:54:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:15,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:15,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045777293] [2021-11-20 06:54:15,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045777293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:15,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:15,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:15,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063807916] [2021-11-20 06:54:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:15,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:15,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:15,075 INFO L87 Difference]: Start difference. First operand 1803 states and 3094 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:16,302 INFO L93 Difference]: Finished difference Result 4388 states and 7671 transitions. [2021-11-20 06:54:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:16,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-11-20 06:54:16,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:16,331 INFO L225 Difference]: With dead ends: 4388 [2021-11-20 06:54:16,331 INFO L226 Difference]: Without dead ends: 2831 [2021-11-20 06:54:16,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:16,341 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1195 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:16,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1213 Valid, 1407 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:54:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2021-11-20 06:54:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2741. [2021-11-20 06:54:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2210 states have (on average 1.66289592760181) internal successors, (3675), 2218 states have internal predecessors, (3675), 505 states have call successors, (505), 21 states have call predecessors, (505), 25 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2021-11-20 06:54:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4732 transitions. [2021-11-20 06:54:16,574 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4732 transitions. Word has length 120 [2021-11-20 06:54:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:16,574 INFO L470 AbstractCegarLoop]: Abstraction has 2741 states and 4732 transitions. [2021-11-20 06:54:16,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4732 transitions. [2021-11-20 06:54:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-20 06:54:16,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:16,593 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:16,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:54:16,593 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1243441026, now seen corresponding path program 1 times [2021-11-20 06:54:16,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:16,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410065826] [2021-11-20 06:54:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:16,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:54:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:54:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:54:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 06:54:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:54:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:54:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:16,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:16,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410065826] [2021-11-20 06:54:16,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410065826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:16,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:16,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:16,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092945603] [2021-11-20 06:54:16,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:16,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:16,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:16,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:16,716 INFO L87 Difference]: Start difference. First operand 2741 states and 4732 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:18,072 INFO L93 Difference]: Finished difference Result 6637 states and 11680 transitions. [2021-11-20 06:54:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-11-20 06:54:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:18,114 INFO L225 Difference]: With dead ends: 6637 [2021-11-20 06:54:18,115 INFO L226 Difference]: Without dead ends: 4346 [2021-11-20 06:54:18,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:18,130 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1191 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:18,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 1414 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2021-11-20 06:54:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4256. [2021-11-20 06:54:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 3480 states have (on average 1.6666666666666667) internal successors, (5800), 3488 states have internal predecessors, (5800), 750 states have call successors, (750), 21 states have call predecessors, (750), 25 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2021-11-20 06:54:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 7373 transitions. [2021-11-20 06:54:18,539 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 7373 transitions. Word has length 121 [2021-11-20 06:54:18,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:18,539 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 7373 transitions. [2021-11-20 06:54:18,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:18,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 7373 transitions. [2021-11-20 06:54:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 06:54:18,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:18,559 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:18,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:54:18,560 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:18,560 INFO L85 PathProgramCache]: Analyzing trace with hash -523521271, now seen corresponding path program 1 times [2021-11-20 06:54:18,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:18,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825571958] [2021-11-20 06:54:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:18,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:54:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:54:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 06:54:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-20 06:54:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 06:54:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 06:54:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:18,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:18,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825571958] [2021-11-20 06:54:18,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825571958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:18,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:18,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:18,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179729032] [2021-11-20 06:54:18,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:18,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:18,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:18,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:18,679 INFO L87 Difference]: Start difference. First operand 4256 states and 7373 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:20,248 INFO L93 Difference]: Finished difference Result 10653 states and 18792 transitions. [2021-11-20 06:54:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:20,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-11-20 06:54:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:20,339 INFO L225 Difference]: With dead ends: 10653 [2021-11-20 06:54:20,339 INFO L226 Difference]: Without dead ends: 7079 [2021-11-20 06:54:20,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:20,356 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1193 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:20,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 1448 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2021-11-20 06:54:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 6989. [2021-11-20 06:54:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 5720 states have (on average 1.6617132867132867) internal successors, (9505), 5728 states have internal predecessors, (9505), 1243 states have call successors, (1243), 21 states have call predecessors, (1243), 25 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2021-11-20 06:54:20,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 12108 transitions. [2021-11-20 06:54:20,963 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 12108 transitions. Word has length 122 [2021-11-20 06:54:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:20,964 INFO L470 AbstractCegarLoop]: Abstraction has 6989 states and 12108 transitions. [2021-11-20 06:54:20,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:20,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 12108 transitions. [2021-11-20 06:54:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 06:54:20,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:20,995 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:20,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:54:20,996 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:20,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1115485310, now seen corresponding path program 1 times [2021-11-20 06:54:20,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:20,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666797027] [2021-11-20 06:54:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:20,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 06:54:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:54:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:54:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:54:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 06:54:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-20 06:54:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:21,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:21,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666797027] [2021-11-20 06:54:21,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666797027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:21,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:21,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:21,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539460859] [2021-11-20 06:54:21,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:21,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:21,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:21,118 INFO L87 Difference]: Start difference. First operand 6989 states and 12108 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:22,853 INFO L93 Difference]: Finished difference Result 17793 states and 31364 transitions. [2021-11-20 06:54:22,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:22,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-11-20 06:54:22,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:22,909 INFO L225 Difference]: With dead ends: 17793 [2021-11-20 06:54:22,909 INFO L226 Difference]: Without dead ends: 11863 [2021-11-20 06:54:22,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:22,937 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1188 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:22,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 1407 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2021-11-20 06:54:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 11773. [2021-11-20 06:54:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11773 states, 9682 states have (on average 1.6611237347655443) internal successors, (16083), 9690 states have internal predecessors, (16083), 2065 states have call successors, (2065), 21 states have call predecessors, (2065), 25 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2021-11-20 06:54:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 20408 transitions. [2021-11-20 06:54:23,830 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 20408 transitions. Word has length 123 [2021-11-20 06:54:23,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:23,831 INFO L470 AbstractCegarLoop]: Abstraction has 11773 states and 20408 transitions. [2021-11-20 06:54:23,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 20408 transitions. [2021-11-20 06:54:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-20 06:54:23,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:23,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:23,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 06:54:23,867 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:23,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:23,868 INFO L85 PathProgramCache]: Analyzing trace with hash -493220089, now seen corresponding path program 1 times [2021-11-20 06:54:23,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:23,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691079763] [2021-11-20 06:54:23,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:23,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:54:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:54:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-20 06:54:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:54:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 06:54:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 06:54:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:24,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691079763] [2021-11-20 06:54:24,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691079763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:24,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:24,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:24,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329565503] [2021-11-20 06:54:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:24,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:24,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:24,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:24,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:24,086 INFO L87 Difference]: Start difference. First operand 11773 states and 20408 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:26,052 INFO L93 Difference]: Finished difference Result 28226 states and 49489 transitions. [2021-11-20 06:54:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-11-20 06:54:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:26,138 INFO L225 Difference]: With dead ends: 28226 [2021-11-20 06:54:26,138 INFO L226 Difference]: Without dead ends: 18456 [2021-11-20 06:54:26,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:26,176 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1188 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:26,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 1401 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:26,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18456 states. [2021-11-20 06:54:27,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18456 to 18366. [2021-11-20 06:54:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18366 states, 15072 states have (on average 1.6354166666666667) internal successors, (24649), 15080 states have internal predecessors, (24649), 3268 states have call successors, (3268), 21 states have call predecessors, (3268), 25 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2021-11-20 06:54:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18366 states to 18366 states and 31524 transitions. [2021-11-20 06:54:27,730 INFO L78 Accepts]: Start accepts. Automaton has 18366 states and 31524 transitions. Word has length 124 [2021-11-20 06:54:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:27,731 INFO L470 AbstractCegarLoop]: Abstraction has 18366 states and 31524 transitions. [2021-11-20 06:54:27,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 18366 states and 31524 transitions. [2021-11-20 06:54:27,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 06:54:27,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:27,765 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:27,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:54:27,765 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:27,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1450923677, now seen corresponding path program 1 times [2021-11-20 06:54:27,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:27,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837718980] [2021-11-20 06:54:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:27,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:54:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 06:54:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 06:54:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:54:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:54:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 06:54:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:27,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:27,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837718980] [2021-11-20 06:54:27,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837718980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:27,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:27,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:27,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955457069] [2021-11-20 06:54:27,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:27,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:27,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:27,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:27,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:27,872 INFO L87 Difference]: Start difference. First operand 18366 states and 31524 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:30,429 INFO L93 Difference]: Finished difference Result 48648 states and 84993 transitions. [2021-11-20 06:54:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:30,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-11-20 06:54:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:30,609 INFO L225 Difference]: With dead ends: 48648 [2021-11-20 06:54:30,609 INFO L226 Difference]: Without dead ends: 32892 [2021-11-20 06:54:30,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:30,803 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1186 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:30,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 1403 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:54:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32892 states. [2021-11-20 06:54:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32892 to 32802. [2021-11-20 06:54:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32802 states, 27058 states have (on average 1.6319018404907975) internal successors, (44156), 27066 states have internal predecessors, (44156), 5718 states have call successors, (5718), 21 states have call predecessors, (5718), 25 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2021-11-20 06:54:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32802 states to 32802 states and 56205 transitions. [2021-11-20 06:54:33,231 INFO L78 Accepts]: Start accepts. Automaton has 32802 states and 56205 transitions. Word has length 125 [2021-11-20 06:54:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:33,232 INFO L470 AbstractCegarLoop]: Abstraction has 32802 states and 56205 transitions. [2021-11-20 06:54:33,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 32802 states and 56205 transitions. [2021-11-20 06:54:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-20 06:54:33,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:33,270 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:33,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:54:33,270 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:33,271 INFO L85 PathProgramCache]: Analyzing trace with hash 22185197, now seen corresponding path program 1 times [2021-11-20 06:54:33,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:33,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626848304] [2021-11-20 06:54:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:33,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:54:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:54:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:54:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:54:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 06:54:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 06:54:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:33,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:33,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626848304] [2021-11-20 06:54:33,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626848304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:33,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:33,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:33,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540709633] [2021-11-20 06:54:33,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:33,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:33,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:33,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:33,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:33,438 INFO L87 Difference]: Start difference. First operand 32802 states and 56205 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:37,310 INFO L93 Difference]: Finished difference Result 89545 states and 155627 transitions. [2021-11-20 06:54:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-11-20 06:54:37,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:37,838 INFO L225 Difference]: With dead ends: 89545 [2021-11-20 06:54:37,838 INFO L226 Difference]: Without dead ends: 60229 [2021-11-20 06:54:37,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:37,921 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1183 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:37,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 1419 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60229 states. [2021-11-20 06:54:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60229 to 60139. [2021-11-20 06:54:41,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60139 states, 49882 states have (on average 1.6274207128824025) internal successors, (81179), 49890 states have internal predecessors, (81179), 10231 states have call successors, (10231), 21 states have call predecessors, (10231), 25 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2021-11-20 06:54:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60139 states to 60139 states and 102786 transitions. [2021-11-20 06:54:42,277 INFO L78 Accepts]: Start accepts. Automaton has 60139 states and 102786 transitions. Word has length 126 [2021-11-20 06:54:42,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:42,278 INFO L470 AbstractCegarLoop]: Abstraction has 60139 states and 102786 transitions. [2021-11-20 06:54:42,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:42,278 INFO L276 IsEmpty]: Start isEmpty. Operand 60139 states and 102786 transitions. [2021-11-20 06:54:42,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 06:54:42,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:42,318 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:42,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 06:54:42,318 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:42,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 906841661, now seen corresponding path program 1 times [2021-11-20 06:54:42,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:42,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859085010] [2021-11-20 06:54:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:42,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:54:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:54:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:54:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:54:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 06:54:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-20 06:54:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:42,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:42,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859085010] [2021-11-20 06:54:42,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859085010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:42,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:42,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:54:42,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172239736] [2021-11-20 06:54:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:42,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:54:42,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:54:42,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:54:42,453 INFO L87 Difference]: Start difference. First operand 60139 states and 102786 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:47,838 INFO L93 Difference]: Finished difference Result 112636 states and 196205 transitions. [2021-11-20 06:54:47,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:47,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-11-20 06:54:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:48,469 INFO L225 Difference]: With dead ends: 112636 [2021-11-20 06:54:48,469 INFO L226 Difference]: Without dead ends: 112487 [2021-11-20 06:54:48,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:54:48,504 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1182 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:48,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 1405 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:54:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112487 states. [2021-11-20 06:54:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112487 to 112397. [2021-11-20 06:54:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112397 states, 93772 states have (on average 1.621870067824084) internal successors, (152086), 93780 states have internal predecessors, (152086), 18599 states have call successors, (18599), 21 states have call predecessors, (18599), 25 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2021-11-20 06:54:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112397 states to 112397 states and 191475 transitions. [2021-11-20 06:54:54,746 INFO L78 Accepts]: Start accepts. Automaton has 112397 states and 191475 transitions. Word has length 127 [2021-11-20 06:54:54,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:54,747 INFO L470 AbstractCegarLoop]: Abstraction has 112397 states and 191475 transitions. [2021-11-20 06:54:54,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 112397 states and 191475 transitions. [2021-11-20 06:54:54,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:54:54,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:54,786 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:54:54,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 06:54:54,786 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:54,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1031317938, now seen corresponding path program 1 times [2021-11-20 06:54:54,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:54,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414063900] [2021-11-20 06:54:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:54,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:54:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:54:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:54:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:54:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:54:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:54:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:54:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:54:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:54:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 06:54:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:54:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:54:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,057 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:54:55,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:55,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414063900] [2021-11-20 06:54:55,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414063900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:55,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:55,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-20 06:54:55,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864802823] [2021-11-20 06:54:55,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:55,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 06:54:55,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 06:54:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:54:55,061 INFO L87 Difference]: Start difference. First operand 112397 states and 191475 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12)