./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cf7ce6a809409f6f4ca5aec26ee44d6ee6c1bd8459af1b8b074817ec65bb1ea --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:48:04,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:48:04,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:48:04,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:48:04,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:48:04,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:48:04,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:48:04,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:48:04,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:48:04,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:48:04,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:48:04,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:48:04,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:48:04,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:48:04,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:48:04,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:48:04,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:48:04,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:48:04,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:48:04,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:48:04,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:48:04,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:48:04,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:48:04,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:48:04,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:48:04,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:48:04,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:48:04,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:48:04,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:48:04,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:48:04,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:48:04,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:48:04,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:48:04,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:48:04,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:48:04,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:48:04,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:48:04,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:48:04,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:48:04,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:48:04,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:48:04,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:48:04,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:48:04,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:48:04,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:48:04,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:48:04,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:48:04,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:48:04,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:48:04,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:48:04,621 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:48:04,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:48:04,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:48:04,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:48:04,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:48:04,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:48:04,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:48:04,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:48:04,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:48:04,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:48:04,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:48:04,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:48:04,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:48:04,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:48:04,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:48:04,625 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_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cf7ce6a809409f6f4ca5aec26ee44d6ee6c1bd8459af1b8b074817ec65bb1ea [2021-12-06 19:48:04,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:48:04,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:48:04,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:48:04,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:48:04,841 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:48:04,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2021-12-06 19:48:04,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/data/9c11a1c9d/ec4644ef814043d486b4fdf9f1e5cbe4/FLAG8d4a2f0e7 [2021-12-06 19:48:05,315 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:48:05,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c [2021-12-06 19:48:05,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/data/9c11a1c9d/ec4644ef814043d486b4fdf9f1e5cbe4/FLAG8d4a2f0e7 [2021-12-06 19:48:05,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/data/9c11a1c9d/ec4644ef814043d486b4fdf9f1e5cbe4 [2021-12-06 19:48:05,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:48:05,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:48:05,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:48:05,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:48:05,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:48:05,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:05,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2a84b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05, skipping insertion in model container [2021-12-06 19:48:05,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:05,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:48:05,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:48:05,774 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_4da7479c-5a38-43db-a904-935225132757/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c[54302,54315] [2021-12-06 19:48:05,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:48:05,817 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:48:05,888 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_4da7479c-5a38-43db-a904-935225132757/sv-benchmarks/c/product-lines/email_spec6_product21.cil.c[54302,54315] [2021-12-06 19:48:05,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:48:05,924 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:48:05,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05 WrapperNode [2021-12-06 19:48:05,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:48:05,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:48:05,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:48:05,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:48:05,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:05,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:05,991 INFO L137 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 56, calls inlined = 53, statements flattened = 1047 [2021-12-06 19:48:05,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:48:05,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:48:05,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:48:05,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:48:06,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:48:06,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:48:06,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:48:06,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:48:06,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (1/1) ... [2021-12-06 19:48:06,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:48:06,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:06,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:48:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:48:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-06 19:48:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-06 19:48:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-06 19:48:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-06 19:48:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-06 19:48:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-06 19:48:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-06 19:48:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-06 19:48:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-06 19:48:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-06 19:48:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-06 19:48:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-06 19:48:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-06 19:48:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-06 19:48:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-06 19:48:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-06 19:48:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-06 19:48:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-06 19:48:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-06 19:48:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-06 19:48:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-06 19:48:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-06 19:48:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-06 19:48:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-06 19:48:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:48:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:48:06,288 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:48:06,289 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:48:06,798 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:48:06,810 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:48:06,810 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:48:06,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:48:06 BoogieIcfgContainer [2021-12-06 19:48:06,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:48:06,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:48:06,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:48:06,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:48:06,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:48:05" (1/3) ... [2021-12-06 19:48:06,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cffdea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:48:06, skipping insertion in model container [2021-12-06 19:48:06,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:48:05" (2/3) ... [2021-12-06 19:48:06,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cffdea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:48:06, skipping insertion in model container [2021-12-06 19:48:06,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:48:06" (3/3) ... [2021-12-06 19:48:06,821 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2021-12-06 19:48:06,826 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:48:06,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:48:06,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:48:06,877 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:48:06,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:48:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 303 states have (on average 1.5577557755775577) internal successors, (472), 308 states have internal predecessors, (472), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-06 19:48:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-06 19:48:06,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:06,917 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:06,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:06,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash -979980386, now seen corresponding path program 1 times [2021-12-06 19:48:06,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:06,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878131836] [2021-12-06 19:48:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:06,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:48:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:48:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 19:48:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 19:48:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 19:48:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 19:48:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 19:48:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 19:48:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 19:48:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:48:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 19:48:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:48:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-06 19:48:07,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:07,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878131836] [2021-12-06 19:48:07,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878131836] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:07,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383565423] [2021-12-06 19:48:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:07,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:07,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:07,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:07,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:48:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:07,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 19:48:07,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-06 19:48:07,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:07,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383565423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:07,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:07,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-06 19:48:07,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414798404] [2021-12-06 19:48:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:07,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:48:07,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:48:07,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:48:07,779 INFO L87 Difference]: Start difference. First operand has 389 states, 303 states have (on average 1.5577557755775577) internal successors, (472), 308 states have internal predecessors, (472), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:07,831 INFO L93 Difference]: Finished difference Result 585 states and 878 transitions. [2021-12-06 19:48:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:48:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2021-12-06 19:48:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:07,844 INFO L225 Difference]: With dead ends: 585 [2021-12-06 19:48:07,844 INFO L226 Difference]: Without dead ends: 382 [2021-12-06 19:48:07,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:48:07,852 INFO L933 BasicCegarLoop]: 590 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, 590 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:07,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:48:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-12-06 19:48:07,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2021-12-06 19:48:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 297 states have (on average 1.5521885521885521) internal successors, (461), 301 states have internal predecessors, (461), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-06 19:48:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 582 transitions. [2021-12-06 19:48:07,905 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 582 transitions. Word has length 142 [2021-12-06 19:48:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:07,907 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 582 transitions. [2021-12-06 19:48:07,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 582 transitions. [2021-12-06 19:48:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-06 19:48:07,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:07,911 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:07,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:48:08,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-06 19:48:08,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:08,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1793584738, now seen corresponding path program 1 times [2021-12-06 19:48:08,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:08,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975844540] [2021-12-06 19:48:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:08,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:48:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:48:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 19:48:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 19:48:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:48:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 19:48:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 19:48:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 19:48:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:48:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:48:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:48:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 19:48:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:48:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:48:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:48:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-06 19:48:08,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:08,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975844540] [2021-12-06 19:48:08,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975844540] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:08,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731763627] [2021-12-06 19:48:08,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:08,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:08,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:08,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:48:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:08,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:48:08,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-06 19:48:08,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:08,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731763627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:08,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:08,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-06 19:48:08,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281123624] [2021-12-06 19:48:08,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:08,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:48:08,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:08,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:48:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:48:08,706 INFO L87 Difference]: Start difference. First operand 382 states and 582 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:08,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:08,732 INFO L93 Difference]: Finished difference Result 575 states and 856 transitions. [2021-12-06 19:48:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:48:08,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2021-12-06 19:48:08,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:08,736 INFO L225 Difference]: With dead ends: 575 [2021-12-06 19:48:08,736 INFO L226 Difference]: Without dead ends: 385 [2021-12-06 19:48:08,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:48:08,738 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:08,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:48:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-12-06 19:48:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2021-12-06 19:48:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 299 states have (on average 1.548494983277592) internal successors, (463), 303 states have internal predecessors, (463), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-06 19:48:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 584 transitions. [2021-12-06 19:48:08,761 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 584 transitions. Word has length 143 [2021-12-06 19:48:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:08,761 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 584 transitions. [2021-12-06 19:48:08,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 584 transitions. [2021-12-06 19:48:08,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-06 19:48:08,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:08,765 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:08,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:48:08,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:08,965 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1101492309, now seen corresponding path program 1 times [2021-12-06 19:48:08,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:08,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656082297] [2021-12-06 19:48:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:08,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:48:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:48:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 19:48:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 19:48:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 19:48:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 19:48:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 19:48:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:48:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:48:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:48:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:48:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:48:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:48:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 19:48:09,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:09,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656082297] [2021-12-06 19:48:09,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656082297] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:09,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574295460] [2021-12-06 19:48:09,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:09,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:09,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:09,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:09,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:48:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:48:09,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-06 19:48:09,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:09,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574295460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:09,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:09,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-06 19:48:09,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423116573] [2021-12-06 19:48:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:09,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:48:09,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:48:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:48:09,426 INFO L87 Difference]: Start difference. First operand 384 states and 584 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:09,452 INFO L93 Difference]: Finished difference Result 816 states and 1260 transitions. [2021-12-06 19:48:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:48:09,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2021-12-06 19:48:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:09,456 INFO L225 Difference]: With dead ends: 816 [2021-12-06 19:48:09,456 INFO L226 Difference]: Without dead ends: 459 [2021-12-06 19:48:09,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:48:09,458 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 134 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:09,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:48:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-12-06 19:48:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 451. [2021-12-06 19:48:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 352 states have (on average 1.5681818181818181) internal successors, (552), 356 states have internal predecessors, (552), 75 states have call successors, (75), 23 states have call predecessors, (75), 23 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-12-06 19:48:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 701 transitions. [2021-12-06 19:48:09,481 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 701 transitions. Word has length 149 [2021-12-06 19:48:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:09,481 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 701 transitions. [2021-12-06 19:48:09,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 701 transitions. [2021-12-06 19:48:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-06 19:48:09,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:09,484 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:09,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:48:09,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:09,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:09,686 INFO L85 PathProgramCache]: Analyzing trace with hash 677769357, now seen corresponding path program 1 times [2021-12-06 19:48:09,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:09,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665306488] [2021-12-06 19:48:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:09,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:48:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:48:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 19:48:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:48:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 19:48:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:48:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 19:48:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:48:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 19:48:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:48:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:48:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 19:48:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 19:48:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 19:48:09,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:09,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665306488] [2021-12-06 19:48:09,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665306488] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:09,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264098124] [2021-12-06 19:48:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:09,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:09,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:09,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:09,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:48:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:09,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:48:09,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 19:48:10,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:10,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264098124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:10,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:10,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-06 19:48:10,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622514001] [2021-12-06 19:48:10,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:10,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:48:10,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:48:10,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:48:10,131 INFO L87 Difference]: Start difference. First operand 451 states and 701 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 19:48:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:10,183 INFO L93 Difference]: Finished difference Result 893 states and 1392 transitions. [2021-12-06 19:48:10,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:48:10,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2021-12-06 19:48:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:10,186 INFO L225 Difference]: With dead ends: 893 [2021-12-06 19:48:10,187 INFO L226 Difference]: Without dead ends: 453 [2021-12-06 19:48:10,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:10,189 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 152 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:10,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2118 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:48:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-12-06 19:48:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2021-12-06 19:48:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 353 states have (on average 1.56657223796034) internal successors, (553), 358 states have internal predecessors, (553), 75 states have call successors, (75), 23 states have call predecessors, (75), 24 states have return successors, (76), 73 states have call predecessors, (76), 74 states have call successors, (76) [2021-12-06 19:48:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 704 transitions. [2021-12-06 19:48:10,209 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 704 transitions. Word has length 150 [2021-12-06 19:48:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:10,209 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 704 transitions. [2021-12-06 19:48:10,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 19:48:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 704 transitions. [2021-12-06 19:48:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-06 19:48:10,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:10,212 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:10,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:48:10,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-06 19:48:10,413 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1113332805, now seen corresponding path program 1 times [2021-12-06 19:48:10,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:10,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002779974] [2021-12-06 19:48:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:10,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 19:48:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 19:48:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 19:48:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 19:48:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 19:48:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:48:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:48:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:48:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 19:48:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 19:48:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:48:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 19:48:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:48:10,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:10,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002779974] [2021-12-06 19:48:10,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002779974] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:10,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133626532] [2021-12-06 19:48:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:10,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:10,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:10,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:10,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:48:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:48:10,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 19:48:10,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:10,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133626532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:10,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:10,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-06 19:48:10,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652788615] [2021-12-06 19:48:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:10,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:48:10,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:48:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:48:10,869 INFO L87 Difference]: Start difference. First operand 453 states and 704 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:48:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:10,922 INFO L93 Difference]: Finished difference Result 895 states and 1397 transitions. [2021-12-06 19:48:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:48:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2021-12-06 19:48:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:10,925 INFO L225 Difference]: With dead ends: 895 [2021-12-06 19:48:10,925 INFO L226 Difference]: Without dead ends: 455 [2021-12-06 19:48:10,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:48:10,928 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 151 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:10,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2107 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:48:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-12-06 19:48:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2021-12-06 19:48:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 354 states have (on average 1.5649717514124293) internal successors, (554), 360 states have internal predecessors, (554), 75 states have call successors, (75), 23 states have call predecessors, (75), 25 states have return successors, (81), 73 states have call predecessors, (81), 74 states have call successors, (81) [2021-12-06 19:48:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 710 transitions. [2021-12-06 19:48:10,947 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 710 transitions. Word has length 132 [2021-12-06 19:48:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:10,948 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 710 transitions. [2021-12-06 19:48:10,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:48:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 710 transitions. [2021-12-06 19:48:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-06 19:48:10,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:10,950 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:10,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:48:11,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:11,151 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 634219356, now seen corresponding path program 1 times [2021-12-06 19:48:11,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:11,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141184581] [2021-12-06 19:48:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:11,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 19:48:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 19:48:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:48:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:48:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:48:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 19:48:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:48:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:48:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 19:48:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:48:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:48:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:48:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 19:48:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:48:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 19:48:11,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:11,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141184581] [2021-12-06 19:48:11,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141184581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:11,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:11,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:48:11,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607270503] [2021-12-06 19:48:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:11,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:48:11,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:48:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:48:11,288 INFO L87 Difference]: Start difference. First operand 455 states and 710 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 19:48:12,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:12,717 INFO L93 Difference]: Finished difference Result 1055 states and 1663 transitions. [2021-12-06 19:48:12,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:48:12,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2021-12-06 19:48:12,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:12,723 INFO L225 Difference]: With dead ends: 1055 [2021-12-06 19:48:12,723 INFO L226 Difference]: Without dead ends: 623 [2021-12-06 19:48:12,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:48:12,725 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1388 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:12,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 1963 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:48:12,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-12-06 19:48:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 455. [2021-12-06 19:48:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 354 states have (on average 1.5649717514124293) internal successors, (554), 360 states have internal predecessors, (554), 75 states have call successors, (75), 23 states have call predecessors, (75), 25 states have return successors, (80), 73 states have call predecessors, (80), 74 states have call successors, (80) [2021-12-06 19:48:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 709 transitions. [2021-12-06 19:48:12,764 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 709 transitions. Word has length 152 [2021-12-06 19:48:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:12,765 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 709 transitions. [2021-12-06 19:48:12,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 19:48:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 709 transitions. [2021-12-06 19:48:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 19:48:12,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:12,767 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:12,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:48:12,767 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1741998742, now seen corresponding path program 1 times [2021-12-06 19:48:12,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:12,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501126196] [2021-12-06 19:48:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:12,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 19:48:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 19:48:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 19:48:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 19:48:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:48:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 19:48:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:48:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 19:48:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:48:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:48:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 19:48:12,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:12,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501126196] [2021-12-06 19:48:12,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501126196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:12,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:12,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:48:12,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390416115] [2021-12-06 19:48:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:12,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:48:12,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:12,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:48:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:48:12,866 INFO L87 Difference]: Start difference. First operand 455 states and 709 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:48:14,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:14,074 INFO L93 Difference]: Finished difference Result 1057 states and 1666 transitions. [2021-12-06 19:48:14,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:48:14,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2021-12-06 19:48:14,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:14,079 INFO L225 Difference]: With dead ends: 1057 [2021-12-06 19:48:14,079 INFO L226 Difference]: Without dead ends: 625 [2021-12-06 19:48:14,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:48:14,081 INFO L933 BasicCegarLoop]: 699 mSDtfsCounter, 1380 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:14,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1400 Valid, 1978 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:48:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-06 19:48:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 457. [2021-12-06 19:48:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 355 states have (on average 1.5633802816901408) internal successors, (555), 362 states have internal predecessors, (555), 75 states have call successors, (75), 23 states have call predecessors, (75), 26 states have return successors, (82), 73 states have call predecessors, (82), 74 states have call successors, (82) [2021-12-06 19:48:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2021-12-06 19:48:14,109 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 134 [2021-12-06 19:48:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:14,109 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2021-12-06 19:48:14,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:48:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2021-12-06 19:48:14,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-06 19:48:14,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:14,112 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:14,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:48:14,112 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1783072065, now seen corresponding path program 1 times [2021-12-06 19:48:14,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:14,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152371520] [2021-12-06 19:48:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:14,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 19:48:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 19:48:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 19:48:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:48:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:48:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 19:48:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:48:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 19:48:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 19:48:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:48:14,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:14,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152371520] [2021-12-06 19:48:14,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152371520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:14,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:14,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:48:14,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776641074] [2021-12-06 19:48:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:14,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:48:14,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:14,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:48:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:48:14,233 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 19:48:15,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:15,713 INFO L93 Difference]: Finished difference Result 1055 states and 1661 transitions. [2021-12-06 19:48:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:48:15,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2021-12-06 19:48:15,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:15,717 INFO L225 Difference]: With dead ends: 1055 [2021-12-06 19:48:15,717 INFO L226 Difference]: Without dead ends: 625 [2021-12-06 19:48:15,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:48:15,719 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 1523 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 3796 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 3796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:15,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1523 Valid, 2544 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 3796 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:48:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-06 19:48:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 457. [2021-12-06 19:48:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 355 states have (on average 1.5633802816901408) internal successors, (555), 362 states have internal predecessors, (555), 75 states have call successors, (75), 23 states have call predecessors, (75), 26 states have return successors, (81), 73 states have call predecessors, (81), 74 states have call successors, (81) [2021-12-06 19:48:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 711 transitions. [2021-12-06 19:48:15,751 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 711 transitions. Word has length 135 [2021-12-06 19:48:15,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:15,752 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 711 transitions. [2021-12-06 19:48:15,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 19:48:15,752 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 711 transitions. [2021-12-06 19:48:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 19:48:15,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:15,754 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:15,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:48:15,754 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2036445690, now seen corresponding path program 1 times [2021-12-06 19:48:15,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:15,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509296519] [2021-12-06 19:48:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:15,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:48:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 19:48:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 19:48:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 19:48:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:48:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 19:48:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:48:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 19:48:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 19:48:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:48:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:48:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:48:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:15,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:15,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509296519] [2021-12-06 19:48:15,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509296519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:15,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:15,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:48:15,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263246109] [2021-12-06 19:48:15,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:15,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:48:15,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:15,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:48:15,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:48:15,898 INFO L87 Difference]: Start difference. First operand 457 states and 711 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-06 19:48:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:17,338 INFO L93 Difference]: Finished difference Result 1057 states and 1667 transitions. [2021-12-06 19:48:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:48:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2021-12-06 19:48:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:17,343 INFO L225 Difference]: With dead ends: 1057 [2021-12-06 19:48:17,343 INFO L226 Difference]: Without dead ends: 627 [2021-12-06 19:48:17,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:48:17,344 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 1516 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 3846 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 4438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 3846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:17,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1516 Valid, 2553 Invalid, 4438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 3846 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:48:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-06 19:48:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 459. [2021-12-06 19:48:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 356 states have (on average 1.5617977528089888) internal successors, (556), 364 states have internal predecessors, (556), 75 states have call successors, (75), 23 states have call predecessors, (75), 27 states have return successors, (86), 73 states have call predecessors, (86), 74 states have call successors, (86) [2021-12-06 19:48:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 717 transitions. [2021-12-06 19:48:17,369 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 717 transitions. Word has length 155 [2021-12-06 19:48:17,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:17,369 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 717 transitions. [2021-12-06 19:48:17,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-06 19:48:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 717 transitions. [2021-12-06 19:48:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 19:48:17,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:17,372 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:17,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:48:17,372 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:17,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash -15862298, now seen corresponding path program 1 times [2021-12-06 19:48:17,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:17,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211020310] [2021-12-06 19:48:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:17,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 19:48:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:48:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 19:48:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:48:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 19:48:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:48:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:48:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,472 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:17,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:17,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211020310] [2021-12-06 19:48:17,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211020310] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:17,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419161024] [2021-12-06 19:48:17,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:17,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:17,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:17,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:17,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:48:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:17,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:48:17,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:17,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:48:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:17,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419161024] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:48:17,888 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:48:17,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-06 19:48:17,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218915759] [2021-12-06 19:48:17,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:48:17,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:48:17,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:48:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:48:17,890 INFO L87 Difference]: Start difference. First operand 459 states and 717 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-06 19:48:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:19,058 INFO L93 Difference]: Finished difference Result 1259 states and 2060 transitions. [2021-12-06 19:48:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:48:19,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 137 [2021-12-06 19:48:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:19,065 INFO L225 Difference]: With dead ends: 1259 [2021-12-06 19:48:19,065 INFO L226 Difference]: Without dead ends: 1069 [2021-12-06 19:48:19,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:48:19,066 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 1769 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:19,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 2419 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:48:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2021-12-06 19:48:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 877. [2021-12-06 19:48:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 695 states have (on average 1.6244604316546762) internal successors, (1129), 703 states have internal predecessors, (1129), 154 states have call successors, (154), 23 states have call predecessors, (154), 27 states have return successors, (175), 152 states have call predecessors, (175), 153 states have call successors, (175) [2021-12-06 19:48:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1458 transitions. [2021-12-06 19:48:19,116 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1458 transitions. Word has length 137 [2021-12-06 19:48:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:19,116 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1458 transitions. [2021-12-06 19:48:19,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-06 19:48:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1458 transitions. [2021-12-06 19:48:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-06 19:48:19,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:19,120 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:19,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:48:19,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:19,321 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:19,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:19,322 INFO L85 PathProgramCache]: Analyzing trace with hash -281162795, now seen corresponding path program 1 times [2021-12-06 19:48:19,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:19,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883915940] [2021-12-06 19:48:19,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:19,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 19:48:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 19:48:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:48:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 19:48:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:48:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 19:48:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:48:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 19:48:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:48:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 19:48:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 19:48:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 19:48:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:48:19,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:19,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883915940] [2021-12-06 19:48:19,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883915940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:19,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:19,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:19,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964342645] [2021-12-06 19:48:19,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:19,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:19,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:19,428 INFO L87 Difference]: Start difference. First operand 877 states and 1458 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:20,325 INFO L93 Difference]: Finished difference Result 2277 states and 3861 transitions. [2021-12-06 19:48:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2021-12-06 19:48:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:20,332 INFO L225 Difference]: With dead ends: 2277 [2021-12-06 19:48:20,332 INFO L226 Difference]: Without dead ends: 1468 [2021-12-06 19:48:20,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:20,335 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1382 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:20,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1401 Valid, 1632 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2021-12-06 19:48:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1292. [2021-12-06 19:48:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1031 states have (on average 1.638215324927255) internal successors, (1689), 1039 states have internal predecessors, (1689), 233 states have call successors, (233), 23 states have call predecessors, (233), 27 states have return successors, (264), 231 states have call predecessors, (264), 232 states have call successors, (264) [2021-12-06 19:48:20,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2186 transitions. [2021-12-06 19:48:20,393 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2186 transitions. Word has length 162 [2021-12-06 19:48:20,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:20,393 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 2186 transitions. [2021-12-06 19:48:20,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:20,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2186 transitions. [2021-12-06 19:48:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-06 19:48:20,399 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:20,399 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:20,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 19:48:20,400 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash -320587760, now seen corresponding path program 1 times [2021-12-06 19:48:20,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:20,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526288938] [2021-12-06 19:48:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:20,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 19:48:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 19:48:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:48:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:48:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:48:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:48:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:48:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 19:48:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 19:48:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 19:48:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 19:48:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:48:20,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:20,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526288938] [2021-12-06 19:48:20,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526288938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:20,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:20,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:20,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928777741] [2021-12-06 19:48:20,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:20,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:20,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:20,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:20,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:20,512 INFO L87 Difference]: Start difference. First operand 1292 states and 2186 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:21,403 INFO L93 Difference]: Finished difference Result 3291 states and 5639 transitions. [2021-12-06 19:48:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:21,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 163 [2021-12-06 19:48:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:21,414 INFO L225 Difference]: With dead ends: 3291 [2021-12-06 19:48:21,414 INFO L226 Difference]: Without dead ends: 2120 [2021-12-06 19:48:21,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:21,417 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 1378 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:21,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1397 Valid, 1609 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2021-12-06 19:48:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1944. [2021-12-06 19:48:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1564 states have (on average 1.6470588235294117) internal successors, (2576), 1572 states have internal predecessors, (2576), 352 states have call successors, (352), 23 states have call predecessors, (352), 27 states have return successors, (383), 350 states have call predecessors, (383), 351 states have call successors, (383) [2021-12-06 19:48:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 3311 transitions. [2021-12-06 19:48:21,498 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 3311 transitions. Word has length 163 [2021-12-06 19:48:21,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:21,498 INFO L470 AbstractCegarLoop]: Abstraction has 1944 states and 3311 transitions. [2021-12-06 19:48:21,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 3311 transitions. [2021-12-06 19:48:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-06 19:48:21,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:21,508 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:21,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 19:48:21,508 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1347030163, now seen corresponding path program 1 times [2021-12-06 19:48:21,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:21,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338729960] [2021-12-06 19:48:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:21,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 19:48:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 19:48:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 19:48:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:48:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 19:48:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:48:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 19:48:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:48:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:48:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:48:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 19:48:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 19:48:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:48:21,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:21,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338729960] [2021-12-06 19:48:21,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338729960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:21,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:21,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:21,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290642657] [2021-12-06 19:48:21,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:21,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:21,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:21,616 INFO L87 Difference]: Start difference. First operand 1944 states and 3311 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:22,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:22,552 INFO L93 Difference]: Finished difference Result 4821 states and 8341 transitions. [2021-12-06 19:48:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:22,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2021-12-06 19:48:22,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:22,568 INFO L225 Difference]: With dead ends: 4821 [2021-12-06 19:48:22,568 INFO L226 Difference]: Without dead ends: 3123 [2021-12-06 19:48:22,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:22,572 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1373 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:22,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 1616 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2021-12-06 19:48:22,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 2947. [2021-12-06 19:48:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2405 states have (on average 1.654054054054054) internal successors, (3978), 2413 states have internal predecessors, (3978), 514 states have call successors, (514), 23 states have call predecessors, (514), 27 states have return successors, (561), 512 states have call predecessors, (561), 513 states have call successors, (561) [2021-12-06 19:48:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 5053 transitions. [2021-12-06 19:48:22,693 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 5053 transitions. Word has length 164 [2021-12-06 19:48:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:22,693 INFO L470 AbstractCegarLoop]: Abstraction has 2947 states and 5053 transitions. [2021-12-06 19:48:22,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 5053 transitions. [2021-12-06 19:48:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-06 19:48:22,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:22,710 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:22,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 19:48:22,711 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1803489399, now seen corresponding path program 1 times [2021-12-06 19:48:22,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:22,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637365336] [2021-12-06 19:48:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:22,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 19:48:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 19:48:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 19:48:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 19:48:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 19:48:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 19:48:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:48:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 19:48:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:22,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:22,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637365336] [2021-12-06 19:48:22,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637365336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:22,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:22,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:22,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636143316] [2021-12-06 19:48:22,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:22,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:22,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:22,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:22,790 INFO L87 Difference]: Start difference. First operand 2947 states and 5053 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:23,878 INFO L93 Difference]: Finished difference Result 7245 states and 12630 transitions. [2021-12-06 19:48:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:23,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2021-12-06 19:48:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:23,903 INFO L225 Difference]: With dead ends: 7245 [2021-12-06 19:48:23,903 INFO L226 Difference]: Without dead ends: 4748 [2021-12-06 19:48:23,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:23,909 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 1372 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:23,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 1623 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:23,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2021-12-06 19:48:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4572. [2021-12-06 19:48:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 3785 states have (on average 1.6589167767503303) internal successors, (6279), 3793 states have internal predecessors, (6279), 759 states have call successors, (759), 23 states have call predecessors, (759), 27 states have return successors, (832), 757 states have call predecessors, (832), 758 states have call successors, (832) [2021-12-06 19:48:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 7870 transitions. [2021-12-06 19:48:24,128 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 7870 transitions. Word has length 146 [2021-12-06 19:48:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:24,129 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 7870 transitions. [2021-12-06 19:48:24,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 7870 transitions. [2021-12-06 19:48:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-06 19:48:24,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:24,152 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:24,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 19:48:24,152 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:24,153 INFO L85 PathProgramCache]: Analyzing trace with hash 839600503, now seen corresponding path program 1 times [2021-12-06 19:48:24,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:24,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455880659] [2021-12-06 19:48:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:24,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:48:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 19:48:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 19:48:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 19:48:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:48:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 19:48:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 19:48:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:48:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 19:48:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:48:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 19:48:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 19:48:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:48:24,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:24,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455880659] [2021-12-06 19:48:24,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455880659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:24,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:24,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:24,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935909394] [2021-12-06 19:48:24,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:24,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:24,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:24,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:24,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:24,271 INFO L87 Difference]: Start difference. First operand 4572 states and 7870 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:25,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:25,370 INFO L93 Difference]: Finished difference Result 11291 states and 19790 transitions. [2021-12-06 19:48:25,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:25,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2021-12-06 19:48:25,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:25,409 INFO L225 Difference]: With dead ends: 11291 [2021-12-06 19:48:25,409 INFO L226 Difference]: Without dead ends: 7481 [2021-12-06 19:48:25,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:25,418 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 1372 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:25,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 1672 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7481 states. [2021-12-06 19:48:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7481 to 7305. [2021-12-06 19:48:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 6025 states have (on average 1.6570954356846472) internal successors, (9984), 6033 states have internal predecessors, (9984), 1252 states have call successors, (1252), 23 states have call predecessors, (1252), 27 states have return successors, (1369), 1250 states have call predecessors, (1369), 1251 states have call successors, (1369) [2021-12-06 19:48:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 12605 transitions. [2021-12-06 19:48:25,736 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 12605 transitions. Word has length 166 [2021-12-06 19:48:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:25,736 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 12605 transitions. [2021-12-06 19:48:25,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 12605 transitions. [2021-12-06 19:48:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 19:48:25,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:25,756 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:25,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 19:48:25,756 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash 41142765, now seen corresponding path program 1 times [2021-12-06 19:48:25,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:25,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898853201] [2021-12-06 19:48:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:25,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 19:48:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:48:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 19:48:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:48:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 19:48:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:48:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 19:48:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 19:48:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:48:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:48:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:25,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:25,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898853201] [2021-12-06 19:48:25,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898853201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:25,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:25,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:25,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353109692] [2021-12-06 19:48:25,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:25,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:25,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:25,853 INFO L87 Difference]: Start difference. First operand 7305 states and 12605 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:27,082 INFO L93 Difference]: Finished difference Result 18626 states and 32674 transitions. [2021-12-06 19:48:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2021-12-06 19:48:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:27,114 INFO L225 Difference]: With dead ends: 18626 [2021-12-06 19:48:27,115 INFO L226 Difference]: Without dead ends: 12460 [2021-12-06 19:48:27,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:27,129 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1369 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:27,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 1618 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12460 states. [2021-12-06 19:48:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12460 to 12284. [2021-12-06 19:48:27,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12284 states, 10182 states have (on average 1.6572382636024356) internal successors, (16874), 10190 states have internal predecessors, (16874), 2074 states have call successors, (2074), 23 states have call predecessors, (2074), 27 states have return successors, (2269), 2072 states have call predecessors, (2269), 2073 states have call successors, (2269) [2021-12-06 19:48:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12284 states to 12284 states and 21217 transitions. [2021-12-06 19:48:27,597 INFO L78 Accepts]: Start accepts. Automaton has 12284 states and 21217 transitions. Word has length 148 [2021-12-06 19:48:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:27,597 INFO L470 AbstractCegarLoop]: Abstraction has 12284 states and 21217 transitions. [2021-12-06 19:48:27,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12284 states and 21217 transitions. [2021-12-06 19:48:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-06 19:48:27,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:27,622 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:27,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 19:48:27,622 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:27,623 INFO L85 PathProgramCache]: Analyzing trace with hash 304311503, now seen corresponding path program 1 times [2021-12-06 19:48:27,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:27,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432921080] [2021-12-06 19:48:27,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:27,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 19:48:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 19:48:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:48:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:48:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:48:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:48:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:48:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:48:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:48:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:27,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:27,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432921080] [2021-12-06 19:48:27,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432921080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:27,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:27,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:27,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604757574] [2021-12-06 19:48:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:27,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:27,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:27,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:27,698 INFO L87 Difference]: Start difference. First operand 12284 states and 21217 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:29,158 INFO L93 Difference]: Finished difference Result 29584 states and 51639 transitions. [2021-12-06 19:48:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2021-12-06 19:48:29,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:29,210 INFO L225 Difference]: With dead ends: 29584 [2021-12-06 19:48:29,210 INFO L226 Difference]: Without dead ends: 19413 [2021-12-06 19:48:29,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:29,231 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 1365 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:29,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 1598 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:29,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19413 states. [2021-12-06 19:48:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19413 to 19237. [2021-12-06 19:48:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19237 states, 15932 states have (on average 1.6329399949786594) internal successors, (26016), 15940 states have internal predecessors, (26016), 3277 states have call successors, (3277), 23 states have call predecessors, (3277), 27 states have return successors, (3616), 3275 states have call predecessors, (3616), 3276 states have call successors, (3616) [2021-12-06 19:48:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19237 states to 19237 states and 32909 transitions. [2021-12-06 19:48:30,077 INFO L78 Accepts]: Start accepts. Automaton has 19237 states and 32909 transitions. Word has length 149 [2021-12-06 19:48:30,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:30,077 INFO L470 AbstractCegarLoop]: Abstraction has 19237 states and 32909 transitions. [2021-12-06 19:48:30,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 19237 states and 32909 transitions. [2021-12-06 19:48:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-06 19:48:30,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:30,101 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:30,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 19:48:30,101 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash -518462962, now seen corresponding path program 1 times [2021-12-06 19:48:30,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:30,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764386070] [2021-12-06 19:48:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:30,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 19:48:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:48:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 19:48:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 19:48:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:48:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:48:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 19:48:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 19:48:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:30,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764386070] [2021-12-06 19:48:30,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764386070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:30,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:30,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:30,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711332739] [2021-12-06 19:48:30,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:30,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:30,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:30,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:30,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:30,179 INFO L87 Difference]: Start difference. First operand 19237 states and 32909 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:32,087 INFO L93 Difference]: Finished difference Result 51016 states and 88759 transitions. [2021-12-06 19:48:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:32,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2021-12-06 19:48:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:32,173 INFO L225 Difference]: With dead ends: 51016 [2021-12-06 19:48:32,173 INFO L226 Difference]: Without dead ends: 34534 [2021-12-06 19:48:32,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:32,206 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1367 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:32,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 1607 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:48:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34534 states. [2021-12-06 19:48:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34534 to 34358. [2021-12-06 19:48:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34358 states, 28603 states have (on average 1.629864000279691) internal successors, (46619), 28611 states have internal predecessors, (46619), 5727 states have call successors, (5727), 23 states have call predecessors, (5727), 27 states have return successors, (6340), 5725 states have call predecessors, (6340), 5726 states have call successors, (6340) [2021-12-06 19:48:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34358 states to 34358 states and 58686 transitions. [2021-12-06 19:48:33,774 INFO L78 Accepts]: Start accepts. Automaton has 34358 states and 58686 transitions. Word has length 150 [2021-12-06 19:48:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:33,774 INFO L470 AbstractCegarLoop]: Abstraction has 34358 states and 58686 transitions. [2021-12-06 19:48:33,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 34358 states and 58686 transitions. [2021-12-06 19:48:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-06 19:48:33,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:33,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:33,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 19:48:33,867 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:33,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:33,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2028881993, now seen corresponding path program 1 times [2021-12-06 19:48:33,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:33,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315054341] [2021-12-06 19:48:33,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:33,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 19:48:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 19:48:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:48:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:48:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 19:48:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 19:48:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 19:48:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:48:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 19:48:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:48:33,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:33,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315054341] [2021-12-06 19:48:33,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315054341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:33,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:33,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:33,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164353004] [2021-12-06 19:48:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:33,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:33,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:33,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:33,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:33,945 INFO L87 Difference]: Start difference. First operand 34358 states and 58686 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:36,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:36,867 INFO L93 Difference]: Finished difference Result 93888 states and 162553 transitions. [2021-12-06 19:48:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:36,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2021-12-06 19:48:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:37,070 INFO L225 Difference]: With dead ends: 93888 [2021-12-06 19:48:37,070 INFO L226 Difference]: Without dead ends: 63201 [2021-12-06 19:48:37,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:37,145 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 1361 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:37,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 1649 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:37,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63201 states. [2021-12-06 19:48:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63201 to 63025. [2021-12-06 19:48:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63025 states, 52757 states have (on average 1.6257558238717138) internal successors, (85770), 52765 states have internal predecessors, (85770), 10240 states have call successors, (10240), 23 states have call predecessors, (10240), 27 states have return successors, (11385), 10238 states have call predecessors, (11385), 10239 states have call successors, (11385) [2021-12-06 19:48:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63025 states to 63025 states and 107395 transitions. [2021-12-06 19:48:39,716 INFO L78 Accepts]: Start accepts. Automaton has 63025 states and 107395 transitions. Word has length 151 [2021-12-06 19:48:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:39,716 INFO L470 AbstractCegarLoop]: Abstraction has 63025 states and 107395 transitions. [2021-12-06 19:48:39,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:48:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63025 states and 107395 transitions. [2021-12-06 19:48:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-06 19:48:39,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:39,764 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:39,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 19:48:39,764 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:39,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:39,764 INFO L85 PathProgramCache]: Analyzing trace with hash -689182966, now seen corresponding path program 1 times [2021-12-06 19:48:39,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:39,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10466354] [2021-12-06 19:48:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:39,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 19:48:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:48:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:48:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:48:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 19:48:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:48:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:48:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 19:48:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:48:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:48:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 19:48:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 19:48:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 19:48:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:48:39,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:39,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10466354] [2021-12-06 19:48:39,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10466354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:39,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:48:39,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:48:39,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442737439] [2021-12-06 19:48:39,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:39,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:48:39,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:48:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:48:39,834 INFO L87 Difference]: Start difference. First operand 63025 states and 107395 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:44,411 INFO L93 Difference]: Finished difference Result 118264 states and 205187 transitions. [2021-12-06 19:48:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:48:44,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2021-12-06 19:48:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:44,738 INFO L225 Difference]: With dead ends: 118264 [2021-12-06 19:48:44,738 INFO L226 Difference]: Without dead ends: 118074 [2021-12-06 19:48:44,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:44,770 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1359 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:44,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1377 Valid, 1613 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:48:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118074 states. [2021-12-06 19:48:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118074 to 117898. [2021-12-06 19:48:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117898 states, 99262 states have (on average 1.6205698051620963) internal successors, (160861), 99270 states have internal predecessors, (160861), 18608 states have call successors, (18608), 23 states have call predecessors, (18608), 27 states have return successors, (20799), 18606 states have call predecessors, (20799), 18607 states have call successors, (20799) [2021-12-06 19:48:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117898 states to 117898 states and 200268 transitions. [2021-12-06 19:48:49,467 INFO L78 Accepts]: Start accepts. Automaton has 117898 states and 200268 transitions. Word has length 171 [2021-12-06 19:48:49,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:49,468 INFO L470 AbstractCegarLoop]: Abstraction has 117898 states and 200268 transitions. [2021-12-06 19:48:49,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:48:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 117898 states and 200268 transitions. [2021-12-06 19:48:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-06 19:48:49,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:49,526 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:49,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 19:48:49,526 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1736306856, now seen corresponding path program 1 times [2021-12-06 19:48:49,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:49,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97525396] [2021-12-06 19:48:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:49,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:48:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:48:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:48:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:48:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:48:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:48:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:48:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:48:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 19:48:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 19:48:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 19:48:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 19:48:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 19:48:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-06 19:48:49,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97525396] [2021-12-06 19:48:49,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97525396] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211178111] [2021-12-06 19:48:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:49,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:49,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:49,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:49,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:48:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:49,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 19:48:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:48:50,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:50,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211178111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:50,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:50,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2021-12-06 19:48:50,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505379550] [2021-12-06 19:48:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:50,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:48:50,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:48:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:48:50,193 INFO L87 Difference]: Start difference. First operand 117898 states and 200268 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-06 19:48:57,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:57,966 INFO L93 Difference]: Finished difference Result 235013 states and 404649 transitions. [2021-12-06 19:48:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:48:57,966 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 153 [2021-12-06 19:48:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:58,885 INFO L225 Difference]: With dead ends: 235013 [2021-12-06 19:48:58,886 INFO L226 Difference]: Without dead ends: 234829 [2021-12-06 19:48:58,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2021-12-06 19:48:58,972 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 1147 mSDsluCounter, 5811 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 6649 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:58,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 6649 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1639 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 19:48:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234829 states. [2021-12-06 19:49:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234829 to 234783. [2021-12-06 19:49:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234783 states, 197727 states have (on average 1.6210886727659855) internal successors, (320533), 197635 states have internal predecessors, (320533), 36988 states have call successors, (36988), 60 states have call predecessors, (36988), 67 states have return successors, (44655), 37095 states have call predecessors, (44655), 36985 states have call successors, (44655) [2021-12-06 19:49:09,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234783 states to 234783 states and 402176 transitions. [2021-12-06 19:49:09,699 INFO L78 Accepts]: Start accepts. Automaton has 234783 states and 402176 transitions. Word has length 153 [2021-12-06 19:49:09,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:49:09,700 INFO L470 AbstractCegarLoop]: Abstraction has 234783 states and 402176 transitions. [2021-12-06 19:49:09,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-06 19:49:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 234783 states and 402176 transitions. [2021-12-06 19:49:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 19:49:09,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:49:09,824 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:49:09,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 19:49:10,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da7479c-5a38-43db-a904-935225132757/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-06 19:49:10,026 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:49:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:49:10,027 INFO L85 PathProgramCache]: Analyzing trace with hash 472225181, now seen corresponding path program 1 times [2021-12-06 19:49:10,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:49:10,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453622211] [2021-12-06 19:49:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:49:10,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:49:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:49:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:49:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:49:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:49:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:49:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:49:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:49:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:49:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:49:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 19:49:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 19:49:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:49:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:49:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:49:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:49:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 19:49:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 19:49:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-06 19:49:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:49:10,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:49:10,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453622211] [2021-12-06 19:49:10,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453622211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:49:10,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:49:10,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:49:10,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619349412] [2021-12-06 19:49:10,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:49:10,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:49:10,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:49:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:49:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:49:10,126 INFO L87 Difference]: Start difference. First operand 234783 states and 402176 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:49:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:49:26,271 INFO L93 Difference]: Finished difference Result 453439 states and 792223 transitions. [2021-12-06 19:49:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:49:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2021-12-06 19:49:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:49:28,045 INFO L225 Difference]: With dead ends: 453439 [2021-12-06 19:49:28,045 INFO L226 Difference]: Without dead ends: 452808 [2021-12-06 19:49:28,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2021-12-06 19:49:28,182 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2831 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 1251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 4617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1251 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:49:28,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2848 Valid, 2653 Invalid, 4617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1251 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:49:28,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452808 states. [2021-12-06 19:49:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452808 to 451728. [2021-12-06 19:49:48,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451728 states, 380442 states have (on average 1.624087245887678) internal successors, (617871), 380220 states have internal predecessors, (617871), 71148 states have call successors, (71148), 117 states have call predecessors, (71148), 137 states have return successors, (86043), 71406 states have call predecessors, (86043), 71142 states have call successors, (86043) [2021-12-06 19:49:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451728 states to 451728 states and 775062 transitions. [2021-12-06 19:49:50,366 INFO L78 Accepts]: Start accepts. Automaton has 451728 states and 775062 transitions. Word has length 174 [2021-12-06 19:49:50,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:49:50,366 INFO L470 AbstractCegarLoop]: Abstraction has 451728 states and 775062 transitions. [2021-12-06 19:49:50,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 19:49:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 451728 states and 775062 transitions. [2021-12-06 19:49:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-06 19:49:50,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:49:50,519 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:49:50,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 19:49:50,519 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:49:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:49:50,520 INFO L85 PathProgramCache]: Analyzing trace with hash -779250247, now seen corresponding path program 1 times [2021-12-06 19:49:50,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:49:50,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354620582] [2021-12-06 19:49:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:49:50,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:49:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:49:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:49:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:49:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:49:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:49:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:49:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:49:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:49:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:49:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:49:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:49:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 19:49:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:49:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:49:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:49:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:49:50,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:49:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354620582] [2021-12-06 19:49:50,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354620582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:49:50,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:49:50,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:49:50,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437773695] [2021-12-06 19:49:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:49:50,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:49:50,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:49:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:49:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:49:50,794 INFO L87 Difference]: Start difference. First operand 451728 states and 775062 transitions. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-06 19:50:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:50:08,562 INFO L93 Difference]: Finished difference Result 457284 states and 796412 transitions. [2021-12-06 19:50:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 19:50:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 154 [2021-12-06 19:50:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:50:10,239 INFO L225 Difference]: With dead ends: 457284 [2021-12-06 19:50:10,239 INFO L226 Difference]: Without dead ends: 455890 [2021-12-06 19:50:10,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 19:50:10,382 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 2762 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 5159 mSolverCounterSat, 1774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 6933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1774 IncrementalHoareTripleChecker+Valid, 5159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:50:10,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2780 Valid, 3201 Invalid, 6933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1774 Valid, 5159 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:50:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455890 states. [2021-12-06 19:50:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455890 to 452530. [2021-12-06 19:50:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452530 states, 381014 states have (on average 1.6236070065666879) internal successors, (618617), 380811 states have internal predecessors, (618617), 71368 states have call successors, (71368), 129 states have call predecessors, (71368), 147 states have return successors, (86290), 71621 states have call predecessors, (86290), 71350 states have call successors, (86290) [2021-12-06 19:50:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452530 states to 452530 states and 776275 transitions. [2021-12-06 19:50:32,341 INFO L78 Accepts]: Start accepts. Automaton has 452530 states and 776275 transitions. Word has length 154 [2021-12-06 19:50:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:50:32,341 INFO L470 AbstractCegarLoop]: Abstraction has 452530 states and 776275 transitions. [2021-12-06 19:50:32,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 7 states have internal predecessors, (103), 5 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2021-12-06 19:50:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 452530 states and 776275 transitions. [2021-12-06 19:50:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-06 19:50:32,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:50:32,504 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:50:32,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 19:50:32,504 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:50:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:50:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1638786705, now seen corresponding path program 1 times [2021-12-06 19:50:32,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:50:32,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741694000] [2021-12-06 19:50:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:50:32,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:50:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:50:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:50:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:50:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:50:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:50:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:50:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:50:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:50:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:50:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:50:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:50:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 19:50:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:50:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:50:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:50:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:50:32,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:50:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741694000] [2021-12-06 19:50:32,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741694000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:50:32,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:50:32,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:50:32,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242698947] [2021-12-06 19:50:32,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:50:32,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:50:32,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:50:32,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:50:32,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:50:32,593 INFO L87 Difference]: Start difference. First operand 452530 states and 776275 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:50:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:50:58,974 INFO L93 Difference]: Finished difference Result 687824 states and 1213854 transitions. [2021-12-06 19:50:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 19:50:58,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2021-12-06 19:50:58,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:51:01,787 INFO L225 Difference]: With dead ends: 687824 [2021-12-06 19:51:01,787 INFO L226 Difference]: Without dead ends: 686290 [2021-12-06 19:51:02,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:51:02,034 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 3396 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 4357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:51:02,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 2187 Invalid, 4357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:51:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686290 states. [2021-12-06 19:51:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686290 to 678326. [2021-12-06 19:51:34,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678326 states, 571124 states have (on average 1.6235633592704912) internal successors, (927256), 570758 states have internal predecessors, (927256), 106960 states have call successors, (106960), 207 states have call predecessors, (106960), 241 states have return successors, (143849), 107416 states have call predecessors, (143849), 106930 states have call successors, (143849) [2021-12-06 19:51:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678326 states to 678326 states and 1178065 transitions. [2021-12-06 19:51:37,210 INFO L78 Accepts]: Start accepts. Automaton has 678326 states and 1178065 transitions. Word has length 154 [2021-12-06 19:51:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:51:37,211 INFO L470 AbstractCegarLoop]: Abstraction has 678326 states and 1178065 transitions. [2021-12-06 19:51:37,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 19:51:37,211 INFO L276 IsEmpty]: Start isEmpty. Operand 678326 states and 1178065 transitions. [2021-12-06 19:51:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-06 19:51:37,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:51:37,666 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:51:37,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 19:51:37,666 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:51:37,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:51:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash -727907889, now seen corresponding path program 1 times [2021-12-06 19:51:37,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:51:37,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244316584] [2021-12-06 19:51:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:51:37,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:51:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:51:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:51:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:51:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:51:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:51:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:51:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:51:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:51:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:51:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:51:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:51:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:51:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 19:51:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 19:51:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:51:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:51:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:51:37,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:51:37,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244316584] [2021-12-06 19:51:37,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244316584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:51:37,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:51:37,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:51:37,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008750922] [2021-12-06 19:51:37,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:51:37,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:51:37,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:51:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:51:37,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:51:37,815 INFO L87 Difference]: Start difference. First operand 678326 states and 1178065 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:52:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:52:09,824 INFO L93 Difference]: Finished difference Result 703492 states and 1239210 transitions. [2021-12-06 19:52:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-06 19:52:09,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 154 [2021-12-06 19:52:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:52:12,748 INFO L225 Difference]: With dead ends: 703492 [2021-12-06 19:52:12,748 INFO L226 Difference]: Without dead ends: 699892 [2021-12-06 19:52:13,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=359, Invalid=973, Unknown=0, NotChecked=0, Total=1332 [2021-12-06 19:52:13,082 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 3360 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 2255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 6626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2255 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:52:13,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3377 Valid, 2388 Invalid, 6626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2255 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-06 19:52:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699892 states. [2021-12-06 19:52:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699892 to 688154. [2021-12-06 19:52:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688154 states, 578549 states have (on average 1.6204660279423178) internal successors, (937519), 578409 states have internal predecessors, (937519), 108802 states have call successors, (108802), 607 states have call predecessors, (108802), 802 states have return successors, (146940), 109333 states have call predecessors, (146940), 108682 states have call successors, (146940) [2021-12-06 19:52:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688154 states to 688154 states and 1193261 transitions. [2021-12-06 19:52:50,537 INFO L78 Accepts]: Start accepts. Automaton has 688154 states and 1193261 transitions. Word has length 154 [2021-12-06 19:52:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:52:50,538 INFO L470 AbstractCegarLoop]: Abstraction has 688154 states and 1193261 transitions. [2021-12-06 19:52:50,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 19:52:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 688154 states and 1193261 transitions. [2021-12-06 19:52:50,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 19:52:50,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:52:50,816 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:52:50,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 19:52:50,816 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:52:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:52:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1712677543, now seen corresponding path program 1 times [2021-12-06 19:52:50,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:52:50,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709505565] [2021-12-06 19:52:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:52:50,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:52:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:52:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:52:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:52:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:52:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:52:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:52:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:52:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:52:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:52:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:52:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:52:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 19:52:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 19:52:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 19:52:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:52:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:52:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:52:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:52:50,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:52:50,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709505565] [2021-12-06 19:52:50,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709505565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:52:50,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:52:50,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-06 19:52:50,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307310780] [2021-12-06 19:52:50,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:52:50,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 19:52:50,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:52:50,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 19:52:50,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:52:50,958 INFO L87 Difference]: Start difference. First operand 688154 states and 1193261 transitions. Second operand has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 11 states have internal predecessors, (104), 8 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-06 19:53:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:53:21,807 INFO L93 Difference]: Finished difference Result 710364 states and 1249029 transitions. [2021-12-06 19:53:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-06 19:53:21,808 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 11 states have internal predecessors, (104), 8 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 155 [2021-12-06 19:53:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:53:24,849 INFO L225 Difference]: With dead ends: 710364 [2021-12-06 19:53:24,849 INFO L226 Difference]: Without dead ends: 696936 [2021-12-06 19:53:25,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-12-06 19:53:25,229 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2060 mSDsluCounter, 3675 mSDsCounter, 0 mSdLazyCounter, 7028 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 4366 SdHoareTripleChecker+Invalid, 8205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 7028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:53:25,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2060 Valid, 4366 Invalid, 8205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 7028 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 19:53:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696936 states. [2021-12-06 19:54:00,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696936 to 686946. [2021-12-06 19:54:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686946 states, 577681 states have (on average 1.6210070956115918) internal successors, (936425), 577562 states have internal predecessors, (936425), 108464 states have call successors, (108464), 597 states have call predecessors, (108464), 800 states have return successors, (146517), 108968 states have call predecessors, (146517), 108364 states have call successors, (146517) [2021-12-06 19:54:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686946 states to 686946 states and 1191406 transitions. [2021-12-06 19:54:04,020 INFO L78 Accepts]: Start accepts. Automaton has 686946 states and 1191406 transitions. Word has length 155 [2021-12-06 19:54:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:04,021 INFO L470 AbstractCegarLoop]: Abstraction has 686946 states and 1191406 transitions. [2021-12-06 19:54:04,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 11 states have internal predecessors, (104), 8 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-06 19:54:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 686946 states and 1191406 transitions. [2021-12-06 19:54:04,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-06 19:54:04,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:04,481 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:04,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 19:54:04,482 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:54:04,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash 251278847, now seen corresponding path program 1 times [2021-12-06 19:54:04,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:04,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180310823] [2021-12-06 19:54:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:04,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:54:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:54:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:54:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:54:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:54:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:54:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:54:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:54:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:54:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:54:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 19:54:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 19:54:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 19:54:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:54:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:54:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 19:54:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 19:54:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 19:54:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 19:54:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 19:54:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 19:54:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 19:54:04,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:04,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180310823] [2021-12-06 19:54:04,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180310823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:04,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:04,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 19:54:04,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240400184] [2021-12-06 19:54:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:04,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:54:04,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:04,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:54:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:54:04,635 INFO L87 Difference]: Start difference. First operand 686946 states and 1191406 transitions. Second operand has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (24), 10 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-06 19:54:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:46,731 INFO L93 Difference]: Finished difference Result 749039 states and 1316302 transitions. [2021-12-06 19:54:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-12-06 19:54:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (24), 10 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 185 [2021-12-06 19:54:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:50,177 INFO L225 Difference]: With dead ends: 749039 [2021-12-06 19:54:50,177 INFO L226 Difference]: Without dead ends: 736725 [2021-12-06 19:54:51,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1438 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=922, Invalid=3770, Unknown=0, NotChecked=0, Total=4692 [2021-12-06 19:54:51,089 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 2948 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 7395 mSolverCounterSat, 2885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 10280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 7395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:51,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2967 Valid, 3608 Invalid, 10280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2885 Valid, 7395 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-06 19:54:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736725 states. [2021-12-06 19:55:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736725 to 688322. [2021-12-06 19:55:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688322 states, 578772 states have (on average 1.620398015107849) internal successors, (937841), 578658 states have internal predecessors, (937841), 108717 states have call successors, (108717), 582 states have call predecessors, (108717), 832 states have return successors, (146825), 109263 states have call predecessors, (146825), 108617 states have call successors, (146825) [2021-12-06 19:55:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688322 states to 688322 states and 1193383 transitions. [2021-12-06 19:55:30,509 INFO L78 Accepts]: Start accepts. Automaton has 688322 states and 1193383 transitions. Word has length 185 [2021-12-06 19:55:30,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:30,509 INFO L470 AbstractCegarLoop]: Abstraction has 688322 states and 1193383 transitions. [2021-12-06 19:55:30,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.5) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (24), 10 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-06 19:55:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 688322 states and 1193383 transitions. [2021-12-06 19:55:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-06 19:55:30,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:30,883 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:55:30,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 19:55:30,883 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:55:30,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash -786896344, now seen corresponding path program 1 times [2021-12-06 19:55:30,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:30,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627642434] [2021-12-06 19:55:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:30,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:55:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:55:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:55:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:55:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 19:55:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:55:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 19:55:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:55:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:55:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:55:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:55:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 19:55:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 19:55:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:55:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:55:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:55:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 19:55:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 19:55:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 19:55:30,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:30,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627642434] [2021-12-06 19:55:30,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627642434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:55:30,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:55:30,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:55:30,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438909633] [2021-12-06 19:55:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:55:30,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:55:30,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:55:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:55:30,987 INFO L87 Difference]: Start difference. First operand 688322 states and 1193383 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 19:56:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:56:39,733 INFO L93 Difference]: Finished difference Result 824937 states and 1443225 transitions. [2021-12-06 19:56:39,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-12-06 19:56:39,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-12-06 19:56:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:56:44,104 INFO L225 Difference]: With dead ends: 824937 [2021-12-06 19:56:44,104 INFO L226 Difference]: Without dead ends: 811438 [2021-12-06 19:56:46,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1259 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=839, Invalid=2821, Unknown=0, NotChecked=0, Total=3660 [2021-12-06 19:56:46,072 INFO L933 BasicCegarLoop]: 839 mSDtfsCounter, 3355 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 5639 mSolverCounterSat, 3459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 9098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3459 IncrementalHoareTripleChecker+Valid, 5639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:56:46,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3355 Valid, 2408 Invalid, 9098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3459 Valid, 5639 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-06 19:56:46,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811438 states. [2021-12-06 19:57:29,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811438 to 688580.