./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:57:31,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:57:31,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:57:32,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:57:32,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:57:32,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:57:32,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:57:32,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:57:32,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:57:32,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:57:32,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:57:32,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:57:32,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:57:32,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:57:32,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:57:32,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:57:32,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:57:32,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:57:32,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:57:32,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:57:32,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:57:32,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:57:32,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:57:32,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:57:32,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:57:32,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:57:32,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:57:32,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:57:32,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:57:32,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:57:32,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:57:32,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:57:32,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:57:32,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:57:32,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:57:32,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:57:32,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:57:32,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:57:32,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:57:32,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:57:32,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:57:32,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:57:32,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:57:32,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:57:32,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:57:32,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:57:32,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:57:32,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:57:32,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:57:32,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:57:32,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:57:32,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:57:32,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:57:32,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:57:32,097 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc [2021-12-16 00:57:32,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:57:32,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:57:32,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:57:32,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:57:32,332 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:57:32,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2021-12-16 00:57:32,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6dc3f4b/d4c1f419ad70420584165163269f7c3b/FLAGce0bd16d3 [2021-12-16 00:57:32,903 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:57:32,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2021-12-16 00:57:32,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6dc3f4b/d4c1f419ad70420584165163269f7c3b/FLAGce0bd16d3 [2021-12-16 00:57:33,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6dc3f4b/d4c1f419ad70420584165163269f7c3b [2021-12-16 00:57:33,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:57:33,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:57:33,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:57:33,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:57:33,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:57:33,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6b4272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33, skipping insertion in model container [2021-12-16 00:57:33,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:57:33,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:57:33,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2021-12-16 00:57:33,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:57:33,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:57:33,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2021-12-16 00:57:33,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:57:33,653 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:57:33,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33 WrapperNode [2021-12-16 00:57:33,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:57:33,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:57:33,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:57:33,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:57:33,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,725 INFO L137 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1110 [2021-12-16 00:57:33,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:57:33,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:57:33,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:57:33,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:57:33,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:57:33,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:57:33,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:57:33,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:57:33,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (1/1) ... [2021-12-16 00:57:33,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:57:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:33,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 00:57:33,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 00:57:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-16 00:57:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-16 00:57:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-16 00:57:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-16 00:57:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-16 00:57:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-16 00:57:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-16 00:57:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-16 00:57:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-16 00:57:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-16 00:57:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-16 00:57:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-16 00:57:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-16 00:57:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-16 00:57:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-16 00:57:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-16 00:57:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-16 00:57:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-16 00:57:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-16 00:57:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-16 00:57:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-16 00:57:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-16 00:57:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-16 00:57:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-16 00:57:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-16 00:57:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-16 00:57:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-16 00:57:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-16 00:57:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-16 00:57:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:57:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-16 00:57:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-16 00:57:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-16 00:57:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-16 00:57:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-16 00:57:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-16 00:57:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-16 00:57:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-16 00:57:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-16 00:57:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-16 00:57:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-16 00:57:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-16 00:57:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-16 00:57:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-16 00:57:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-16 00:57:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-16 00:57:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-16 00:57:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-16 00:57:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-16 00:57:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-16 00:57:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-16 00:57:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-16 00:57:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-16 00:57:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-16 00:57:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:57:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-16 00:57:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-16 00:57:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-16 00:57:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-16 00:57:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:57:33,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:57:34,100 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:57:34,102 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:57:34,665 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:57:34,676 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:57:34,676 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 00:57:34,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:57:34 BoogieIcfgContainer [2021-12-16 00:57:34,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:57:34,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:57:34,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:57:34,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:57:34,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:57:33" (1/3) ... [2021-12-16 00:57:34,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437d573a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:57:34, skipping insertion in model container [2021-12-16 00:57:34,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:57:33" (2/3) ... [2021-12-16 00:57:34,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437d573a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:57:34, skipping insertion in model container [2021-12-16 00:57:34,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:57:34" (3/3) ... [2021-12-16 00:57:34,686 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product34.cil.c [2021-12-16 00:57:34,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:57:34,690 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:57:34,723 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:57:34,728 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 [2021-12-16 00:57:34,728 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:57:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 347 states have (on average 1.5360230547550433) internal successors, (533), 352 states have internal predecessors, (533), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2021-12-16 00:57:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-16 00:57:34,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:34,771 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:34,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:34,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:34,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1401609271, now seen corresponding path program 1 times [2021-12-16 00:57:34,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:34,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032459750] [2021-12-16 00:57:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:34,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:57:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:57:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:57:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 00:57:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 00:57:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:57:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:57:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:57:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:57:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:57:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:57:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:57:35,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:35,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032459750] [2021-12-16 00:57:35,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032459750] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:35,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391832505] [2021-12-16 00:57:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:35,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:35,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:35,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:35,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 00:57:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:35,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-16 00:57:35,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:35,674 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:57:35,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:57:35,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391832505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:35,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:57:35,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-16 00:57:35,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836838624] [2021-12-16 00:57:35,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:35,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 00:57:35,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:35,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 00:57:35,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:57:35,699 INFO L87 Difference]: Start difference. First operand has 448 states, 347 states have (on average 1.5360230547550433) internal successors, (533), 352 states have internal predecessors, (533), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:35,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:35,786 INFO L93 Difference]: Finished difference Result 703 states and 1040 transitions. [2021-12-16 00:57:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 00:57:35,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2021-12-16 00:57:35,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:35,807 INFO L225 Difference]: With dead ends: 703 [2021-12-16 00:57:35,807 INFO L226 Difference]: Without dead ends: 441 [2021-12-16 00:57:35,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:57:35,819 INFO L933 BasicCegarLoop]: 671 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, 671 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 [2021-12-16 00:57:35,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:57:35,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-16 00:57:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2021-12-16 00:57:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 341 states have (on average 1.530791788856305) internal successors, (522), 345 states have internal predecessors, (522), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2021-12-16 00:57:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 663 transitions. [2021-12-16 00:57:35,879 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 663 transitions. Word has length 110 [2021-12-16 00:57:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:35,880 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 663 transitions. [2021-12-16 00:57:35,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:35,881 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 663 transitions. [2021-12-16 00:57:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-16 00:57:35,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:35,884 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:35,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 00:57:36,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-16 00:57:36,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:36,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:36,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1511627835, now seen corresponding path program 1 times [2021-12-16 00:57:36,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:36,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231389857] [2021-12-16 00:57:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:36,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:57:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:57:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:57:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:57:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 00:57:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:57:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:57:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:57:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:57:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:57:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:57:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:57:36,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:36,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231389857] [2021-12-16 00:57:36,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231389857] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:36,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894950586] [2021-12-16 00:57:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:36,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:36,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:36,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:36,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 00:57:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:36,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 00:57:36,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:57:36,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:57:36,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894950586] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:36,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:57:36,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:57:36,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043772910] [2021-12-16 00:57:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:36,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:57:36,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:36,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:57:36,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:57:36,827 INFO L87 Difference]: Start difference. First operand 441 states and 663 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:36,879 INFO L93 Difference]: Finished difference Result 693 states and 1018 transitions. [2021-12-16 00:57:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:57:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2021-12-16 00:57:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:36,882 INFO L225 Difference]: With dead ends: 693 [2021-12-16 00:57:36,883 INFO L226 Difference]: Without dead ends: 444 [2021-12-16 00:57:36,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:57:36,885 INFO L933 BasicCegarLoop]: 661 mSDtfsCounter, 1 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1320 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 [2021-12-16 00:57:36,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1320 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:57:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-12-16 00:57:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2021-12-16 00:57:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 343 states have (on average 1.5276967930029155) internal successors, (524), 347 states have internal predecessors, (524), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2021-12-16 00:57:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 665 transitions. [2021-12-16 00:57:36,906 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 665 transitions. Word has length 111 [2021-12-16 00:57:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:36,907 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 665 transitions. [2021-12-16 00:57:36,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 665 transitions. [2021-12-16 00:57:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-16 00:57:36,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:36,911 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:36,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-16 00:57:37,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-16 00:57:37,129 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 843354108, now seen corresponding path program 1 times [2021-12-16 00:57:37,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:37,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989165140] [2021-12-16 00:57:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:37,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:57:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:57:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:57:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 00:57:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:57:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:57:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:57:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:57:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:57:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:57:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:57:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:57:37,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989165140] [2021-12-16 00:57:37,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989165140] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331801509] [2021-12-16 00:57:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:37,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:37,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:37,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:37,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 00:57:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:57:37,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:57:37,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:57:37,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331801509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:37,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:57:37,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:57:37,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749972784] [2021-12-16 00:57:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:37,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:57:37,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:37,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:57:37,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:57:37,657 INFO L87 Difference]: Start difference. First operand 443 states and 665 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:37,680 INFO L93 Difference]: Finished difference Result 934 states and 1422 transitions. [2021-12-16 00:57:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:57:37,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2021-12-16 00:57:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:37,684 INFO L225 Difference]: With dead ends: 934 [2021-12-16 00:57:37,684 INFO L226 Difference]: Without dead ends: 518 [2021-12-16 00:57:37,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:57:37,686 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 134 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1311 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 [2021-12-16 00:57:37,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1311 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:57:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-12-16 00:57:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 510. [2021-12-16 00:57:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 396 states have (on average 1.547979797979798) internal successors, (613), 400 states have internal predecessors, (613), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2021-12-16 00:57:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 782 transitions. [2021-12-16 00:57:37,704 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 782 transitions. Word has length 117 [2021-12-16 00:57:37,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:37,704 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 782 transitions. [2021-12-16 00:57:37,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:37,705 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 782 transitions. [2021-12-16 00:57:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-16 00:57:37,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:37,707 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:37,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 00:57:37,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:37,925 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:37,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:37,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2031116616, now seen corresponding path program 1 times [2021-12-16 00:57:37,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:37,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3210741] [2021-12-16 00:57:37,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:37,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:57:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:57:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:57:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 00:57:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:57:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:57:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:57:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:57:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:57:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:57:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:57:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:57:38,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:38,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3210741] [2021-12-16 00:57:38,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3210741] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:38,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492951590] [2021-12-16 00:57:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:38,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:38,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:38,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 00:57:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 00:57:38,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 00:57:38,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:57:38,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492951590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:38,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:57:38,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-16 00:57:38,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901190955] [2021-12-16 00:57:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:38,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:57:38,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:57:38,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:57:38,445 INFO L87 Difference]: Start difference. First operand 510 states and 782 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:38,493 INFO L93 Difference]: Finished difference Result 1011 states and 1554 transitions. [2021-12-16 00:57:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:57:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2021-12-16 00:57:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:38,496 INFO L225 Difference]: With dead ends: 1011 [2021-12-16 00:57:38,496 INFO L226 Difference]: Without dead ends: 512 [2021-12-16 00:57:38,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:38,498 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 152 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2442 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 [2021-12-16 00:57:38,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2442 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:57:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-12-16 00:57:38,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-12-16 00:57:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 397 states have (on average 1.5465994962216625) internal successors, (614), 402 states have internal predecessors, (614), 85 states have call successors, (85), 28 states have call predecessors, (85), 29 states have return successors, (86), 83 states have call predecessors, (86), 84 states have call successors, (86) [2021-12-16 00:57:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 785 transitions. [2021-12-16 00:57:38,512 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 785 transitions. Word has length 118 [2021-12-16 00:57:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:38,513 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 785 transitions. [2021-12-16 00:57:38,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 785 transitions. [2021-12-16 00:57:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 00:57:38,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:38,515 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:38,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 00:57:38,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:38,735 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:38,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1440532084, now seen corresponding path program 1 times [2021-12-16 00:57:38,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:38,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436455725] [2021-12-16 00:57:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:38,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 00:57:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:57:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 00:57:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:57:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:57:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:57:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:57:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:57:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:57:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:57:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:57:38,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:38,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436455725] [2021-12-16 00:57:38,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436455725] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:38,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712393073] [2021-12-16 00:57:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:38,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:38,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:38,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:38,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 00:57:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 00:57:39,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 00:57:39,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:57:39,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712393073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:39,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:57:39,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-16 00:57:39,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079514571] [2021-12-16 00:57:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:39,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:57:39,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:57:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:57:39,341 INFO L87 Difference]: Start difference. First operand 512 states and 785 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:39,390 INFO L93 Difference]: Finished difference Result 1013 states and 1559 transitions. [2021-12-16 00:57:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:57:39,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2021-12-16 00:57:39,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:39,393 INFO L225 Difference]: With dead ends: 1013 [2021-12-16 00:57:39,393 INFO L226 Difference]: Without dead ends: 514 [2021-12-16 00:57:39,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-16 00:57:39,395 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 151 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2431 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 [2021-12-16 00:57:39,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2431 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:57:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-12-16 00:57:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2021-12-16 00:57:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 398 states have (on average 1.5452261306532664) internal successors, (615), 404 states have internal predecessors, (615), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2021-12-16 00:57:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 791 transitions. [2021-12-16 00:57:39,410 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 791 transitions. Word has length 119 [2021-12-16 00:57:39,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:39,411 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 791 transitions. [2021-12-16 00:57:39,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:39,411 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 791 transitions. [2021-12-16 00:57:39,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-16 00:57:39,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:39,413 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:39,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 00:57:39,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:39,631 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:39,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:39,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1239817995, now seen corresponding path program 1 times [2021-12-16 00:57:39,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:39,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501728045] [2021-12-16 00:57:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:39,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:57:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 00:57:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:57:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:57:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:57:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:57:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:57:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:57:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:57:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:57:39,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:39,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501728045] [2021-12-16 00:57:39,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501728045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:39,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:39,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:57:39,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905543259] [2021-12-16 00:57:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:39,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:57:39,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:57:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:57:39,725 INFO L87 Difference]: Start difference. First operand 514 states and 791 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:41,346 INFO L93 Difference]: Finished difference Result 1210 states and 1878 transitions. [2021-12-16 00:57:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:57:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2021-12-16 00:57:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:41,352 INFO L225 Difference]: With dead ends: 1210 [2021-12-16 00:57:41,352 INFO L226 Difference]: Without dead ends: 719 [2021-12-16 00:57:41,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:57:41,356 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 1854 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:41,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1876 Valid, 1980 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-16 00:57:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-12-16 00:57:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 514. [2021-12-16 00:57:41,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 398 states have (on average 1.5452261306532664) internal successors, (615), 404 states have internal predecessors, (615), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (90), 83 states have call predecessors, (90), 84 states have call successors, (90) [2021-12-16 00:57:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 790 transitions. [2021-12-16 00:57:41,411 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 790 transitions. Word has length 120 [2021-12-16 00:57:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:41,412 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 790 transitions. [2021-12-16 00:57:41,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 790 transitions. [2021-12-16 00:57:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-16 00:57:41,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:41,413 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:41,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:57:41,414 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:41,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:41,414 INFO L85 PathProgramCache]: Analyzing trace with hash 880428033, now seen corresponding path program 2 times [2021-12-16 00:57:41,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:41,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626921310] [2021-12-16 00:57:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:41,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 00:57:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 00:57:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:57:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:57:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:57:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:57:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:57:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:57:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:57:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:57:41,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:41,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626921310] [2021-12-16 00:57:41,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626921310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:41,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:41,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:57:41,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115893097] [2021-12-16 00:57:41,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:41,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:57:41,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:57:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:57:41,538 INFO L87 Difference]: Start difference. First operand 514 states and 790 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:43,010 INFO L93 Difference]: Finished difference Result 1212 states and 1881 transitions. [2021-12-16 00:57:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:57:43,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-16 00:57:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:43,015 INFO L225 Difference]: With dead ends: 1212 [2021-12-16 00:57:43,016 INFO L226 Difference]: Without dead ends: 721 [2021-12-16 00:57:43,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:57:43,018 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 1804 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:43,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1825 Valid, 2019 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-16 00:57:43,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-12-16 00:57:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 516. [2021-12-16 00:57:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 399 states have (on average 1.543859649122807) internal successors, (616), 406 states have internal predecessors, (616), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (92), 83 states have call predecessors, (92), 84 states have call successors, (92) [2021-12-16 00:57:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 793 transitions. [2021-12-16 00:57:43,045 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 793 transitions. Word has length 121 [2021-12-16 00:57:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:43,045 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 793 transitions. [2021-12-16 00:57:43,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-16 00:57:43,046 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 793 transitions. [2021-12-16 00:57:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-16 00:57:43,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:43,047 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:43,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:57:43,048 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -124712218, now seen corresponding path program 1 times [2021-12-16 00:57:43,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:43,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961814533] [2021-12-16 00:57:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:43,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:57:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:57:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:57:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:57:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:57:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:57:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:57:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:57:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:57:43,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961814533] [2021-12-16 00:57:43,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961814533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:43,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:43,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:57:43,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714910174] [2021-12-16 00:57:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:43,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:57:43,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:57:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:57:43,162 INFO L87 Difference]: Start difference. First operand 516 states and 793 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-16 00:57:45,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:45,245 INFO L93 Difference]: Finished difference Result 1210 states and 1876 transitions. [2021-12-16 00:57:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:57:45,245 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2021-12-16 00:57:45,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:45,248 INFO L225 Difference]: With dead ends: 1210 [2021-12-16 00:57:45,249 INFO L226 Difference]: Without dead ends: 721 [2021-12-16 00:57:45,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:57:45,250 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 1854 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 4236 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 4236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:45,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1854 Valid, 2693 Invalid, 4997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 4236 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-16 00:57:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-12-16 00:57:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 516. [2021-12-16 00:57:45,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 399 states have (on average 1.543859649122807) internal successors, (616), 406 states have internal predecessors, (616), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2021-12-16 00:57:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 792 transitions. [2021-12-16 00:57:45,271 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 792 transitions. Word has length 122 [2021-12-16 00:57:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:45,271 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 792 transitions. [2021-12-16 00:57:45,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-16 00:57:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 792 transitions. [2021-12-16 00:57:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-16 00:57:45,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:45,273 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:45,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:57:45,273 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:45,273 INFO L85 PathProgramCache]: Analyzing trace with hash -580455267, now seen corresponding path program 2 times [2021-12-16 00:57:45,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:45,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563378613] [2021-12-16 00:57:45,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:45,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:57:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 00:57:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:57:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:57:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:57:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:57:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:57:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:57:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:57:45,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:45,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563378613] [2021-12-16 00:57:45,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563378613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:45,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:45,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:57:45,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171878412] [2021-12-16 00:57:45,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:45,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:57:45,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:45,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:57:45,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:57:45,389 INFO L87 Difference]: Start difference. First operand 516 states and 792 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-16 00:57:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:47,404 INFO L93 Difference]: Finished difference Result 1212 states and 1882 transitions. [2021-12-16 00:57:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:57:47,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2021-12-16 00:57:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:47,408 INFO L225 Difference]: With dead ends: 1212 [2021-12-16 00:57:47,408 INFO L226 Difference]: Without dead ends: 723 [2021-12-16 00:57:47,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:57:47,412 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 1963 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 4748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:47,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 2570 Invalid, 4748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 3945 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-16 00:57:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-12-16 00:57:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 518. [2021-12-16 00:57:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.5425) internal successors, (617), 408 states have internal predecessors, (617), 85 states have call successors, (85), 28 states have call predecessors, (85), 32 states have return successors, (96), 83 states have call predecessors, (96), 84 states have call successors, (96) [2021-12-16 00:57:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 798 transitions. [2021-12-16 00:57:47,436 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 798 transitions. Word has length 123 [2021-12-16 00:57:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:47,437 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 798 transitions. [2021-12-16 00:57:47,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-16 00:57:47,438 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 798 transitions. [2021-12-16 00:57:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-16 00:57:47,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:47,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:47,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:57:47,440 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash -384876767, now seen corresponding path program 1 times [2021-12-16 00:57:47,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:47,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974163191] [2021-12-16 00:57:47,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:47,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:57:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 00:57:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:57:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:57:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:57:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:57:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:57:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:57:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:47,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:47,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974163191] [2021-12-16 00:57:47,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974163191] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:57:47,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377537646] [2021-12-16 00:57:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:47,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:47,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:57:47,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:57:47,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 00:57:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:47,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:57:47,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:57:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:47,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 00:57:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:48,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377537646] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 00:57:48,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 00:57:48,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-16 00:57:48,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474700172] [2021-12-16 00:57:48,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 00:57:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 00:57:48,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 00:57:48,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-16 00:57:48,027 INFO L87 Difference]: Start difference. First operand 518 states and 798 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-16 00:57:49,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:49,663 INFO L93 Difference]: Finished difference Result 1414 states and 2275 transitions. [2021-12-16 00:57:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 00:57:49,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 124 [2021-12-16 00:57:49,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:49,668 INFO L225 Difference]: With dead ends: 1414 [2021-12-16 00:57:49,669 INFO L226 Difference]: Without dead ends: 1165 [2021-12-16 00:57:49,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:57:49,670 INFO L933 BasicCegarLoop]: 875 mSDtfsCounter, 2156 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:49,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2213 Valid, 2602 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 00:57:49,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-12-16 00:57:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 936. [2021-12-16 00:57:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 739 states have (on average 1.6102841677943167) internal successors, (1190), 747 states have internal predecessors, (1190), 164 states have call successors, (164), 28 states have call predecessors, (164), 32 states have return successors, (185), 162 states have call predecessors, (185), 163 states have call successors, (185) [2021-12-16 00:57:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1539 transitions. [2021-12-16 00:57:49,704 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1539 transitions. Word has length 124 [2021-12-16 00:57:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:49,704 INFO L470 AbstractCegarLoop]: Abstraction has 936 states and 1539 transitions. [2021-12-16 00:57:49,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-16 00:57:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1539 transitions. [2021-12-16 00:57:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 00:57:49,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:49,708 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:49,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 00:57:49,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:57:49,927 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:49,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:49,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1303955588, now seen corresponding path program 1 times [2021-12-16 00:57:49,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:49,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422620516] [2021-12-16 00:57:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:49,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:57:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:57:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:57:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:57:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:57:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:57:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:57:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:57:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:50,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:50,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422620516] [2021-12-16 00:57:50,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422620516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:50,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:50,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:50,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827404972] [2021-12-16 00:57:50,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:50,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:50,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:50,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:50,005 INFO L87 Difference]: Start difference. First operand 936 states and 1539 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:51,197 INFO L93 Difference]: Finished difference Result 2432 states and 4076 transitions. [2021-12-16 00:57:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-16 00:57:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:51,204 INFO L225 Difference]: With dead ends: 2432 [2021-12-16 00:57:51,204 INFO L226 Difference]: Without dead ends: 1564 [2021-12-16 00:57:51,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:51,207 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1710 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 768 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:51,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 1720 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [768 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:57:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-12-16 00:57:51,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1351. [2021-12-16 00:57:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1075 states have (on average 1.627906976744186) internal successors, (1750), 1083 states have internal predecessors, (1750), 243 states have call successors, (243), 28 states have call predecessors, (243), 32 states have return successors, (274), 241 states have call predecessors, (274), 242 states have call successors, (274) [2021-12-16 00:57:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 2267 transitions. [2021-12-16 00:57:51,250 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 2267 transitions. Word has length 130 [2021-12-16 00:57:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:51,251 INFO L470 AbstractCegarLoop]: Abstraction has 1351 states and 2267 transitions. [2021-12-16 00:57:51,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 2267 transitions. [2021-12-16 00:57:51,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-16 00:57:51,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:51,255 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:51,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 00:57:51,256 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:51,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1870689843, now seen corresponding path program 1 times [2021-12-16 00:57:51,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:51,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127502918] [2021-12-16 00:57:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:51,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:57:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:57:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:57:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:57:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:57:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:57:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:57:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 00:57:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:51,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:51,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127502918] [2021-12-16 00:57:51,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127502918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:51,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:51,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:51,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524018168] [2021-12-16 00:57:51,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:51,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:51,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:51,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:51,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:51,328 INFO L87 Difference]: Start difference. First operand 1351 states and 2267 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:52,479 INFO L93 Difference]: Finished difference Result 3446 states and 5854 transitions. [2021-12-16 00:57:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-16 00:57:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:52,490 INFO L225 Difference]: With dead ends: 3446 [2021-12-16 00:57:52,490 INFO L226 Difference]: Without dead ends: 2216 [2021-12-16 00:57:52,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:52,494 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 1780 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:52,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1800 Valid, 1636 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:57:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2021-12-16 00:57:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2003. [2021-12-16 00:57:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1608 states have (on average 1.6399253731343284) internal successors, (2637), 1616 states have internal predecessors, (2637), 362 states have call successors, (362), 28 states have call predecessors, (362), 32 states have return successors, (393), 360 states have call predecessors, (393), 361 states have call successors, (393) [2021-12-16 00:57:52,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 3392 transitions. [2021-12-16 00:57:52,583 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 3392 transitions. Word has length 131 [2021-12-16 00:57:52,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:52,583 INFO L470 AbstractCegarLoop]: Abstraction has 2003 states and 3392 transitions. [2021-12-16 00:57:52,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 3392 transitions. [2021-12-16 00:57:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-16 00:57:52,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:52,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:52,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 00:57:52,592 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1061539902, now seen corresponding path program 1 times [2021-12-16 00:57:52,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:52,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361732540] [2021-12-16 00:57:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:52,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:57:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:57:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:57:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:57:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:57:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:57:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:57:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:57:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:52,674 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:52,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:52,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361732540] [2021-12-16 00:57:52,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361732540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:52,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:52,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:52,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066185525] [2021-12-16 00:57:52,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:52,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:52,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:52,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:52,676 INFO L87 Difference]: Start difference. First operand 2003 states and 3392 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:53,833 INFO L93 Difference]: Finished difference Result 4976 states and 8556 transitions. [2021-12-16 00:57:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:53,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-16 00:57:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:53,847 INFO L225 Difference]: With dead ends: 4976 [2021-12-16 00:57:53,847 INFO L226 Difference]: Without dead ends: 3219 [2021-12-16 00:57:53,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:53,851 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 1743 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:53,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 1663 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:57:53,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2021-12-16 00:57:53,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3006. [2021-12-16 00:57:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2449 states have (on average 1.6492445896284198) internal successors, (4039), 2457 states have internal predecessors, (4039), 524 states have call successors, (524), 28 states have call predecessors, (524), 32 states have return successors, (571), 522 states have call predecessors, (571), 523 states have call successors, (571) [2021-12-16 00:57:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 5134 transitions. [2021-12-16 00:57:53,986 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 5134 transitions. Word has length 132 [2021-12-16 00:57:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:53,986 INFO L470 AbstractCegarLoop]: Abstraction has 3006 states and 5134 transitions. [2021-12-16 00:57:53,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:53,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 5134 transitions. [2021-12-16 00:57:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-16 00:57:53,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:53,996 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:53,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 00:57:53,997 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:53,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:53,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2010719470, now seen corresponding path program 1 times [2021-12-16 00:57:53,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:53,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862770903] [2021-12-16 00:57:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:53,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:57:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:57:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:57:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:57:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:57:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:57:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:57:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:57:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:54,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862770903] [2021-12-16 00:57:54,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862770903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:54,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:54,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:54,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409574363] [2021-12-16 00:57:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:54,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:54,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:54,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:54,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:54,097 INFO L87 Difference]: Start difference. First operand 3006 states and 5134 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:55,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:55,513 INFO L93 Difference]: Finished difference Result 7400 states and 12845 transitions. [2021-12-16 00:57:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:55,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-16 00:57:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:55,533 INFO L225 Difference]: With dead ends: 7400 [2021-12-16 00:57:55,534 INFO L226 Difference]: Without dead ends: 4844 [2021-12-16 00:57:55,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:55,542 INFO L933 BasicCegarLoop]: 749 mSDtfsCounter, 1769 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:55,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1787 Valid, 1640 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:57:55,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-12-16 00:57:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4631. [2021-12-16 00:57:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 3829 states have (on average 1.655784800208932) internal successors, (6340), 3837 states have internal predecessors, (6340), 769 states have call successors, (769), 28 states have call predecessors, (769), 32 states have return successors, (842), 767 states have call predecessors, (842), 768 states have call successors, (842) [2021-12-16 00:57:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 7951 transitions. [2021-12-16 00:57:55,726 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 7951 transitions. Word has length 133 [2021-12-16 00:57:55,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:55,726 INFO L470 AbstractCegarLoop]: Abstraction has 4631 states and 7951 transitions. [2021-12-16 00:57:55,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:55,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 7951 transitions. [2021-12-16 00:57:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-16 00:57:55,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:55,740 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:55,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 00:57:55,740 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:55,740 INFO L85 PathProgramCache]: Analyzing trace with hash -439809242, now seen corresponding path program 1 times [2021-12-16 00:57:55,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:55,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652030410] [2021-12-16 00:57:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:55,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:57:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:57:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:57:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:57:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:57:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:57:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:57:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:57:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:55,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:55,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652030410] [2021-12-16 00:57:55,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652030410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:55,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:55,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:55,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323669524] [2021-12-16 00:57:55,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:55,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:55,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:55,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:55,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:55,814 INFO L87 Difference]: Start difference. First operand 4631 states and 7951 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:57,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:57,105 INFO L93 Difference]: Finished difference Result 11446 states and 20005 transitions. [2021-12-16 00:57:57,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-16 00:57:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:57,146 INFO L225 Difference]: With dead ends: 11446 [2021-12-16 00:57:57,147 INFO L226 Difference]: Without dead ends: 7577 [2021-12-16 00:57:57,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:57,160 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 1669 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:57,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 1762 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:57:57,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2021-12-16 00:57:57,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 7364. [2021-12-16 00:57:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7364 states, 6069 states have (on average 1.6551326412918108) internal successors, (10045), 6077 states have internal predecessors, (10045), 1262 states have call successors, (1262), 28 states have call predecessors, (1262), 32 states have return successors, (1379), 1260 states have call predecessors, (1379), 1261 states have call successors, (1379) [2021-12-16 00:57:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7364 states to 7364 states and 12686 transitions. [2021-12-16 00:57:57,464 INFO L78 Accepts]: Start accepts. Automaton has 7364 states and 12686 transitions. Word has length 134 [2021-12-16 00:57:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:57,465 INFO L470 AbstractCegarLoop]: Abstraction has 7364 states and 12686 transitions. [2021-12-16 00:57:57,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7364 states and 12686 transitions. [2021-12-16 00:57:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 00:57:57,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:57,522 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:57,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 00:57:57,523 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:57,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1727156306, now seen corresponding path program 1 times [2021-12-16 00:57:57,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:57,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841564039] [2021-12-16 00:57:57,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:57,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:57:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:57:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:57:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:57:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:57:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:57:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:57:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:57:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:57,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:57,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841564039] [2021-12-16 00:57:57,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841564039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:57,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:57,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:57,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808400185] [2021-12-16 00:57:57,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:57,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:57,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:57,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:57,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:57,613 INFO L87 Difference]: Start difference. First operand 7364 states and 12686 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:57:58,880 INFO L93 Difference]: Finished difference Result 18781 states and 32889 transitions. [2021-12-16 00:57:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:57:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-16 00:57:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:57:58,918 INFO L225 Difference]: With dead ends: 18781 [2021-12-16 00:57:58,919 INFO L226 Difference]: Without dead ends: 12556 [2021-12-16 00:57:58,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:57:58,937 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 1764 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 768 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:57:58,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1783 Valid, 1655 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [768 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:57:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12556 states. [2021-12-16 00:57:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12556 to 12343. [2021-12-16 00:57:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12343 states, 10226 states have (on average 1.656072755720712) internal successors, (16935), 10234 states have internal predecessors, (16935), 2084 states have call successors, (2084), 28 states have call predecessors, (2084), 32 states have return successors, (2279), 2082 states have call predecessors, (2279), 2083 states have call successors, (2279) [2021-12-16 00:57:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12343 states to 12343 states and 21298 transitions. [2021-12-16 00:57:59,378 INFO L78 Accepts]: Start accepts. Automaton has 12343 states and 21298 transitions. Word has length 135 [2021-12-16 00:57:59,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:57:59,379 INFO L470 AbstractCegarLoop]: Abstraction has 12343 states and 21298 transitions. [2021-12-16 00:57:59,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:57:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 12343 states and 21298 transitions. [2021-12-16 00:57:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-16 00:57:59,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:57:59,410 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:57:59,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 00:57:59,410 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:57:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:57:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash -97339240, now seen corresponding path program 1 times [2021-12-16 00:57:59,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:57:59,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762949510] [2021-12-16 00:57:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:57:59,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:57:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:57:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:57:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:57:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:57:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:57:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:57:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:57:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:57:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:57:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:57:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:57:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:57:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:57:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 00:57:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:57:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:57:59,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:57:59,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762949510] [2021-12-16 00:57:59,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762949510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:57:59,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:57:59,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:57:59,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210181542] [2021-12-16 00:57:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:57:59,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:57:59,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:57:59,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:57:59,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:57:59,536 INFO L87 Difference]: Start difference. First operand 12343 states and 21298 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:58:01,028 INFO L93 Difference]: Finished difference Result 29739 states and 51854 transitions. [2021-12-16 00:58:01,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:58:01,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2021-12-16 00:58:01,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:58:01,089 INFO L225 Difference]: With dead ends: 29739 [2021-12-16 00:58:01,089 INFO L226 Difference]: Without dead ends: 19509 [2021-12-16 00:58:01,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:58:01,119 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1724 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:58:01,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1742 Valid, 1674 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [766 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:58:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2021-12-16 00:58:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19296. [2021-12-16 00:58:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19296 states, 15976 states have (on average 1.6322608913370056) internal successors, (26077), 15984 states have internal predecessors, (26077), 3287 states have call successors, (3287), 28 states have call predecessors, (3287), 32 states have return successors, (3626), 3285 states have call predecessors, (3626), 3286 states have call successors, (3626) [2021-12-16 00:58:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 32990 transitions. [2021-12-16 00:58:01,845 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 32990 transitions. Word has length 136 [2021-12-16 00:58:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:58:01,846 INFO L470 AbstractCegarLoop]: Abstraction has 19296 states and 32990 transitions. [2021-12-16 00:58:01,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 32990 transitions. [2021-12-16 00:58:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-16 00:58:01,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:58:01,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:58:01,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 00:58:01,868 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:58:01,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:58:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash -495626387, now seen corresponding path program 1 times [2021-12-16 00:58:01,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:58:01,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141891334] [2021-12-16 00:58:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:58:01,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:58:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:58:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:58:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:58:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:58:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:58:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:58:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:58:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:58:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:58:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:58:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:58:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:58:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:58:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 00:58:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:58:01,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:58:01,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141891334] [2021-12-16 00:58:01,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141891334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:58:01,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:58:01,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:58:01,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547869061] [2021-12-16 00:58:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:58:01,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:58:01,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:58:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:58:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:58:01,934 INFO L87 Difference]: Start difference. First operand 19296 states and 32990 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:58:04,121 INFO L93 Difference]: Finished difference Result 51171 states and 88974 transitions. [2021-12-16 00:58:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:58:04,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2021-12-16 00:58:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:58:04,248 INFO L225 Difference]: With dead ends: 51171 [2021-12-16 00:58:04,248 INFO L226 Difference]: Without dead ends: 34630 [2021-12-16 00:58:04,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:58:04,296 INFO L933 BasicCegarLoop]: 773 mSDtfsCounter, 1725 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:58:04,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 1673 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:58:04,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34630 states. [2021-12-16 00:58:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34630 to 34417. [2021-12-16 00:58:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34417 states, 28647 states have (on average 1.62948999895277) internal successors, (46680), 28655 states have internal predecessors, (46680), 5737 states have call successors, (5737), 28 states have call predecessors, (5737), 32 states have return successors, (6350), 5735 states have call predecessors, (6350), 5736 states have call successors, (6350) [2021-12-16 00:58:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34417 states to 34417 states and 58767 transitions. [2021-12-16 00:58:05,738 INFO L78 Accepts]: Start accepts. Automaton has 34417 states and 58767 transitions. Word has length 137 [2021-12-16 00:58:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:58:05,738 INFO L470 AbstractCegarLoop]: Abstraction has 34417 states and 58767 transitions. [2021-12-16 00:58:05,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 34417 states and 58767 transitions. [2021-12-16 00:58:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 00:58:05,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:58:05,768 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:58:05,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 00:58:05,769 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:58:05,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:58:05,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1168339618, now seen corresponding path program 1 times [2021-12-16 00:58:05,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:58:05,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559281066] [2021-12-16 00:58:05,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:58:05,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:58:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:58:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:58:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:58:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:58:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:58:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:58:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:58:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:58:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:58:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:58:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:58:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:58:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 00:58:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 00:58:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:58:05,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:58:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559281066] [2021-12-16 00:58:05,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559281066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:58:05,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:58:05,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:58:05,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021376189] [2021-12-16 00:58:05,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:58:05,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:58:05,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:58:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:58:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:58:05,854 INFO L87 Difference]: Start difference. First operand 34417 states and 58767 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:58:08,877 INFO L93 Difference]: Finished difference Result 94043 states and 162768 transitions. [2021-12-16 00:58:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:58:08,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2021-12-16 00:58:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:58:09,085 INFO L225 Difference]: With dead ends: 94043 [2021-12-16 00:58:09,086 INFO L226 Difference]: Without dead ends: 63297 [2021-12-16 00:58:09,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:58:09,162 INFO L933 BasicCegarLoop]: 777 mSDtfsCounter, 1721 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:58:09,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1740 Valid, 1680 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:58:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63297 states. [2021-12-16 00:58:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63297 to 63084. [2021-12-16 00:58:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63084 states, 52801 states have (on average 1.6255563341603378) internal successors, (85831), 52809 states have internal predecessors, (85831), 10250 states have call successors, (10250), 28 states have call predecessors, (10250), 32 states have return successors, (11395), 10248 states have call predecessors, (11395), 10249 states have call successors, (11395) [2021-12-16 00:58:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63084 states to 63084 states and 107476 transitions. [2021-12-16 00:58:11,872 INFO L78 Accepts]: Start accepts. Automaton has 63084 states and 107476 transitions. Word has length 138 [2021-12-16 00:58:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:58:11,872 INFO L470 AbstractCegarLoop]: Abstraction has 63084 states and 107476 transitions. [2021-12-16 00:58:11,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 63084 states and 107476 transitions. [2021-12-16 00:58:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-16 00:58:11,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:58:11,910 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:58:11,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 00:58:11,911 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:58:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:58:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash -602877139, now seen corresponding path program 1 times [2021-12-16 00:58:11,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:58:11,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598256571] [2021-12-16 00:58:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:58:11,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:58:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:58:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:58:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:58:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:58:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:58:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:58:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:58:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:58:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:58:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:58:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:58:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:58:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:58:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 00:58:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:58:12,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:58:12,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598256571] [2021-12-16 00:58:12,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598256571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:58:12,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:58:12,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:58:12,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458136697] [2021-12-16 00:58:12,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:58:12,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:58:12,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:58:12,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:58:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:58:12,229 INFO L87 Difference]: Start difference. First operand 63084 states and 107476 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:58:16,436 INFO L93 Difference]: Finished difference Result 118419 states and 205402 transitions. [2021-12-16 00:58:16,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:58:16,436 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2021-12-16 00:58:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:58:16,943 INFO L225 Difference]: With dead ends: 118419 [2021-12-16 00:58:16,943 INFO L226 Difference]: Without dead ends: 118170 [2021-12-16 00:58:16,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:58:16,995 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 1713 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:58:16,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 1669 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:58:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118170 states. [2021-12-16 00:58:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118170 to 117957. [2021-12-16 00:58:22,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117957 states, 99306 states have (on average 1.6204660342778885) internal successors, (160922), 99314 states have internal predecessors, (160922), 18618 states have call successors, (18618), 28 states have call predecessors, (18618), 32 states have return successors, (20809), 18616 states have call predecessors, (20809), 18617 states have call successors, (20809) [2021-12-16 00:58:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117957 states to 117957 states and 200349 transitions. [2021-12-16 00:58:22,490 INFO L78 Accepts]: Start accepts. Automaton has 117957 states and 200349 transitions. Word has length 139 [2021-12-16 00:58:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:58:22,491 INFO L470 AbstractCegarLoop]: Abstraction has 117957 states and 200349 transitions. [2021-12-16 00:58:22,491 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 00:58:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 117957 states and 200349 transitions. [2021-12-16 00:58:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-16 00:58:22,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:58:22,537 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:58:22,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 00:58:22,537 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:58:22,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:58:22,538 INFO L85 PathProgramCache]: Analyzing trace with hash 52684063, now seen corresponding path program 1 times [2021-12-16 00:58:22,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:58:22,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420976974] [2021-12-16 00:58:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:58:22,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:58:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:58:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:58:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:58:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:58:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:58:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:58:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:58:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:58:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:58:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:58:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:58:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:58:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:58:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 00:58:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:58:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:58:23,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:58:23,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420976974] [2021-12-16 00:58:23,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420976974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:58:23,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:58:23,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-16 00:58:23,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653068946] [2021-12-16 00:58:23,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:58:23,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-16 00:58:23,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:58:23,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-16 00:58:23,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-12-16 00:58:23,174 INFO L87 Difference]: Start difference. First operand 117957 states and 200349 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)