./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_spec1_productSimulator.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 c2ee13e5ae0bbed1c37b7eadefb29cbd7041f4c5e0d498dc3d4ea1e000526be8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:26:01,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:26:01,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:26:01,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:26:01,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:26:01,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:26:01,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:26:01,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:26:01,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:26:01,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:26:01,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:26:01,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:26:01,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:26:01,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:26:01,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:26:01,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:26:01,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:26:01,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:26:01,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:26:01,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:26:01,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:26:01,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:26:01,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:26:01,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:26:01,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:26:01,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:26:01,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:26:01,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:26:01,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:26:01,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:26:01,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:26:01,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:26:01,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:26:01,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:26:01,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:26:01,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:26:01,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:26:01,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:26:01,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:26:01,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:26:01,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:26:01,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:26:01,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:26:01,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:26:01,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:26:01,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:26:01,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:26:01,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:26:01,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:26:01,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:26:01,272 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:26:01,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:26:01,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:26:01,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:26:01,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:26:01,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:26:01,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:26:01,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:26:01,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:26:01,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:26:01,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:26:01,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:26:01,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:26:01,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:26:01,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:26:01,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:26:01,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:26:01,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:26:01,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:26:01,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2ee13e5ae0bbed1c37b7eadefb29cbd7041f4c5e0d498dc3d4ea1e000526be8 [2021-12-22 11:26:01,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:26:01,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:26:01,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:26:01,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:26:01,485 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:26:01,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_productSimulator.cil.c [2021-12-22 11:26:01,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2adad7e4/19816f157f7c45c387c1375a2b0fbc52/FLAG0a2cfd17b [2021-12-22 11:26:02,039 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:26:02,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_productSimulator.cil.c [2021-12-22 11:26:02,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2adad7e4/19816f157f7c45c387c1375a2b0fbc52/FLAG0a2cfd17b [2021-12-22 11:26:02,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2adad7e4/19816f157f7c45c387c1375a2b0fbc52 [2021-12-22 11:26:02,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:26:02,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:26:02,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:26:02,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:26:02,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:26:02,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:26:02" (1/1) ... [2021-12-22 11:26:02,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1108f302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:02, skipping insertion in model container [2021-12-22 11:26:02,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:26:02" (1/1) ... [2021-12-22 11:26:02,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:26:02,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:26:02,912 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_spec1_productSimulator.cil.c[35789,35802] [2021-12-22 11:26:03,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:26:03,018 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:26:03,079 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_spec1_productSimulator.cil.c[35789,35802] [2021-12-22 11:26:03,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:26:03,127 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:26:03,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03 WrapperNode [2021-12-22 11:26:03,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:26:03,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:26:03,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:26:03,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:26:03,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,231 INFO L137 Inliner]: procedures = 151, calls = 283, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1312 [2021-12-22 11:26:03,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:26:03,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:26:03,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:26:03,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:26:03,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:26:03,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:26:03,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:26:03,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:26:03,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (1/1) ... [2021-12-22 11:26:03,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:26:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:03,372 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) [2021-12-22 11:26:03,399 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 [2021-12-22 11:26:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-22 11:26:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-22 11:26:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2021-12-22 11:26:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2021-12-22 11:26:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2021-12-22 11:26:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2021-12-22 11:26:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-22 11:26:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-22 11:26:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-22 11:26:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-22 11:26:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-22 11:26:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-22 11:26:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-22 11:26:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-22 11:26:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2021-12-22 11:26:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2021-12-22 11:26:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-22 11:26:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-22 11:26:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2021-12-22 11:26:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2021-12-22 11:26:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-22 11:26:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-22 11:26:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-22 11:26:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-22 11:26:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-22 11:26:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-22 11:26:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2021-12-22 11:26:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2021-12-22 11:26:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2021-12-22 11:26:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2021-12-22 11:26:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-22 11:26:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-22 11:26:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-22 11:26:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-22 11:26:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-22 11:26:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-22 11:26:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-22 11:26:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2021-12-22 11:26:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2021-12-22 11:26:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-22 11:26:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-22 11:26:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-22 11:26:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-22 11:26:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-22 11:26:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-22 11:26:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2021-12-22 11:26:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2021-12-22 11:26:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:26:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-22 11:26:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-22 11:26:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-22 11:26:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-22 11:26:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2021-12-22 11:26:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2021-12-22 11:26:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2021-12-22 11:26:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2021-12-22 11:26:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2021-12-22 11:26:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2021-12-22 11:26:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-22 11:26:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-22 11:26:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-22 11:26:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-22 11:26:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-22 11:26:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-22 11:26:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-22 11:26:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-22 11:26:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-22 11:26:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-22 11:26:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-22 11:26:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-22 11:26:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-22 11:26:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-22 11:26:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2021-12-22 11:26:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2021-12-22 11:26:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2021-12-22 11:26:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2021-12-22 11:26:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-22 11:26:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-22 11:26:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-22 11:26:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-22 11:26:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:26:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-22 11:26:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-22 11:26:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2021-12-22 11:26:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2021-12-22 11:26:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-12-22 11:26:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-12-22 11:26:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-22 11:26:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-22 11:26:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:26:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:26:03,676 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:26:03,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:26:04,386 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:26:04,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:26:04,400 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 11:26:04,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:26:04 BoogieIcfgContainer [2021-12-22 11:26:04,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:26:04,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:26:04,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:26:04,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:26:04,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:26:02" (1/3) ... [2021-12-22 11:26:04,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a55f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:26:04, skipping insertion in model container [2021-12-22 11:26:04,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:26:03" (2/3) ... [2021-12-22 11:26:04,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a55f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:26:04, skipping insertion in model container [2021-12-22 11:26:04,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:26:04" (3/3) ... [2021-12-22 11:26:04,411 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_productSimulator.cil.c [2021-12-22 11:26:04,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:26:04,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:26:04,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:26:04,463 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 [2021-12-22 11:26:04,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:26:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 448 states have (on average 1.515625) internal successors, (679), 468 states have internal predecessors, (679), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2021-12-22 11:26:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-22 11:26:04,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:04,503 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:04,504 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1563756112, now seen corresponding path program 1 times [2021-12-22 11:26:04,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:04,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531416744] [2021-12-22 11:26:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:04,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 11:26:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:26:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:26:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:26:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 11:26:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 11:26:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 11:26:04,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:04,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531416744] [2021-12-22 11:26:04,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531416744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:04,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:04,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 11:26:04,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716153108] [2021-12-22 11:26:04,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:04,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:26:04,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:04,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:26:04,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 11:26:04,941 INFO L87 Difference]: Start difference. First operand has 603 states, 448 states have (on average 1.515625) internal successors, (679), 468 states have internal predecessors, (679), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:06,062 INFO L93 Difference]: Finished difference Result 1078 states and 1627 transitions. [2021-12-22 11:26:06,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 11:26:06,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 127 [2021-12-22 11:26:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:06,088 INFO L225 Difference]: With dead ends: 1078 [2021-12-22 11:26:06,088 INFO L226 Difference]: Without dead ends: 737 [2021-12-22 11:26:06,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:26:06,095 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 1355 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:06,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 1638 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 11:26:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-22 11:26:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 596. [2021-12-22 11:26:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 442 states have (on average 1.51131221719457) internal successors, (668), 461 states have internal predecessors, (668), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-22 11:26:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 887 transitions. [2021-12-22 11:26:06,205 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 887 transitions. Word has length 127 [2021-12-22 11:26:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:06,207 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 887 transitions. [2021-12-22 11:26:06,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 887 transitions. [2021-12-22 11:26:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 11:26:06,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:06,213 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:06,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 11:26:06,213 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash 445600766, now seen corresponding path program 1 times [2021-12-22 11:26:06,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:06,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480252135] [2021-12-22 11:26:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:06,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 11:26:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:26:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:26:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 11:26:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:26:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:26:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 11:26:06,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:06,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480252135] [2021-12-22 11:26:06,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480252135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:06,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:06,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 11:26:06,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323795864] [2021-12-22 11:26:06,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:06,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 11:26:06,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 11:26:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-22 11:26:06,371 INFO L87 Difference]: Start difference. First operand 596 states and 887 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:08,076 INFO L93 Difference]: Finished difference Result 1297 states and 1957 transitions. [2021-12-22 11:26:08,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 11:26:08,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2021-12-22 11:26:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:08,082 INFO L225 Difference]: With dead ends: 1297 [2021-12-22 11:26:08,082 INFO L226 Difference]: Without dead ends: 737 [2021-12-22 11:26:08,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-22 11:26:08,084 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 1372 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:08,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 2810 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 11:26:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-22 11:26:08,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 596. [2021-12-22 11:26:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 442 states have (on average 1.495475113122172) internal successors, (661), 461 states have internal predecessors, (661), 110 states have call successors, (110), 43 states have call predecessors, (110), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-22 11:26:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 880 transitions. [2021-12-22 11:26:08,134 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 880 transitions. Word has length 128 [2021-12-22 11:26:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:08,135 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 880 transitions. [2021-12-22 11:26:08,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:26:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 880 transitions. [2021-12-22 11:26:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-22 11:26:08,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:08,141 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:08,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 11:26:08,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:08,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:08,142 INFO L85 PathProgramCache]: Analyzing trace with hash -189778846, now seen corresponding path program 1 times [2021-12-22 11:26:08,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:08,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433689908] [2021-12-22 11:26:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:08,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 11:26:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 11:26:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:26:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:26:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 11:26:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 11:26:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 11:26:08,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:08,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433689908] [2021-12-22 11:26:08,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433689908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:08,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:08,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 11:26:08,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942283820] [2021-12-22 11:26:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:08,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 11:26:08,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 11:26:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 11:26:08,299 INFO L87 Difference]: Start difference. First operand 596 states and 880 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:09,240 INFO L93 Difference]: Finished difference Result 1307 states and 1989 transitions. [2021-12-22 11:26:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:09,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 133 [2021-12-22 11:26:09,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:09,245 INFO L225 Difference]: With dead ends: 1307 [2021-12-22 11:26:09,245 INFO L226 Difference]: Without dead ends: 736 [2021-12-22 11:26:09,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:09,263 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 2049 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:09,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 1553 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 11:26:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-12-22 11:26:09,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 595. [2021-12-22 11:26:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 443 states have (on average 1.4830699774266365) internal successors, (657), 460 states have internal predecessors, (657), 107 states have call successors, (107), 44 states have call predecessors, (107), 44 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2021-12-22 11:26:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 870 transitions. [2021-12-22 11:26:09,299 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 870 transitions. Word has length 133 [2021-12-22 11:26:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:09,299 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 870 transitions. [2021-12-22 11:26:09,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:26:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 870 transitions. [2021-12-22 11:26:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-22 11:26:09,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:09,301 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:09,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 11:26:09,302 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1444160713, now seen corresponding path program 1 times [2021-12-22 11:26:09,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:09,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187850806] [2021-12-22 11:26:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:09,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 11:26:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 11:26:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:26:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:26:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 11:26:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:26:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:26:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 11:26:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 11:26:09,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:09,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187850806] [2021-12-22 11:26:09,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187850806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:09,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:09,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 11:26:09,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970859086] [2021-12-22 11:26:09,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:09,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 11:26:09,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:09,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 11:26:09,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 11:26:09,450 INFO L87 Difference]: Start difference. First operand 595 states and 870 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:26:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:10,424 INFO L93 Difference]: Finished difference Result 1299 states and 1949 transitions. [2021-12-22 11:26:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:10,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 156 [2021-12-22 11:26:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:10,428 INFO L225 Difference]: With dead ends: 1299 [2021-12-22 11:26:10,428 INFO L226 Difference]: Without dead ends: 734 [2021-12-22 11:26:10,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:10,431 INFO L933 BasicCegarLoop]: 892 mSDtfsCounter, 2018 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:10,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 1587 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 11:26:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-12-22 11:26:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 594. [2021-12-22 11:26:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 443 states have (on average 1.4785553047404063) internal successors, (655), 459 states have internal predecessors, (655), 106 states have call successors, (106), 44 states have call predecessors, (106), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2021-12-22 11:26:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 866 transitions. [2021-12-22 11:26:10,474 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 866 transitions. Word has length 156 [2021-12-22 11:26:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:10,475 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 866 transitions. [2021-12-22 11:26:10,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:26:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 866 transitions. [2021-12-22 11:26:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-22 11:26:10,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:10,478 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:10,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 11:26:10,479 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:10,479 INFO L85 PathProgramCache]: Analyzing trace with hash 213248250, now seen corresponding path program 1 times [2021-12-22 11:26:10,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:10,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710428697] [2021-12-22 11:26:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:10,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 11:26:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 11:26:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:26:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:26:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:26:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:26:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 11:26:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 11:26:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 11:26:10,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:10,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710428697] [2021-12-22 11:26:10,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710428697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:10,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:10,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 11:26:10,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479147556] [2021-12-22 11:26:10,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:10,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 11:26:10,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 11:26:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 11:26:10,625 INFO L87 Difference]: Start difference. First operand 594 states and 866 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:26:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:11,489 INFO L93 Difference]: Finished difference Result 1279 states and 1896 transitions. [2021-12-22 11:26:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:11,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 157 [2021-12-22 11:26:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:11,494 INFO L225 Difference]: With dead ends: 1279 [2021-12-22 11:26:11,494 INFO L226 Difference]: Without dead ends: 731 [2021-12-22 11:26:11,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:11,501 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 2005 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:11,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 1483 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-22 11:26:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-12-22 11:26:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 591. [2021-12-22 11:26:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 443 states have (on average 1.4537246049661399) internal successors, (644), 454 states have internal predecessors, (644), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2021-12-22 11:26:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 849 transitions. [2021-12-22 11:26:11,525 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 849 transitions. Word has length 157 [2021-12-22 11:26:11,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:11,525 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 849 transitions. [2021-12-22 11:26:11,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:26:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 849 transitions. [2021-12-22 11:26:11,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-22 11:26:11,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:11,528 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:11,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 11:26:11,528 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2040504776, now seen corresponding path program 1 times [2021-12-22 11:26:11,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:11,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834835145] [2021-12-22 11:26:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:11,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:26:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:26:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 11:26:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:26:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 11:26:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 11:26:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-22 11:26:11,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834835145] [2021-12-22 11:26:11,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834835145] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530123805] [2021-12-22 11:26:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:11,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:11,731 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) [2021-12-22 11:26:11,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 11:26:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 11:26:12,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 11:26:12,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:12,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530123805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:12,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:12,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-22 11:26:12,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009024843] [2021-12-22 11:26:12,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:12,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:26:12,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:12,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:26:12,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:12,308 INFO L87 Difference]: Start difference. First operand 591 states and 849 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:12,328 INFO L93 Difference]: Finished difference Result 917 states and 1299 transitions. [2021-12-22 11:26:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:26:12,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 168 [2021-12-22 11:26:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:12,331 INFO L225 Difference]: With dead ends: 917 [2021-12-22 11:26:12,331 INFO L226 Difference]: Without dead ends: 594 [2021-12-22 11:26:12,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:12,333 INFO L933 BasicCegarLoop]: 845 mSDtfsCounter, 1 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1688 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 [2021-12-22 11:26:12,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1688 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-12-22 11:26:12,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 593. [2021-12-22 11:26:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 445 states have (on average 1.451685393258427) internal successors, (646), 456 states have internal predecessors, (646), 103 states have call successors, (103), 44 states have call predecessors, (103), 44 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2021-12-22 11:26:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 851 transitions. [2021-12-22 11:26:12,352 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 851 transitions. Word has length 168 [2021-12-22 11:26:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:12,353 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 851 transitions. [2021-12-22 11:26:12,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 851 transitions. [2021-12-22 11:26:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-22 11:26:12,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:12,355 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:12,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:12,570 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,SelfDestructingSolverStorable5 [2021-12-22 11:26:12,570 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1194825784, now seen corresponding path program 1 times [2021-12-22 11:26:12,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:12,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794395734] [2021-12-22 11:26:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:12,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:26:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:26:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 11:26:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 11:26:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 11:26:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 11:26:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:12,712 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 11:26:12,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:12,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794395734] [2021-12-22 11:26:12,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794395734] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:12,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722303235] [2021-12-22 11:26:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:12,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:12,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:12,714 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) [2021-12-22 11:26:12,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 11:26:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:26:13,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 11:26:13,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:13,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722303235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:13,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:13,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-22 11:26:13,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578871361] [2021-12-22 11:26:13,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:13,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:26:13,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:13,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:26:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:13,291 INFO L87 Difference]: Start difference. First operand 593 states and 851 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:13,320 INFO L93 Difference]: Finished difference Result 1206 states and 1763 transitions. [2021-12-22 11:26:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:26:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2021-12-22 11:26:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:13,323 INFO L225 Difference]: With dead ends: 1206 [2021-12-22 11:26:13,323 INFO L226 Difference]: Without dead ends: 691 [2021-12-22 11:26:13,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:13,325 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 165 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1670 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 [2021-12-22 11:26:13,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1670 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:26:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-12-22 11:26:13,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 683. [2021-12-22 11:26:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 521 states have (on average 1.4664107485604607) internal successors, (764), 532 states have internal predecessors, (764), 117 states have call successors, (117), 44 states have call predecessors, (117), 44 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2021-12-22 11:26:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 997 transitions. [2021-12-22 11:26:13,353 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 997 transitions. Word has length 176 [2021-12-22 11:26:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:13,354 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 997 transitions. [2021-12-22 11:26:13,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 997 transitions. [2021-12-22 11:26:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-22 11:26:13,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:13,356 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:13,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:13,568 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,SelfDestructingSolverStorable6 [2021-12-22 11:26:13,568 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:13,569 INFO L85 PathProgramCache]: Analyzing trace with hash 46533217, now seen corresponding path program 1 times [2021-12-22 11:26:13,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:13,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134144691] [2021-12-22 11:26:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:13,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:26:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:26:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:26:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:26:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 11:26:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 11:26:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 11:26:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 11:26:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 11:26:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 11:26:13,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:13,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134144691] [2021-12-22 11:26:13,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134144691] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:13,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499938388] [2021-12-22 11:26:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:13,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:13,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:13,820 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) [2021-12-22 11:26:13,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 11:26:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 11:26:14,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-22 11:26:14,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:14,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499938388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:14,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:14,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2021-12-22 11:26:14,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669138314] [2021-12-22 11:26:14,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:14,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 11:26:14,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:14,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 11:26:14,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-22 11:26:14,450 INFO L87 Difference]: Start difference. First operand 683 states and 997 transitions. Second operand has 8 states, 6 states have (on average 18.333333333333332) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-22 11:26:14,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:14,600 INFO L93 Difference]: Finished difference Result 1313 states and 1931 transitions. [2021-12-22 11:26:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 11:26:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 18.333333333333332) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2021-12-22 11:26:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:14,604 INFO L225 Difference]: With dead ends: 1313 [2021-12-22 11:26:14,605 INFO L226 Difference]: Without dead ends: 685 [2021-12-22 11:26:14,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-12-22 11:26:14,607 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 363 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5443 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:14,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 5443 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:26:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-22 11:26:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2021-12-22 11:26:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 522 states have (on average 1.4655172413793103) internal successors, (765), 534 states have internal predecessors, (765), 117 states have call successors, (117), 44 states have call predecessors, (117), 45 states have return successors, (118), 115 states have call predecessors, (118), 116 states have call successors, (118) [2021-12-22 11:26:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1000 transitions. [2021-12-22 11:26:14,656 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1000 transitions. Word has length 184 [2021-12-22 11:26:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:14,656 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 1000 transitions. [2021-12-22 11:26:14,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 18.333333333333332) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-22 11:26:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1000 transitions. [2021-12-22 11:26:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-22 11:26:14,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:14,659 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:14,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:14,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:14,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:14,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:14,876 INFO L85 PathProgramCache]: Analyzing trace with hash -297613258, now seen corresponding path program 1 times [2021-12-22 11:26:14,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:14,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423770177] [2021-12-22 11:26:14,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:14,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:26:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:14,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 11:26:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:26:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 11:26:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 11:26:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 11:26:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 11:26:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-22 11:26:15,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:15,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423770177] [2021-12-22 11:26:15,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423770177] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:15,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510596214] [2021-12-22 11:26:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:15,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:15,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:15,025 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) [2021-12-22 11:26:15,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 11:26:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:26:15,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-22 11:26:15,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:26:15,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510596214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:15,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:26:15,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-12-22 11:26:15,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433410225] [2021-12-22 11:26:15,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:15,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 11:26:15,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:15,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 11:26:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:26:15,528 INFO L87 Difference]: Start difference. First operand 685 states and 1000 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 11:26:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:15,631 INFO L93 Difference]: Finished difference Result 1314 states and 1935 transitions. [2021-12-22 11:26:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 11:26:15,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 178 [2021-12-22 11:26:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:15,634 INFO L225 Difference]: With dead ends: 1314 [2021-12-22 11:26:15,634 INFO L226 Difference]: Without dead ends: 687 [2021-12-22 11:26:15,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-12-22 11:26:15,637 INFO L933 BasicCegarLoop]: 835 mSDtfsCounter, 361 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3771 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:15,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3771 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:26:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2021-12-22 11:26:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2021-12-22 11:26:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 536 states have internal predecessors, (766), 117 states have call successors, (117), 44 states have call predecessors, (117), 46 states have return successors, (123), 115 states have call predecessors, (123), 116 states have call successors, (123) [2021-12-22 11:26:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1006 transitions. [2021-12-22 11:26:15,660 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1006 transitions. Word has length 178 [2021-12-22 11:26:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:15,661 INFO L470 AbstractCegarLoop]: Abstraction has 687 states and 1006 transitions. [2021-12-22 11:26:15,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 11:26:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1006 transitions. [2021-12-22 11:26:15,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-22 11:26:15,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:15,663 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:15,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:15,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:15,882 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1341623100, now seen corresponding path program 1 times [2021-12-22 11:26:15,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:15,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713997003] [2021-12-22 11:26:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:15,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:26:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 11:26:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:26:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:26:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 11:26:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 11:26:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 11:26:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 11:26:16,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:16,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713997003] [2021-12-22 11:26:16,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713997003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:16,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:16,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:26:16,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892687936] [2021-12-22 11:26:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:16,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:26:16,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:26:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:16,057 INFO L87 Difference]: Start difference. First operand 687 states and 1006 transitions. Second operand has 12 states, 10 states have (on average 10.3) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:18,777 INFO L93 Difference]: Finished difference Result 1446 states and 2162 transitions. [2021-12-22 11:26:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 11:26:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 179 [2021-12-22 11:26:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:18,781 INFO L225 Difference]: With dead ends: 1446 [2021-12-22 11:26:18,781 INFO L226 Difference]: Without dead ends: 831 [2021-12-22 11:26:18,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-22 11:26:18,783 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 2158 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 4427 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2158 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 5306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 4427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:18,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2158 Valid, 3588 Invalid, 5306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 4427 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 11:26:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-12-22 11:26:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 687. [2021-12-22 11:26:18,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 536 states have internal predecessors, (766), 117 states have call successors, (117), 44 states have call predecessors, (117), 46 states have return successors, (122), 115 states have call predecessors, (122), 116 states have call successors, (122) [2021-12-22 11:26:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1005 transitions. [2021-12-22 11:26:18,815 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1005 transitions. Word has length 179 [2021-12-22 11:26:18,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:18,816 INFO L470 AbstractCegarLoop]: Abstraction has 687 states and 1005 transitions. [2021-12-22 11:26:18,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:18,816 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1005 transitions. [2021-12-22 11:26:18,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-22 11:26:18,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:18,818 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:18,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 11:26:18,819 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -59480157, now seen corresponding path program 2 times [2021-12-22 11:26:18,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:18,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721355570] [2021-12-22 11:26:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:18,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:26:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:26:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:26:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 11:26:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 11:26:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 11:26:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-22 11:26:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 11:26:18,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:18,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721355570] [2021-12-22 11:26:18,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721355570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:18,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:18,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:26:18,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958011459] [2021-12-22 11:26:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:18,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:26:18,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:26:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:18,980 INFO L87 Difference]: Start difference. First operand 687 states and 1005 transitions. Second operand has 12 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:21,395 INFO L93 Difference]: Finished difference Result 1448 states and 2165 transitions. [2021-12-22 11:26:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 11:26:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 180 [2021-12-22 11:26:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:21,399 INFO L225 Difference]: With dead ends: 1448 [2021-12-22 11:26:21,399 INFO L226 Difference]: Without dead ends: 833 [2021-12-22 11:26:21,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-12-22 11:26:21,401 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 2167 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 4250 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 4250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:21,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2167 Valid, 3586 Invalid, 5150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 4250 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 11:26:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-12-22 11:26:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 689. [2021-12-22 11:26:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 524 states have (on average 1.463740458015267) internal successors, (767), 538 states have internal predecessors, (767), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (124), 115 states have call predecessors, (124), 116 states have call successors, (124) [2021-12-22 11:26:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1008 transitions. [2021-12-22 11:26:21,428 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1008 transitions. Word has length 180 [2021-12-22 11:26:21,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:21,428 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 1008 transitions. [2021-12-22 11:26:21,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1008 transitions. [2021-12-22 11:26:21,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-22 11:26:21,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:21,430 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:21,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 11:26:21,430 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash 48525859, now seen corresponding path program 1 times [2021-12-22 11:26:21,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:21,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53669992] [2021-12-22 11:26:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:21,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 11:26:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 11:26:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 11:26:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 11:26:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:26:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 11:26:21,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53669992] [2021-12-22 11:26:21,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53669992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:21,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:21,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:26:21,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873595263] [2021-12-22 11:26:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:21,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:26:21,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:26:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:26:21,568 INFO L87 Difference]: Start difference. First operand 689 states and 1008 transitions. Second operand has 12 states, 10 states have (on average 10.5) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:23,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:23,914 INFO L93 Difference]: Finished difference Result 1446 states and 2162 transitions. [2021-12-22 11:26:23,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 11:26:23,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.5) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2021-12-22 11:26:23,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:23,918 INFO L225 Difference]: With dead ends: 1446 [2021-12-22 11:26:23,919 INFO L226 Difference]: Without dead ends: 831 [2021-12-22 11:26:23,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-12-22 11:26:23,921 INFO L933 BasicCegarLoop]: 844 mSDtfsCounter, 2172 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 895 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:23,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2172 Valid, 3554 Invalid, 5102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [895 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 11:26:23,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-12-22 11:26:23,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 689. [2021-12-22 11:26:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 524 states have (on average 1.463740458015267) internal successors, (767), 538 states have internal predecessors, (767), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (124), 115 states have call predecessors, (124), 116 states have call successors, (124) [2021-12-22 11:26:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1008 transitions. [2021-12-22 11:26:23,959 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1008 transitions. Word has length 181 [2021-12-22 11:26:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:23,961 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 1008 transitions. [2021-12-22 11:26:23,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.5) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1008 transitions. [2021-12-22 11:26:23,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-22 11:26:23,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:23,963 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:23,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 11:26:23,964 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:23,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1106363937, now seen corresponding path program 1 times [2021-12-22 11:26:23,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:23,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377145382] [2021-12-22 11:26:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:23,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:26:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 11:26:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 11:26:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 11:26:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 11:26:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:26:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-22 11:26:24,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:24,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377145382] [2021-12-22 11:26:24,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377145382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:24,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:24,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-22 11:26:24,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771881733] [2021-12-22 11:26:24,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:24,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 11:26:24,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 11:26:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:24,145 INFO L87 Difference]: Start difference. First operand 689 states and 1008 transitions. Second operand has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:26,730 INFO L93 Difference]: Finished difference Result 1443 states and 2156 transitions. [2021-12-22 11:26:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 11:26:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2021-12-22 11:26:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:26,734 INFO L225 Difference]: With dead ends: 1443 [2021-12-22 11:26:26,734 INFO L226 Difference]: Without dead ends: 831 [2021-12-22 11:26:26,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-22 11:26:26,737 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 1946 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 5202 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 6040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 5202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:26,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1967 Valid, 4116 Invalid, 6040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 5202 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 11:26:26,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-12-22 11:26:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 689. [2021-12-22 11:26:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 524 states have (on average 1.463740458015267) internal successors, (767), 538 states have internal predecessors, (767), 117 states have call successors, (117), 44 states have call predecessors, (117), 47 states have return successors, (123), 115 states have call predecessors, (123), 116 states have call successors, (123) [2021-12-22 11:26:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1007 transitions. [2021-12-22 11:26:26,768 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1007 transitions. Word has length 181 [2021-12-22 11:26:26,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:26,769 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 1007 transitions. [2021-12-22 11:26:26,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-12-22 11:26:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1007 transitions. [2021-12-22 11:26:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-22 11:26:26,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:26,771 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:26,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 11:26:26,771 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash 379745531, now seen corresponding path program 1 times [2021-12-22 11:26:26,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:26,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772959683] [2021-12-22 11:26:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:26,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 11:26:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:26:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:26:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:26:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 11:26:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-22 11:26:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-22 11:26:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-22 11:26:26,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772959683] [2021-12-22 11:26:26,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772959683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:26,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:26,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-22 11:26:26,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503139708] [2021-12-22 11:26:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:26,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 11:26:26,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 11:26:26,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:26,951 INFO L87 Difference]: Start difference. First operand 689 states and 1007 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-22 11:26:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:29,564 INFO L93 Difference]: Finished difference Result 1445 states and 2162 transitions. [2021-12-22 11:26:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 11:26:29,565 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 189 [2021-12-22 11:26:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:29,578 INFO L225 Difference]: With dead ends: 1445 [2021-12-22 11:26:29,579 INFO L226 Difference]: Without dead ends: 833 [2021-12-22 11:26:29,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-12-22 11:26:29,581 INFO L933 BasicCegarLoop]: 849 mSDtfsCounter, 1951 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 5899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1971 Valid, 4107 Invalid, 5899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 5045 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 11:26:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-12-22 11:26:29,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 691. [2021-12-22 11:26:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 540 states have internal predecessors, (768), 117 states have call successors, (117), 44 states have call predecessors, (117), 48 states have return successors, (128), 115 states have call predecessors, (128), 116 states have call successors, (128) [2021-12-22 11:26:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1013 transitions. [2021-12-22 11:26:29,612 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1013 transitions. Word has length 189 [2021-12-22 11:26:29,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:29,612 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1013 transitions. [2021-12-22 11:26:29,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-22 11:26:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1013 transitions. [2021-12-22 11:26:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-22 11:26:29,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:29,614 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:29,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 11:26:29,615 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:29,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:29,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1061719236, now seen corresponding path program 1 times [2021-12-22 11:26:29,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:29,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501622045] [2021-12-22 11:26:29,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:29,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:26:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 11:26:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-22 11:26:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:26:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 11:26:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 11:26:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:29,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:29,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501622045] [2021-12-22 11:26:29,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501622045] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:26:29,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921944889] [2021-12-22 11:26:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:29,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:26:29,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:26:29,763 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) [2021-12-22 11:26:29,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 11:26:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:26:30,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:26:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:30,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:26:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:30,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921944889] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:26:30,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:26:30,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-22 11:26:30,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236492045] [2021-12-22 11:26:30,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:26:30,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 11:26:30,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 11:26:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-22 11:26:30,518 INFO L87 Difference]: Start difference. First operand 691 states and 1013 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-22 11:26:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:32,615 INFO L93 Difference]: Finished difference Result 1719 states and 2645 transitions. [2021-12-22 11:26:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 11:26:32,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2021-12-22 11:26:32,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:32,621 INFO L225 Difference]: With dead ends: 1719 [2021-12-22 11:26:32,621 INFO L226 Difference]: Without dead ends: 1396 [2021-12-22 11:26:32,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:26:32,624 INFO L933 BasicCegarLoop]: 976 mSDtfsCounter, 2425 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2939 mSolverCounterSat, 1011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 3950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1011 IncrementalHoareTripleChecker+Valid, 2939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:32,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2479 Valid, 3482 Invalid, 3950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1011 Valid, 2939 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-22 11:26:32,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2021-12-22 11:26:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1230. [2021-12-22 11:26:32,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 985 states have (on average 1.5147208121827411) internal successors, (1492), 1000 states have internal predecessors, (1492), 196 states have call successors, (196), 44 states have call predecessors, (196), 48 states have return successors, (217), 194 states have call predecessors, (217), 195 states have call successors, (217) [2021-12-22 11:26:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1905 transitions. [2021-12-22 11:26:32,676 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1905 transitions. Word has length 183 [2021-12-22 11:26:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:32,676 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1905 transitions. [2021-12-22 11:26:32,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (46), 6 states have call predecessors, (46), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-22 11:26:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1905 transitions. [2021-12-22 11:26:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-22 11:26:32,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:32,682 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:32,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 11:26:32,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-22 11:26:32,895 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:32,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1948540186, now seen corresponding path program 1 times [2021-12-22 11:26:32,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:32,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746198627] [2021-12-22 11:26:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:32,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:26:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:26:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 11:26:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:33,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 11:26:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-22 11:26:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-22 11:26:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:33,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:33,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746198627] [2021-12-22 11:26:33,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746198627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:33,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:33,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:33,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042225890] [2021-12-22 11:26:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:33,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:33,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:33,011 INFO L87 Difference]: Start difference. First operand 1230 states and 1905 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:34,523 INFO L93 Difference]: Finished difference Result 2976 states and 4729 transitions. [2021-12-22 11:26:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2021-12-22 11:26:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:34,530 INFO L225 Difference]: With dead ends: 2976 [2021-12-22 11:26:34,530 INFO L226 Difference]: Without dead ends: 1881 [2021-12-22 11:26:34,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:34,533 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 1945 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:34,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 2170 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2021-12-22 11:26:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1731. [2021-12-22 11:26:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1407 states have (on average 1.5266524520255864) internal successors, (2148), 1422 states have internal predecessors, (2148), 275 states have call successors, (275), 44 states have call predecessors, (275), 48 states have return successors, (306), 273 states have call predecessors, (306), 274 states have call successors, (306) [2021-12-22 11:26:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2729 transitions. [2021-12-22 11:26:34,596 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2729 transitions. Word has length 187 [2021-12-22 11:26:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:34,596 INFO L470 AbstractCegarLoop]: Abstraction has 1731 states and 2729 transitions. [2021-12-22 11:26:34,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2729 transitions. [2021-12-22 11:26:34,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-22 11:26:34,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:34,601 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:34,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 11:26:34,601 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:34,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:34,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2115064731, now seen corresponding path program 1 times [2021-12-22 11:26:34,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:34,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699396345] [2021-12-22 11:26:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:34,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 11:26:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 11:26:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 11:26:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 11:26:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:26:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 11:26:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:34,711 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:34,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:34,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699396345] [2021-12-22 11:26:34,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699396345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:34,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:34,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:34,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459600155] [2021-12-22 11:26:34,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:34,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:34,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:34,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:34,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:34,713 INFO L87 Difference]: Start difference. First operand 1731 states and 2729 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:36,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:36,286 INFO L93 Difference]: Finished difference Result 4223 states and 6786 transitions. [2021-12-22 11:26:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:36,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2021-12-22 11:26:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:36,295 INFO L225 Difference]: With dead ends: 4223 [2021-12-22 11:26:36,296 INFO L226 Difference]: Without dead ends: 2690 [2021-12-22 11:26:36,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:36,299 INFO L933 BasicCegarLoop]: 896 mSDtfsCounter, 1966 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:36,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 2146 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 11:26:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2021-12-22 11:26:36,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2540. [2021-12-22 11:26:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2097 states have (on average 1.5393419170243205) internal successors, (3228), 2112 states have internal predecessors, (3228), 394 states have call successors, (394), 44 states have call predecessors, (394), 48 states have return successors, (425), 392 states have call predecessors, (425), 393 states have call successors, (425) [2021-12-22 11:26:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 4047 transitions. [2021-12-22 11:26:36,404 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 4047 transitions. Word has length 188 [2021-12-22 11:26:36,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:36,404 INFO L470 AbstractCegarLoop]: Abstraction has 2540 states and 4047 transitions. [2021-12-22 11:26:36,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 4047 transitions. [2021-12-22 11:26:36,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-22 11:26:36,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:36,418 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:36,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 11:26:36,418 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:36,419 INFO L85 PathProgramCache]: Analyzing trace with hash -662144991, now seen corresponding path program 1 times [2021-12-22 11:26:36,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:36,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421074852] [2021-12-22 11:26:36,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:36,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:26:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 11:26:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:26:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 11:26:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-22 11:26:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-22 11:26:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:36,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:36,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421074852] [2021-12-22 11:26:36,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421074852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:36,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:36,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:36,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493008001] [2021-12-22 11:26:36,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:36,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:36,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:36,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:36,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:36,543 INFO L87 Difference]: Start difference. First operand 2540 states and 4047 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:38,031 INFO L93 Difference]: Finished difference Result 6122 states and 9943 transitions. [2021-12-22 11:26:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2021-12-22 11:26:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:38,045 INFO L225 Difference]: With dead ends: 6122 [2021-12-22 11:26:38,045 INFO L226 Difference]: Without dead ends: 3937 [2021-12-22 11:26:38,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:38,049 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 1978 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:38,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1997 Valid, 2088 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:38,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2021-12-22 11:26:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3787. [2021-12-22 11:26:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3787 states, 3182 states have (on average 1.549968573224387) internal successors, (4932), 3197 states have internal predecessors, (4932), 556 states have call successors, (556), 44 states have call predecessors, (556), 48 states have return successors, (603), 554 states have call predecessors, (603), 555 states have call successors, (603) [2021-12-22 11:26:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3787 states to 3787 states and 6091 transitions. [2021-12-22 11:26:38,221 INFO L78 Accepts]: Start accepts. Automaton has 3787 states and 6091 transitions. Word has length 189 [2021-12-22 11:26:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:38,222 INFO L470 AbstractCegarLoop]: Abstraction has 3787 states and 6091 transitions. [2021-12-22 11:26:38,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3787 states and 6091 transitions. [2021-12-22 11:26:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-22 11:26:38,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:38,231 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:38,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 11:26:38,231 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:38,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1050601667, now seen corresponding path program 1 times [2021-12-22 11:26:38,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:38,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261492447] [2021-12-22 11:26:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:38,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 11:26:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 11:26:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 11:26:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 11:26:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 11:26:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:38,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:38,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261492447] [2021-12-22 11:26:38,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261492447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:38,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:38,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:38,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035477975] [2021-12-22 11:26:38,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:38,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:38,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:38,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:38,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:38,350 INFO L87 Difference]: Start difference. First operand 3787 states and 6091 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:39,896 INFO L93 Difference]: Finished difference Result 9124 states and 14952 transitions. [2021-12-22 11:26:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2021-12-22 11:26:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:39,920 INFO L225 Difference]: With dead ends: 9124 [2021-12-22 11:26:39,931 INFO L226 Difference]: Without dead ends: 5951 [2021-12-22 11:26:39,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:39,939 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 1975 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:39,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 2091 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-12-22 11:26:40,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 5801. [2021-12-22 11:26:40,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 4951 states have (on average 1.5588769945465561) internal successors, (7718), 4966 states have internal predecessors, (7718), 801 states have call successors, (801), 44 states have call predecessors, (801), 48 states have return successors, (874), 799 states have call predecessors, (874), 800 states have call successors, (874) [2021-12-22 11:26:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 9393 transitions. [2021-12-22 11:26:40,172 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 9393 transitions. Word has length 190 [2021-12-22 11:26:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:40,172 INFO L470 AbstractCegarLoop]: Abstraction has 5801 states and 9393 transitions. [2021-12-22 11:26:40,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 9393 transitions. [2021-12-22 11:26:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-22 11:26:40,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:40,182 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:40,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 11:26:40,182 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash -268075998, now seen corresponding path program 1 times [2021-12-22 11:26:40,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:40,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604832808] [2021-12-22 11:26:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:40,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 11:26:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 11:26:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 11:26:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 11:26:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 11:26:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 11:26:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 11:26:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:40,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:40,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604832808] [2021-12-22 11:26:40,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604832808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:40,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:40,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:40,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904779102] [2021-12-22 11:26:40,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:40,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:40,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:40,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:40,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:40,287 INFO L87 Difference]: Start difference. First operand 5801 states and 9393 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:41,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:41,962 INFO L93 Difference]: Finished difference Result 14117 states and 23250 transitions. [2021-12-22 11:26:41,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:41,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 198 [2021-12-22 11:26:41,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:41,991 INFO L225 Difference]: With dead ends: 14117 [2021-12-22 11:26:41,992 INFO L226 Difference]: Without dead ends: 9326 [2021-12-22 11:26:42,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:42,005 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 1943 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 901 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:42,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 2135 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [901 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:42,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9326 states. [2021-12-22 11:26:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9326 to 9176. [2021-12-22 11:26:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 7833 states have (on average 1.5564917656070472) internal successors, (12192), 7848 states have internal predecessors, (12192), 1294 states have call successors, (1294), 44 states have call predecessors, (1294), 48 states have return successors, (1411), 1292 states have call predecessors, (1411), 1293 states have call successors, (1411) [2021-12-22 11:26:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 14897 transitions. [2021-12-22 11:26:42,361 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 14897 transitions. Word has length 198 [2021-12-22 11:26:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:42,361 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 14897 transitions. [2021-12-22 11:26:42,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 14897 transitions. [2021-12-22 11:26:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-22 11:26:42,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:42,375 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:42,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 11:26:42,376 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 202366698, now seen corresponding path program 1 times [2021-12-22 11:26:42,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:42,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004892098] [2021-12-22 11:26:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:42,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:26:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 11:26:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:26:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 11:26:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-22 11:26:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-22 11:26:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 11:26:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:42,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:42,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004892098] [2021-12-22 11:26:42,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004892098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:42,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:42,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:42,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948695364] [2021-12-22 11:26:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:42,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:42,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:42,505 INFO L87 Difference]: Start difference. First operand 9176 states and 14897 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:44,408 INFO L93 Difference]: Finished difference Result 23070 states and 38126 transitions. [2021-12-22 11:26:44,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:44,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 199 [2021-12-22 11:26:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:44,457 INFO L225 Difference]: With dead ends: 23070 [2021-12-22 11:26:44,457 INFO L226 Difference]: Without dead ends: 15400 [2021-12-22 11:26:44,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:44,481 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 1944 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:44,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1962 Valid, 2122 Invalid, 2137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15400 states. [2021-12-22 11:26:45,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15400 to 15250. [2021-12-22 11:26:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15250 states, 13085 states have (on average 1.5623996943064578) internal successors, (20444), 13100 states have internal predecessors, (20444), 2116 states have call successors, (2116), 44 states have call predecessors, (2116), 48 states have return successors, (2311), 2114 states have call predecessors, (2311), 2115 states have call successors, (2311) [2021-12-22 11:26:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15250 states to 15250 states and 24871 transitions. [2021-12-22 11:26:45,197 INFO L78 Accepts]: Start accepts. Automaton has 15250 states and 24871 transitions. Word has length 199 [2021-12-22 11:26:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:45,198 INFO L470 AbstractCegarLoop]: Abstraction has 15250 states and 24871 transitions. [2021-12-22 11:26:45,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 15250 states and 24871 transitions. [2021-12-22 11:26:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-22 11:26:45,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:45,217 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:45,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-22 11:26:45,217 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:45,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:45,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1690341565, now seen corresponding path program 1 times [2021-12-22 11:26:45,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:45,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111208195] [2021-12-22 11:26:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:45,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 11:26:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 11:26:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 11:26:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 11:26:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 11:26:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 11:26:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:45,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:45,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111208195] [2021-12-22 11:26:45,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111208195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:45,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:45,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:45,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095065794] [2021-12-22 11:26:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:45,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:45,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:45,326 INFO L87 Difference]: Start difference. First operand 15250 states and 24871 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:47,473 INFO L93 Difference]: Finished difference Result 36879 states and 60510 transitions. [2021-12-22 11:26:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:47,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 193 [2021-12-22 11:26:47,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:47,542 INFO L225 Difference]: With dead ends: 36879 [2021-12-22 11:26:47,542 INFO L226 Difference]: Without dead ends: 24269 [2021-12-22 11:26:47,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:47,569 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 1950 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 862 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:47,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1968 Valid, 2120 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [862 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24269 states. [2021-12-22 11:26:48,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24269 to 24119. [2021-12-22 11:26:48,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24119 states, 20751 states have (on average 1.535444074984338) internal successors, (31862), 20766 states have internal predecessors, (31862), 3319 states have call successors, (3319), 44 states have call predecessors, (3319), 48 states have return successors, (3658), 3317 states have call predecessors, (3658), 3318 states have call successors, (3658) [2021-12-22 11:26:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24119 states to 24119 states and 38839 transitions. [2021-12-22 11:26:48,692 INFO L78 Accepts]: Start accepts. Automaton has 24119 states and 38839 transitions. Word has length 193 [2021-12-22 11:26:48,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:48,693 INFO L470 AbstractCegarLoop]: Abstraction has 24119 states and 38839 transitions. [2021-12-22 11:26:48,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 24119 states and 38839 transitions. [2021-12-22 11:26:48,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-22 11:26:48,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:48,714 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:48,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-22 11:26:48,715 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1661640798, now seen corresponding path program 1 times [2021-12-22 11:26:48,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:48,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600086179] [2021-12-22 11:26:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:48,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 11:26:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 11:26:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 11:26:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 11:26:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-22 11:26:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 11:26:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-22 11:26:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:48,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:48,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600086179] [2021-12-22 11:26:48,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600086179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:48,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:48,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:48,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173529644] [2021-12-22 11:26:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:48,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:48,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:48,812 INFO L87 Difference]: Start difference. First operand 24119 states and 38839 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:51,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:51,425 INFO L93 Difference]: Finished difference Result 63732 states and 104198 transitions. [2021-12-22 11:26:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:51,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 201 [2021-12-22 11:26:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:51,548 INFO L225 Difference]: With dead ends: 63732 [2021-12-22 11:26:51,548 INFO L226 Difference]: Without dead ends: 43065 [2021-12-22 11:26:51,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:51,584 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 1944 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:51,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 2102 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43065 states. [2021-12-22 11:26:53,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43065 to 42915. [2021-12-22 11:26:53,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42915 states, 37097 states have (on average 1.5354880448553792) internal successors, (56962), 37112 states have internal predecessors, (56962), 5769 states have call successors, (5769), 44 states have call predecessors, (5769), 48 states have return successors, (6382), 5767 states have call predecessors, (6382), 5768 states have call successors, (6382) [2021-12-22 11:26:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42915 states to 42915 states and 69113 transitions. [2021-12-22 11:26:53,498 INFO L78 Accepts]: Start accepts. Automaton has 42915 states and 69113 transitions. Word has length 201 [2021-12-22 11:26:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:26:53,498 INFO L470 AbstractCegarLoop]: Abstraction has 42915 states and 69113 transitions. [2021-12-22 11:26:53,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 11:26:53,499 INFO L276 IsEmpty]: Start isEmpty. Operand 42915 states and 69113 transitions. [2021-12-22 11:26:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-22 11:26:53,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:26:53,520 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:26:53,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-22 11:26:53,520 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__before__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:26:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:26:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1408394320, now seen corresponding path program 1 times [2021-12-22 11:26:53,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:26:53,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871374774] [2021-12-22 11:26:53,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:26:53,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:26:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:26:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 11:26:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 11:26:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:26:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:26:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 11:26:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 11:26:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:26:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:26:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:26:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:26:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:26:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:26:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:26:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:26:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:26:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:26:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 11:26:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 11:26:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 11:26:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 11:26:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:26:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-22 11:26:53,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:26:53,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871374774] [2021-12-22 11:26:53,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871374774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:26:53,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:26:53,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:26:53,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824154963] [2021-12-22 11:26:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:26:53,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:26:53,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:26:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:26:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:26:53,816 INFO L87 Difference]: Start difference. First operand 42915 states and 69113 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 11:26:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:26:57,441 INFO L93 Difference]: Finished difference Result 116394 states and 190152 transitions. [2021-12-22 11:26:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:26:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 195 [2021-12-22 11:26:57,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:26:57,669 INFO L225 Difference]: With dead ends: 116394 [2021-12-22 11:26:57,669 INFO L226 Difference]: Without dead ends: 78107 [2021-12-22 11:26:57,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:26:57,745 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 1941 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:26:57,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1960 Valid, 2119 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:26:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78107 states.