./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec6_product32.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 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:00:38,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:00:38,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:00:38,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:00:38,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:00:38,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:00:38,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:00:38,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:00:38,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:00:38,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:00:38,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:00:38,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:00:38,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:00:38,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:00:38,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:00:38,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:00:38,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:00:38,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:00:38,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:00:38,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:00:38,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:00:38,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:00:38,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:00:38,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:00:38,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:00:38,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:00:38,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:00:38,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:00:38,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:00:38,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:00:38,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:00:38,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:00:38,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:00:38,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:00:38,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:00:38,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:00:38,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:00:38,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:00:38,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:00:38,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:00:38,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:00:38,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:00:38,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:00:38,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:00:38,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:00:38,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:00:38,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:00:38,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:00:38,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:00:38,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:00:38,444 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:00:38,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:00:38,445 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:00:38,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:00:38,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:00:38,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:00:38,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:00:38,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:00:38,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:00:38,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:00:38,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:00:38,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:00:38,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:00:38,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:00:38,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:00:38,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:00:38,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d [2021-12-17 15:00:38,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:00:38,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:00:38,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:00:38,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:00:38,639 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:00:38,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2021-12-17 15:00:38,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fd0e3b/e4f445a03a7b40a1b121440a4c8c03f9/FLAG505c7b189 [2021-12-17 15:00:39,159 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:00:39,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2021-12-17 15:00:39,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fd0e3b/e4f445a03a7b40a1b121440a4c8c03f9/FLAG505c7b189 [2021-12-17 15:00:39,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fd0e3b/e4f445a03a7b40a1b121440a4c8c03f9 [2021-12-17 15:00:39,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:00:39,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:00:39,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:00:39,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:00:39,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:00:39,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:00:39" (1/1) ... [2021-12-17 15:00:39,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e015473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:39, skipping insertion in model container [2021-12-17 15:00:39,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:00:39" (1/1) ... [2021-12-17 15:00:39,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:00:39,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:00:39,957 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_spec6_product32.cil.c[40215,40228] [2021-12-17 15:00:40,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:00:40,074 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:00:40,110 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_spec6_product32.cil.c[40215,40228] [2021-12-17 15:00:40,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:00:40,150 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:00:40,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40 WrapperNode [2021-12-17 15:00:40,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:00:40,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:00:40,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:00:40,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:00:40,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,239 INFO L137 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1014 [2021-12-17 15:00:40,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:00:40,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:00:40,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:00:40,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:00:40,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:00:40,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:00:40,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:00:40,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:00:40,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (1/1) ... [2021-12-17 15:00:40,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:00:40,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:40,389 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) [2021-12-17 15:00:40,410 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 [2021-12-17 15:00:40,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 15:00:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 15:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 15:00:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 15:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 15:00:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 15:00:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 15:00:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 15:00:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 15:00:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 15:00:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 15:00:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 15:00:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-17 15:00:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-17 15:00:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 15:00:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 15:00:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 15:00:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 15:00:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 15:00:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 15:00:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 15:00:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 15:00:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 15:00:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 15:00:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 15:00:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 15:00:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 15:00:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 15:00:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 15:00:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 15:00:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 15:00:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:00:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 15:00:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 15:00:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 15:00:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 15:00:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 15:00:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 15:00:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 15:00:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 15:00:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 15:00:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 15:00:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 15:00:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 15:00:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 15:00:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 15:00:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 15:00:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 15:00:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 15:00:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 15:00:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 15:00:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 15:00:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 15:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 15:00:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:00:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 15:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 15:00:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 15:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 15:00:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:00:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:00:40,633 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:00:40,639 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:00:41,174 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:00:41,181 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:00:41,181 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 15:00:41,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:00:41 BoogieIcfgContainer [2021-12-17 15:00:41,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:00:41,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:00:41,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:00:41,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:00:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:00:39" (1/3) ... [2021-12-17 15:00:41,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f78eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:00:41, skipping insertion in model container [2021-12-17 15:00:41,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:40" (2/3) ... [2021-12-17 15:00:41,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f78eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:00:41, skipping insertion in model container [2021-12-17 15:00:41,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:00:41" (3/3) ... [2021-12-17 15:00:41,188 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2021-12-17 15:00:41,191 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:00:41,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:00:41,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:00:41,227 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 [2021-12-17 15:00:41,227 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:00:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 430 states, 333 states have (on average 1.5465465465465464) internal successors, (515), 338 states have internal predecessors, (515), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-17 15:00:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-17 15:00:41,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:41,262 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:41,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:41,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:41,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2143064384, now seen corresponding path program 1 times [2021-12-17 15:00:41,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:41,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374930319] [2021-12-17 15:00:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:41,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:00:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:00:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:00:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 15:00:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:00:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:00:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:00:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:00:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:00:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:00:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:00:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:00:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:00:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:00:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 15:00:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 15:00:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 15:00:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-17 15:00:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 15:00:41,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:41,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374930319] [2021-12-17 15:00:41,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374930319] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:41,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124294090] [2021-12-17 15:00:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:41,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:41,775 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) [2021-12-17 15:00:41,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:00:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 15:00:42,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 15:00:42,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:00:42,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124294090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:42,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:00:42,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 15:00:42,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951551826] [2021-12-17 15:00:42,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:42,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:00:42,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:42,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:00:42,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:00:42,362 INFO L87 Difference]: Start difference. First operand has 430 states, 333 states have (on average 1.5465465465465464) internal successors, (515), 338 states have internal predecessors, (515), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:00:42,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:42,412 INFO L93 Difference]: Finished difference Result 667 states and 988 transitions. [2021-12-17 15:00:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:00:42,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 154 [2021-12-17 15:00:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:42,425 INFO L225 Difference]: With dead ends: 667 [2021-12-17 15:00:42,425 INFO L226 Difference]: Without dead ends: 423 [2021-12-17 15:00:42,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:00:42,446 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:42,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:00:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-12-17 15:00:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2021-12-17 15:00:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 327 states have (on average 1.5412844036697249) internal successors, (504), 331 states have internal predecessors, (504), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2021-12-17 15:00:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 637 transitions. [2021-12-17 15:00:42,498 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 637 transitions. Word has length 154 [2021-12-17 15:00:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:42,502 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 637 transitions. [2021-12-17 15:00:42,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:00:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 637 transitions. [2021-12-17 15:00:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-17 15:00:42,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:42,508 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:42,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 15:00:42,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 15:00:42,720 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash 701498351, now seen corresponding path program 1 times [2021-12-17 15:00:42,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:42,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350369283] [2021-12-17 15:00:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:42,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:00:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:00:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:00:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:00:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 15:00:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:00:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:00:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:00:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:00:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:00:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:00:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:00:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:00:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:00:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:00:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:00:42,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350369283] [2021-12-17 15:00:42,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350369283] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583712630] [2021-12-17 15:00:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:42,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:42,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:42,968 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) [2021-12-17 15:00:42,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:00:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 15:00:43,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-17 15:00:43,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:00:43,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583712630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:43,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:00:43,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:00:43,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855212102] [2021-12-17 15:00:43,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:43,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:00:43,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:43,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:00:43,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:00:43,386 INFO L87 Difference]: Start difference. First operand 423 states and 637 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:00:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:43,450 INFO L93 Difference]: Finished difference Result 657 states and 966 transitions. [2021-12-17 15:00:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:00:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2021-12-17 15:00:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:43,458 INFO L225 Difference]: With dead ends: 657 [2021-12-17 15:00:43,458 INFO L226 Difference]: Without dead ends: 426 [2021-12-17 15:00:43,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:00:43,462 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 1 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1268 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 [2021-12-17 15:00:43,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1268 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:00:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-12-17 15:00:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2021-12-17 15:00:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 329 states have (on average 1.5379939209726443) internal successors, (506), 333 states have internal predecessors, (506), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2021-12-17 15:00:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 639 transitions. [2021-12-17 15:00:43,490 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 639 transitions. Word has length 136 [2021-12-17 15:00:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:43,491 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 639 transitions. [2021-12-17 15:00:43,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:00:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 639 transitions. [2021-12-17 15:00:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-17 15:00:43,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:43,493 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:43,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:00:43,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 15:00:43,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:43,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:43,717 INFO L85 PathProgramCache]: Analyzing trace with hash 246414571, now seen corresponding path program 1 times [2021-12-17 15:00:43,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:43,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454856775] [2021-12-17 15:00:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:43,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:00:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:00:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:00:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:00:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:00:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:00:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:00:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:00:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:00:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:00:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:00:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:00:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:00:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 15:00:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 15:00:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 15:00:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 15:00:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 15:00:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-17 15:00:43,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:43,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454856775] [2021-12-17 15:00:43,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454856775] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:43,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391358018] [2021-12-17 15:00:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:43,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:43,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:43,892 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) [2021-12-17 15:00:43,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:00:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:00:44,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 15:00:44,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:00:44,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391358018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:44,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:00:44,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:00:44,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488663144] [2021-12-17 15:00:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:44,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:00:44,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:00:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:00:44,360 INFO L87 Difference]: Start difference. First operand 425 states and 639 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:00:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:44,380 INFO L93 Difference]: Finished difference Result 898 states and 1370 transitions. [2021-12-17 15:00:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:00:44,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 164 [2021-12-17 15:00:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:44,383 INFO L225 Difference]: With dead ends: 898 [2021-12-17 15:00:44,383 INFO L226 Difference]: Without dead ends: 500 [2021-12-17 15:00:44,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:00:44,385 INFO L933 BasicCegarLoop]: 659 mSDtfsCounter, 134 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1250 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 [2021-12-17 15:00:44,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:00:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-12-17 15:00:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 492. [2021-12-17 15:00:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 382 states have (on average 1.557591623036649) internal successors, (595), 386 states have internal predecessors, (595), 81 states have call successors, (81), 28 states have call predecessors, (81), 28 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2021-12-17 15:00:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 756 transitions. [2021-12-17 15:00:44,399 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 756 transitions. Word has length 164 [2021-12-17 15:00:44,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:44,400 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 756 transitions. [2021-12-17 15:00:44,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:00:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 756 transitions. [2021-12-17 15:00:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-17 15:00:44,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:44,403 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:44,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:00:44,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:44,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:44,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1731772380, now seen corresponding path program 1 times [2021-12-17 15:00:44,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:44,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326542744] [2021-12-17 15:00:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:44,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:00:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:00:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:00:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:00:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:00:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:00:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:00:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:00:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:00:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:00:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:00:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:00:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 15:00:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 15:00:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 15:00:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 15:00:44,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326542744] [2021-12-17 15:00:44,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326542744] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869765245] [2021-12-17 15:00:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:44,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:44,737 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) [2021-12-17 15:00:44,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:00:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:44,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:00:44,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-17 15:00:45,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:00:45,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869765245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:45,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:00:45,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:00:45,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330219540] [2021-12-17 15:00:45,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:45,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:00:45,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:45,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:00:45,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:00:45,188 INFO L87 Difference]: Start difference. First operand 492 states and 756 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:45,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:45,238 INFO L93 Difference]: Finished difference Result 975 states and 1502 transitions. [2021-12-17 15:00:45,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:00:45,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2021-12-17 15:00:45,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:45,256 INFO L225 Difference]: With dead ends: 975 [2021-12-17 15:00:45,257 INFO L226 Difference]: Without dead ends: 494 [2021-12-17 15:00:45,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:00:45,259 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 152 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:45,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2338 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:00:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-12-17 15:00:45,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-12-17 15:00:45,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 383 states have (on average 1.556135770234987) internal successors, (596), 388 states have internal predecessors, (596), 81 states have call successors, (81), 28 states have call predecessors, (81), 29 states have return successors, (82), 79 states have call predecessors, (82), 80 states have call successors, (82) [2021-12-17 15:00:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 759 transitions. [2021-12-17 15:00:45,275 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 759 transitions. Word has length 146 [2021-12-17 15:00:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:45,276 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 759 transitions. [2021-12-17 15:00:45,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 759 transitions. [2021-12-17 15:00:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-17 15:00:45,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:45,282 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:45,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 15:00:45,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:45,499 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash 356557940, now seen corresponding path program 1 times [2021-12-17 15:00:45,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:45,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238283168] [2021-12-17 15:00:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:45,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:00:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:00:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:00:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:00:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:00:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:00:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:00:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:00:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:00:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:00:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:00:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 15:00:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 15:00:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 15:00:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-17 15:00:45,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:45,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238283168] [2021-12-17 15:00:45,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238283168] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:45,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143926459] [2021-12-17 15:00:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:45,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:45,726 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) [2021-12-17 15:00:45,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:00:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 15:00:46,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-17 15:00:46,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:00:46,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143926459] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:46,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:00:46,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 15:00:46,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037250134] [2021-12-17 15:00:46,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:46,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:00:46,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:46,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:00:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:00:46,299 INFO L87 Difference]: Start difference. First operand 494 states and 759 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:46,350 INFO L93 Difference]: Finished difference Result 977 states and 1507 transitions. [2021-12-17 15:00:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:00:46,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2021-12-17 15:00:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:46,353 INFO L225 Difference]: With dead ends: 977 [2021-12-17 15:00:46,353 INFO L226 Difference]: Without dead ends: 496 [2021-12-17 15:00:46,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:00:46,355 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 151 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:46,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2327 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:00:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-12-17 15:00:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2021-12-17 15:00:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 384 states have (on average 1.5546875) internal successors, (597), 390 states have internal predecessors, (597), 81 states have call successors, (81), 28 states have call predecessors, (81), 30 states have return successors, (87), 79 states have call predecessors, (87), 80 states have call successors, (87) [2021-12-17 15:00:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 765 transitions. [2021-12-17 15:00:46,386 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 765 transitions. Word has length 147 [2021-12-17 15:00:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:46,386 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 765 transitions. [2021-12-17 15:00:46,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 765 transitions. [2021-12-17 15:00:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-17 15:00:46,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:46,389 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:46,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-17 15:00:46,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:46,608 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:46,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash 961994509, now seen corresponding path program 1 times [2021-12-17 15:00:46,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:46,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529102128] [2021-12-17 15:00:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:46,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:00:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:00:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:00:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:00:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:00:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:00:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:00:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:00:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:00:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 15:00:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:00:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 15:00:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 15:00:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 15:00:46,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:46,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529102128] [2021-12-17 15:00:46,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529102128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:46,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:46,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:00:46,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267034846] [2021-12-17 15:00:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:46,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:00:46,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:00:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:00:46,772 INFO L87 Difference]: Start difference. First operand 496 states and 765 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:48,325 INFO L93 Difference]: Finished difference Result 1108 states and 1730 transitions. [2021-12-17 15:00:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:00:48,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2021-12-17 15:00:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:48,331 INFO L225 Difference]: With dead ends: 1108 [2021-12-17 15:00:48,331 INFO L226 Difference]: Without dead ends: 635 [2021-12-17 15:00:48,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:00:48,335 INFO L933 BasicCegarLoop]: 700 mSDtfsCounter, 1568 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:48,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1589 Valid, 1969 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 15:00:48,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-12-17 15:00:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 496. [2021-12-17 15:00:48,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 384 states have (on average 1.5546875) internal successors, (597), 390 states have internal predecessors, (597), 81 states have call successors, (81), 28 states have call predecessors, (81), 30 states have return successors, (86), 79 states have call predecessors, (86), 80 states have call successors, (86) [2021-12-17 15:00:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 764 transitions. [2021-12-17 15:00:48,364 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 764 transitions. Word has length 148 [2021-12-17 15:00:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:48,365 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 764 transitions. [2021-12-17 15:00:48,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-17 15:00:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 764 transitions. [2021-12-17 15:00:48,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-17 15:00:48,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:48,368 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:48,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:00:48,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1600900688, now seen corresponding path program 1 times [2021-12-17 15:00:48,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406623356] [2021-12-17 15:00:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:48,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:00:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:00:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:00:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:00:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:00:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:00:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:00:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:00:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:00:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:00:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:00:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 15:00:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 15:00:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-17 15:00:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-17 15:00:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-17 15:00:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-17 15:00:48,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:48,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406623356] [2021-12-17 15:00:48,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406623356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:48,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:48,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:00:48,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963859430] [2021-12-17 15:00:48,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:48,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:00:48,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:48,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:00:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:00:48,522 INFO L87 Difference]: Start difference. First operand 496 states and 764 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-17 15:00:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:49,985 INFO L93 Difference]: Finished difference Result 1110 states and 1733 transitions. [2021-12-17 15:00:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:00:49,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2021-12-17 15:00:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:49,989 INFO L225 Difference]: With dead ends: 1110 [2021-12-17 15:00:49,989 INFO L226 Difference]: Without dead ends: 637 [2021-12-17 15:00:49,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:00:49,991 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 1559 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:49,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 1981 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:00:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-12-17 15:00:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 498. [2021-12-17 15:00:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.5532467532467533) internal successors, (598), 392 states have internal predecessors, (598), 81 states have call successors, (81), 28 states have call predecessors, (81), 31 states have return successors, (88), 79 states have call predecessors, (88), 80 states have call successors, (88) [2021-12-17 15:00:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 767 transitions. [2021-12-17 15:00:50,010 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 767 transitions. Word has length 168 [2021-12-17 15:00:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:50,010 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 767 transitions. [2021-12-17 15:00:50,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-17 15:00:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 767 transitions. [2021-12-17 15:00:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-17 15:00:50,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:50,013 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:50,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:00:50,013 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:50,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:50,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1948880879, now seen corresponding path program 1 times [2021-12-17 15:00:50,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:50,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925308695] [2021-12-17 15:00:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:50,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:00:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:00:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:00:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:00:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:00:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:00:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:00:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:00:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:00:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:00:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 15:00:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 15:00:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 15:00:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 15:00:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 15:00:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-17 15:00:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:00:50,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:50,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925308695] [2021-12-17 15:00:50,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925308695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:50,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:50,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:00:50,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035995614] [2021-12-17 15:00:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:50,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:00:50,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:50,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:00:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:00:50,142 INFO L87 Difference]: Start difference. First operand 498 states and 767 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-17 15:00:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:52,350 INFO L93 Difference]: Finished difference Result 1108 states and 1728 transitions. [2021-12-17 15:00:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:00:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 169 [2021-12-17 15:00:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:52,353 INFO L225 Difference]: With dead ends: 1108 [2021-12-17 15:00:52,354 INFO L226 Difference]: Without dead ends: 637 [2021-12-17 15:00:52,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:00:52,356 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 1701 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 4418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:52,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1701 Valid, 2573 Invalid, 4418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 15:00:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-12-17 15:00:52,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 498. [2021-12-17 15:00:52,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.5532467532467533) internal successors, (598), 392 states have internal predecessors, (598), 81 states have call successors, (81), 28 states have call predecessors, (81), 31 states have return successors, (87), 79 states have call predecessors, (87), 80 states have call successors, (87) [2021-12-17 15:00:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 766 transitions. [2021-12-17 15:00:52,396 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 766 transitions. Word has length 169 [2021-12-17 15:00:52,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:52,396 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 766 transitions. [2021-12-17 15:00:52,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-17 15:00:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 766 transitions. [2021-12-17 15:00:52,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-17 15:00:52,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:52,398 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:52,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:00:52,399 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:52,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1825074369, now seen corresponding path program 1 times [2021-12-17 15:00:52,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:52,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733564429] [2021-12-17 15:00:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:52,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:00:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:00:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:00:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:00:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:00:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:00:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:00:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:00:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:00:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:00:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:00:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 15:00:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 15:00:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-17 15:00:52,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:52,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733564429] [2021-12-17 15:00:52,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733564429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:52,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:52,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:00:52,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052974928] [2021-12-17 15:00:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:00:52,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:00:52,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:00:52,523 INFO L87 Difference]: Start difference. First operand 498 states and 766 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-17 15:00:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:54,394 INFO L93 Difference]: Finished difference Result 1110 states and 1734 transitions. [2021-12-17 15:00:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:00:54,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2021-12-17 15:00:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:54,398 INFO L225 Difference]: With dead ends: 1110 [2021-12-17 15:00:54,398 INFO L226 Difference]: Without dead ends: 639 [2021-12-17 15:00:54,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:00:54,403 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 1695 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:54,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 2575 Invalid, 4449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 3822 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 15:00:54,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-12-17 15:00:54,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 500. [2021-12-17 15:00:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 386 states have (on average 1.5518134715025906) internal successors, (599), 394 states have internal predecessors, (599), 81 states have call successors, (81), 28 states have call predecessors, (81), 32 states have return successors, (92), 79 states have call predecessors, (92), 80 states have call successors, (92) [2021-12-17 15:00:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 772 transitions. [2021-12-17 15:00:54,440 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 772 transitions. Word has length 151 [2021-12-17 15:00:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:54,441 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 772 transitions. [2021-12-17 15:00:54,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-17 15:00:54,441 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 772 transitions. [2021-12-17 15:00:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-17 15:00:54,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:54,443 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:54,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:00:54,443 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:54,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash -190353900, now seen corresponding path program 1 times [2021-12-17 15:00:54,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:54,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930092149] [2021-12-17 15:00:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:54,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:00:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:00:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:00:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:00:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:00:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:00:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:00:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:00:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:00:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:00:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:00:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 15:00:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 15:00:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-17 15:00:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 15:00:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 15:00:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-17 15:00:54,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930092149] [2021-12-17 15:00:54,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930092149] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:00:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763629345] [2021-12-17 15:00:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:54,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:54,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:00:54,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:00:54,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 15:00:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:54,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:00:54,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:00:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-17 15:00:55,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:00:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-17 15:00:55,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763629345] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:00:55,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:00:55,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-17 15:00:55,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896372949] [2021-12-17 15:00:55,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:00:55,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 15:00:55,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:55,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 15:00:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:00:55,254 INFO L87 Difference]: Start difference. First operand 500 states and 772 transitions. Second operand has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2021-12-17 15:00:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:58,062 INFO L93 Difference]: Finished difference Result 1969 states and 3292 transitions. [2021-12-17 15:00:58,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 15:00:58,062 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 171 [2021-12-17 15:00:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:58,071 INFO L225 Difference]: With dead ends: 1969 [2021-12-17 15:00:58,071 INFO L226 Difference]: Without dead ends: 1500 [2021-12-17 15:00:58,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-17 15:00:58,073 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 4177 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 1513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4179 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 6289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:58,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4179 Valid, 4417 Invalid, 6289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1513 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 15:00:58,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-12-17 15:00:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 918. [2021-12-17 15:00:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 725 states have (on average 1.606896551724138) internal successors, (1165), 733 states have internal predecessors, (1165), 160 states have call successors, (160), 28 states have call predecessors, (160), 32 states have return successors, (181), 158 states have call predecessors, (181), 159 states have call successors, (181) [2021-12-17 15:00:58,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1506 transitions. [2021-12-17 15:00:58,139 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1506 transitions. Word has length 171 [2021-12-17 15:00:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:58,140 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1506 transitions. [2021-12-17 15:00:58,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2021-12-17 15:00:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1506 transitions. [2021-12-17 15:00:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-17 15:00:58,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:58,144 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:58,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 15:00:58,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:00:58,360 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:58,360 INFO L85 PathProgramCache]: Analyzing trace with hash 734646014, now seen corresponding path program 1 times [2021-12-17 15:00:58,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:58,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266260457] [2021-12-17 15:00:58,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:58,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:00:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:00:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:00:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:00:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:00:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:00:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:00:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:00:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 15:00:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:00:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 15:00:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 15:00:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-17 15:00:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:00:58,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:58,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266260457] [2021-12-17 15:00:58,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266260457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:58,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:58,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:00:58,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005081126] [2021-12-17 15:00:58,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:58,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:00:58,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:58,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:00:58,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:00:58,439 INFO L87 Difference]: Start difference. First operand 918 states and 1506 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:00:59,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:00:59,583 INFO L93 Difference]: Finished difference Result 2295 states and 3860 transitions. [2021-12-17 15:00:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:00:59,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2021-12-17 15:00:59,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:00:59,591 INFO L225 Difference]: With dead ends: 2295 [2021-12-17 15:00:59,591 INFO L226 Difference]: Without dead ends: 1455 [2021-12-17 15:00:59,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:00:59,609 INFO L933 BasicCegarLoop]: 747 mSDtfsCounter, 1555 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:00:59,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1573 Valid, 1668 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:00:59,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-12-17 15:00:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1308. [2021-12-17 15:00:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1036 states have (on average 1.6264478764478765) internal successors, (1685), 1044 states have internal predecessors, (1685), 239 states have call successors, (239), 28 states have call predecessors, (239), 32 states have return successors, (270), 237 states have call predecessors, (270), 238 states have call successors, (270) [2021-12-17 15:00:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 2194 transitions. [2021-12-17 15:00:59,679 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 2194 transitions. Word has length 155 [2021-12-17 15:00:59,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:00:59,680 INFO L470 AbstractCegarLoop]: Abstraction has 1308 states and 2194 transitions. [2021-12-17 15:00:59,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:00:59,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 2194 transitions. [2021-12-17 15:00:59,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-17 15:00:59,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:00:59,685 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:00:59,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:00:59,685 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:00:59,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:00:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash 60943839, now seen corresponding path program 1 times [2021-12-17 15:00:59,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:00:59,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811919274] [2021-12-17 15:00:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:00:59,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:00:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:00:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:00:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:00:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:00:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:00:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:00:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:00:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:00:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:00:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:00:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:00:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:00:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:00:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:00:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 15:00:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 15:00:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 15:00:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-17 15:00:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:00:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:00:59,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:00:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811919274] [2021-12-17 15:00:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811919274] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:00:59,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:00:59,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:00:59,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759256712] [2021-12-17 15:00:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:00:59,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:00:59,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:00:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:00:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:00:59,761 INFO L87 Difference]: Start difference. First operand 1308 states and 2194 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:00,977 INFO L93 Difference]: Finished difference Result 3269 states and 5569 transitions. [2021-12-17 15:01:00,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:00,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2021-12-17 15:01:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:00,994 INFO L225 Difference]: With dead ends: 3269 [2021-12-17 15:01:00,996 INFO L226 Difference]: Without dead ends: 2092 [2021-12-17 15:01:01,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:01,011 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 1552 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:01,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 1619 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:01:01,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2021-12-17 15:01:01,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1945. [2021-12-17 15:01:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1554 states have (on average 1.6364221364221365) internal successors, (2543), 1562 states have internal predecessors, (2543), 358 states have call successors, (358), 28 states have call predecessors, (358), 32 states have return successors, (389), 356 states have call predecessors, (389), 357 states have call successors, (389) [2021-12-17 15:01:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3290 transitions. [2021-12-17 15:01:01,153 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3290 transitions. Word has length 156 [2021-12-17 15:01:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:01,153 INFO L470 AbstractCegarLoop]: Abstraction has 1945 states and 3290 transitions. [2021-12-17 15:01:01,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3290 transitions. [2021-12-17 15:01:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-17 15:01:01,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:01,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:01,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:01:01,169 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:01,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:01,170 INFO L85 PathProgramCache]: Analyzing trace with hash -105379221, now seen corresponding path program 1 times [2021-12-17 15:01:01,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:01,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259357483] [2021-12-17 15:01:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:01,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:01:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:01:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:01:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:01:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:01:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:01:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:01:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:01:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:01:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 15:01:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 15:01:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 15:01:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 15:01:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-17 15:01:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-17 15:01:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-17 15:01:01,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:01,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259357483] [2021-12-17 15:01:01,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259357483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:01,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:01,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:01,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330179619] [2021-12-17 15:01:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:01,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:01,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:01,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:01,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:01,262 INFO L87 Difference]: Start difference. First operand 1945 states and 3290 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:02,536 INFO L93 Difference]: Finished difference Result 4749 states and 8180 transitions. [2021-12-17 15:01:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:02,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2021-12-17 15:01:02,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:02,552 INFO L225 Difference]: With dead ends: 4749 [2021-12-17 15:01:02,552 INFO L226 Difference]: Without dead ends: 3070 [2021-12-17 15:01:02,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:02,558 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1551 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:02,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1569 Valid, 1616 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2021-12-17 15:01:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2923. [2021-12-17 15:01:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2370 states have (on average 1.6443037974683545) internal successors, (3897), 2378 states have internal predecessors, (3897), 520 states have call successors, (520), 28 states have call predecessors, (520), 32 states have return successors, (567), 518 states have call predecessors, (567), 519 states have call successors, (567) [2021-12-17 15:01:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4984 transitions. [2021-12-17 15:01:02,689 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4984 transitions. Word has length 176 [2021-12-17 15:01:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:02,689 INFO L470 AbstractCegarLoop]: Abstraction has 2923 states and 4984 transitions. [2021-12-17 15:01:02,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4984 transitions. [2021-12-17 15:01:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 15:01:02,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:02,701 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:02,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:01:02,701 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:02,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -354776736, now seen corresponding path program 1 times [2021-12-17 15:01:02,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:02,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885997650] [2021-12-17 15:01:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:02,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:01:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:01:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:01:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:01:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:01:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:01:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:01:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:01:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:01:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 15:01:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 15:01:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 15:01:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:01:02,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:02,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885997650] [2021-12-17 15:01:02,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885997650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:02,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:02,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:02,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671662246] [2021-12-17 15:01:02,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:02,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:02,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:02,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:02,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:02,783 INFO L87 Difference]: Start difference. First operand 2923 states and 4984 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:04,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:04,115 INFO L93 Difference]: Finished difference Result 7088 states and 12315 transitions. [2021-12-17 15:01:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:04,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2021-12-17 15:01:04,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:04,136 INFO L225 Difference]: With dead ends: 7088 [2021-12-17 15:01:04,137 INFO L226 Difference]: Without dead ends: 4650 [2021-12-17 15:01:04,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:04,144 INFO L933 BasicCegarLoop]: 731 mSDtfsCounter, 1548 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:04,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 1614 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-12-17 15:01:04,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4503. [2021-12-17 15:01:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4503 states, 3705 states have (on average 1.6499325236167341) internal successors, (6113), 3713 states have internal predecessors, (6113), 765 states have call successors, (765), 28 states have call predecessors, (765), 32 states have return successors, (838), 763 states have call predecessors, (838), 764 states have call successors, (838) [2021-12-17 15:01:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 7716 transitions. [2021-12-17 15:01:04,372 INFO L78 Accepts]: Start accepts. Automaton has 4503 states and 7716 transitions. Word has length 158 [2021-12-17 15:01:04,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:04,373 INFO L470 AbstractCegarLoop]: Abstraction has 4503 states and 7716 transitions. [2021-12-17 15:01:04,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4503 states and 7716 transitions. [2021-12-17 15:01:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-17 15:01:04,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:04,388 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:04,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 15:01:04,389 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1929400712, now seen corresponding path program 1 times [2021-12-17 15:01:04,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:04,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927855464] [2021-12-17 15:01:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:04,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:01:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:01:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:01:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:01:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:01:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:01:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:01:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 15:01:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 15:01:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-17 15:01:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-17 15:01:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:01:04,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:04,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927855464] [2021-12-17 15:01:04,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927855464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:04,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:04,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:04,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71792569] [2021-12-17 15:01:04,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:04,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:04,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:04,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:04,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:04,476 INFO L87 Difference]: Start difference. First operand 4503 states and 7716 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:05,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:05,836 INFO L93 Difference]: Finished difference Result 11259 states and 19644 transitions. [2021-12-17 15:01:05,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:05,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2021-12-17 15:01:05,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:05,888 INFO L225 Difference]: With dead ends: 11259 [2021-12-17 15:01:05,889 INFO L226 Difference]: Without dead ends: 7493 [2021-12-17 15:01:05,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:05,903 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 1548 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:05,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1567 Valid, 1649 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2021-12-17 15:01:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 7346. [2021-12-17 15:01:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7346 states, 6055 states have (on average 1.6469033856317092) internal successors, (9972), 6063 states have internal predecessors, (9972), 1258 states have call successors, (1258), 28 states have call predecessors, (1258), 32 states have return successors, (1375), 1256 states have call predecessors, (1375), 1257 states have call successors, (1375) [2021-12-17 15:01:06,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 12605 transitions. [2021-12-17 15:01:06,518 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 12605 transitions. Word has length 159 [2021-12-17 15:01:06,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:06,519 INFO L470 AbstractCegarLoop]: Abstraction has 7346 states and 12605 transitions. [2021-12-17 15:01:06,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 12605 transitions. [2021-12-17 15:01:06,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-17 15:01:06,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:06,566 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:06,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 15:01:06,566 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:06,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1903293331, now seen corresponding path program 1 times [2021-12-17 15:01:06,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:06,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049177105] [2021-12-17 15:01:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:06,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:01:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:01:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:01:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:01:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:01:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:01:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:01:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:01:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:01:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 15:01:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-17 15:01:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-17 15:01:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-17 15:01:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-17 15:01:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-17 15:01:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-17 15:01:06,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:06,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049177105] [2021-12-17 15:01:06,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049177105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:06,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:06,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:06,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672541768] [2021-12-17 15:01:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:06,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:06,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:06,687 INFO L87 Difference]: Start difference. First operand 7346 states and 12605 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:08,226 INFO L93 Difference]: Finished difference Result 18679 states and 32608 transitions. [2021-12-17 15:01:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:08,227 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2021-12-17 15:01:08,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:08,265 INFO L225 Difference]: With dead ends: 18679 [2021-12-17 15:01:08,266 INFO L226 Difference]: Without dead ends: 12472 [2021-12-17 15:01:08,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:08,326 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 1545 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:08,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1563 Valid, 1628 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12472 states. [2021-12-17 15:01:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12472 to 12325. [2021-12-17 15:01:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12325 states, 10212 states have (on average 1.6473756365060712) internal successors, (16823), 10220 states have internal predecessors, (16823), 2080 states have call successors, (2080), 28 states have call predecessors, (2080), 32 states have return successors, (2275), 2078 states have call predecessors, (2275), 2079 states have call successors, (2275) [2021-12-17 15:01:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12325 states to 12325 states and 21178 transitions. [2021-12-17 15:01:08,807 INFO L78 Accepts]: Start accepts. Automaton has 12325 states and 21178 transitions. Word has length 179 [2021-12-17 15:01:08,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:08,807 INFO L470 AbstractCegarLoop]: Abstraction has 12325 states and 21178 transitions. [2021-12-17 15:01:08,807 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, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 12325 states and 21178 transitions. [2021-12-17 15:01:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-17 15:01:08,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:08,841 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:08,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 15:01:08,841 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:08,842 INFO L85 PathProgramCache]: Analyzing trace with hash 368053866, now seen corresponding path program 1 times [2021-12-17 15:01:08,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:08,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086686517] [2021-12-17 15:01:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:08,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:01:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:01:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:01:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:01:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:01:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:01:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 15:01:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 15:01:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 15:01:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 15:01:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-17 15:01:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-17 15:01:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:01:08,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:08,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086686517] [2021-12-17 15:01:08,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086686517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:08,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:08,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:08,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971787256] [2021-12-17 15:01:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:08,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:08,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:08,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:08,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:08,927 INFO L87 Difference]: Start difference. First operand 12325 states and 21178 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:10,699 INFO L93 Difference]: Finished difference Result 29637 states and 51468 transitions. [2021-12-17 15:01:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2021-12-17 15:01:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:10,762 INFO L225 Difference]: With dead ends: 29637 [2021-12-17 15:01:10,763 INFO L226 Difference]: Without dead ends: 19425 [2021-12-17 15:01:10,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:10,792 INFO L933 BasicCegarLoop]: 731 mSDtfsCounter, 1543 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:10,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 1592 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:10,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19425 states. [2021-12-17 15:01:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19425 to 19278. [2021-12-17 15:01:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19278 states, 15962 states have (on average 1.6221651422127552) internal successors, (25893), 15970 states have internal predecessors, (25893), 3283 states have call successors, (3283), 28 states have call predecessors, (3283), 32 states have return successors, (3622), 3281 states have call predecessors, (3622), 3282 states have call successors, (3622) [2021-12-17 15:01:11,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19278 states to 19278 states and 32798 transitions. [2021-12-17 15:01:11,603 INFO L78 Accepts]: Start accepts. Automaton has 19278 states and 32798 transitions. Word has length 161 [2021-12-17 15:01:11,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:11,603 INFO L470 AbstractCegarLoop]: Abstraction has 19278 states and 32798 transitions. [2021-12-17 15:01:11,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:11,604 INFO L276 IsEmpty]: Start isEmpty. Operand 19278 states and 32798 transitions. [2021-12-17 15:01:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-17 15:01:11,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:11,638 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:11,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 15:01:11,638 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:11,638 INFO L85 PathProgramCache]: Analyzing trace with hash -645899547, now seen corresponding path program 1 times [2021-12-17 15:01:11,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:11,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905344491] [2021-12-17 15:01:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:11,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:01:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:01:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:01:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:01:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:01:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:01:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:01:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:01:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 15:01:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-17 15:01:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-17 15:01:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-17 15:01:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:01:11,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:11,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905344491] [2021-12-17 15:01:11,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905344491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:11,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:11,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:11,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080619852] [2021-12-17 15:01:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:11,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:11,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:11,724 INFO L87 Difference]: Start difference. First operand 19278 states and 32798 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:14,212 INFO L93 Difference]: Finished difference Result 51069 states and 88386 transitions. [2021-12-17 15:01:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2021-12-17 15:01:14,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:14,312 INFO L225 Difference]: With dead ends: 51069 [2021-12-17 15:01:14,313 INFO L226 Difference]: Without dead ends: 34546 [2021-12-17 15:01:14,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:14,356 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1542 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:14,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 1616 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:01:14,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34546 states. [2021-12-17 15:01:15,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34546 to 34399. [2021-12-17 15:01:15,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34399 states, 28633 states have (on average 1.6190758914539167) internal successors, (46359), 28641 states have internal predecessors, (46359), 5733 states have call successors, (5733), 28 states have call predecessors, (5733), 32 states have return successors, (6346), 5731 states have call predecessors, (6346), 5732 states have call successors, (6346) [2021-12-17 15:01:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34399 states to 34399 states and 58438 transitions. [2021-12-17 15:01:15,851 INFO L78 Accepts]: Start accepts. Automaton has 34399 states and 58438 transitions. Word has length 162 [2021-12-17 15:01:15,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:15,851 INFO L470 AbstractCegarLoop]: Abstraction has 34399 states and 58438 transitions. [2021-12-17 15:01:15,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 34399 states and 58438 transitions. [2021-12-17 15:01:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-17 15:01:16,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:16,057 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:16,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 15:01:16,057 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:16,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:16,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1530083940, now seen corresponding path program 1 times [2021-12-17 15:01:16,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:16,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678754106] [2021-12-17 15:01:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:16,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:01:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:01:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:01:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:01:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:01:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:01:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 15:01:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 15:01:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 15:01:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 15:01:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 15:01:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 15:01:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-17 15:01:16,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:16,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678754106] [2021-12-17 15:01:16,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678754106] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:16,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:16,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:16,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058011023] [2021-12-17 15:01:16,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:16,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:16,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:16,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:16,156 INFO L87 Difference]: Start difference. First operand 34399 states and 58438 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:19,898 INFO L93 Difference]: Finished difference Result 93941 states and 161785 transitions. [2021-12-17 15:01:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-12-17 15:01:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:20,202 INFO L225 Difference]: With dead ends: 93941 [2021-12-17 15:01:20,203 INFO L226 Difference]: Without dead ends: 63213 [2021-12-17 15:01:20,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:20,257 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1540 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:20,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 1621 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:01:20,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63213 states. [2021-12-17 15:01:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63213 to 63066. [2021-12-17 15:01:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63066 states, 52787 states have (on average 1.614867296872336) internal successors, (85244), 52795 states have internal predecessors, (85244), 10246 states have call successors, (10246), 28 states have call predecessors, (10246), 32 states have return successors, (11391), 10244 states have call predecessors, (11391), 10245 states have call successors, (11391) [2021-12-17 15:01:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63066 states to 63066 states and 106881 transitions. [2021-12-17 15:01:23,535 INFO L78 Accepts]: Start accepts. Automaton has 63066 states and 106881 transitions. Word has length 163 [2021-12-17 15:01:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:23,536 INFO L470 AbstractCegarLoop]: Abstraction has 63066 states and 106881 transitions. [2021-12-17 15:01:23,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 63066 states and 106881 transitions. [2021-12-17 15:01:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-17 15:01:23,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:23,606 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:23,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 15:01:23,607 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:23,607 INFO L85 PathProgramCache]: Analyzing trace with hash 896860306, now seen corresponding path program 1 times [2021-12-17 15:01:23,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:23,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524369981] [2021-12-17 15:01:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:23,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:01:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:01:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:01:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:01:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:01:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:01:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 15:01:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 15:01:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 15:01:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 15:01:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 15:01:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 15:01:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-17 15:01:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-17 15:01:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-17 15:01:23,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:23,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524369981] [2021-12-17 15:01:23,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524369981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:23,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:23,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:23,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044633813] [2021-12-17 15:01:23,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:23,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:23,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:23,801 INFO L87 Difference]: Start difference. First operand 63066 states and 106881 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:29,168 INFO L93 Difference]: Finished difference Result 118317 states and 204162 transitions. [2021-12-17 15:01:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:29,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2021-12-17 15:01:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:29,682 INFO L225 Difference]: With dead ends: 118317 [2021-12-17 15:01:29,682 INFO L226 Difference]: Without dead ends: 118086 [2021-12-17 15:01:29,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:29,735 INFO L933 BasicCegarLoop]: 736 mSDtfsCounter, 1535 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:29,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 1624 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:01:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118086 states. [2021-12-17 15:01:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118086 to 117939. [2021-12-17 15:01:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117939 states, 99292 states have (on average 1.6095153688111832) internal successors, (159812), 99300 states have internal predecessors, (159812), 18614 states have call successors, (18614), 28 states have call predecessors, (18614), 32 states have return successors, (20805), 18612 states have call predecessors, (20805), 18613 states have call successors, (20805) [2021-12-17 15:01:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117939 states to 117939 states and 199231 transitions. [2021-12-17 15:01:35,781 INFO L78 Accepts]: Start accepts. Automaton has 117939 states and 199231 transitions. Word has length 183 [2021-12-17 15:01:35,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:35,781 INFO L470 AbstractCegarLoop]: Abstraction has 117939 states and 199231 transitions. [2021-12-17 15:01:35,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-17 15:01:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 117939 states and 199231 transitions. [2021-12-17 15:01:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-17 15:01:35,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:35,889 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:35,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 15:01:35,890 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:35,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash 663626691, now seen corresponding path program 1 times [2021-12-17 15:01:35,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:35,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218873573] [2021-12-17 15:01:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:35,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:01:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:01:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:01:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:01:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:01:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:01:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:01:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:01:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 15:01:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-17 15:01:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-17 15:01:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 15:01:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-17 15:01:36,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:36,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218873573] [2021-12-17 15:01:36,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218873573] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:36,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275245196] [2021-12-17 15:01:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:36,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:36,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:36,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:01:36,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 15:01:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 15:01:36,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-17 15:01:36,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:01:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:01:37,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275245196] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:01:37,474 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:01:37,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2021-12-17 15:01:37,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609354272] [2021-12-17 15:01:37,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:01:37,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-17 15:01:37,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:37,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-17 15:01:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2021-12-17 15:01:37,478 INFO L87 Difference]: Start difference. First operand 117939 states and 199231 transitions. Second operand has 32 states, 30 states have (on average 8.866666666666667) internal successors, (266), 24 states have internal predecessors, (266), 9 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47)